dear participants and colleagues, - itn

1

Dear Participants and Colleagues,

Welcome to the International Symposium on Aquatic Sciences and Resources Management

(IS-ARM) 2020 at IPB University, Bogor, Indonesia. The symposium hosted by Department of

Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University aims

to catalyze research and exchange ideas among researchers, academics, practitioners,

students, and policy makers from around the world, and establish academic relationships in

biology, ecology, and aquatic resources management aspects. It will provide opportunities for

sharing experiences and information concerning research and development of aquatic

resources management from upstream to downstream. There will be four keynote

presentations, 99 oral presentations, and 24 poster presentations in this two-day event. The

symposium schedule can be seen in more detail in the following pages of this program book.

Our sincere gratitude and appreciation go to our co-hosts: International Islamic University

Malaysia (IIUM) and AMBL (Amakusa Marine Biological Laboratory) – Kyushu University. We

also thank Faculty of Fisheries and Marine Sciences (IPB University), International Collaboration

Office (IPB University), SEAMEO-BIOTROP (Southeast Asian Regional Centre for Tropical

Biology), Center for Coastal and Marine Resources Studies (IPB University), Center for

Environmental Science (IPB University), Centre for Disaster Studies (CERDAS-IPB), committee

organizer, and all participants that have had gave their contribution in making this meeting

happen.

Enjoy your seminar. Have a nice meeting!

Warm regards,

Fery Kurniawan

Chairman of Organizing Committee

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Steering Committee:

1. Dr. Ir. Majariana Krisanti, M.Si

2. Dr. Ali Mashar, S.Pi, M.Si

3. Dr. Ir. Luky Adrianto, M.Sc

4. Dr. Ir. Ario Damar, M.Si

5. Dr. Zulhamsyah Imran, S.Pi, M.Si

6. Prof. Dr. Ir. Hefni Effendi, M.Phil

7. Dr. Ir. M. Mukhlis Kamal, M.Sc

8. Dr. Yonvitner, S.Pi, M.Si

9. Prof. Dr. Ir. Yusli Wardiatno, M.Sc

11. Prof. Dr. Ir. Mennofatria Boer, DEA

Organizing Committee:

Chairman : Dr. Fery Kurniawan, S.Kel, M.Si

Secretary : Agus Alim Hakim, S.Pi, M.Si

Secretariat : 1. Maryani, S.M

2. Widaryanti, S.Pi, M.M

3. Siti Rokiah, S.M

Treasurer : 1. Suryanti

2. Mery Rusmini, S.E

Event Div. : 1. Dudi M. Wildan, S.Pi, M.Si

2. Aries Asriansyah, S.Pi

Sponsorship and Exhibition Div. : 1. Aliati Iswantari, S.Pi, M.Si

2. Dwi Yuni Wulandari, S.Pi, M.Si

Scientific Div. : 1. Dr. Ir. Niken TM Pratiwi, M.Si

2. Prof. Dr. Ir. Sulistiono, M.Sc

3. Prof. Dr. Ir. Ridwan Affandi, DEA

4. Prof. Dr. Ir. Etty Riani, M.Si

5. Dr. Ir. Achmad Fahrudin, M.Si

6. Dr. Ir. Sigid Hariyadi, M.Sc

7. Dr. Ir. Rahmat Kurnia, M.Si

8. Dr. Ir. Zairion, M.Sc

9. Dr. Ir. Fredinan Yulianda, M.Sc

10. Dr. Taryono, S.Pi, M.Si

11. Dr. Ir. Gatot Yulianto, M.Si

12. Dr. Ir. Nurlisa A. Butet, M.Sc

13. Charles PH Simanjuntak, S.Pi, M.Si, Ph.D

Equipment and Logistic Div : 1. KMS Zainal Abidin

2. Reza Zulmi, S.Pi, M.Si

3. M. Yunus, S.Pi

4. Antoni, S.Pi

Consumption Div. : 1. Ari Maria, S.M

Documentation Div : 1. Haris Munandar, S.Kom

2. Ida Nurokhmah, S.Pi, M.Si

Publication Div. : 1. Inna Puspa Ayu, S.Pi, M.Si

2. Ikhwan Nurcholis, S.Pi

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PROGRAM OF INTERNATIONAL SYMPOSIUM ON

AQUATIC SCIENCES AND RESOURCES MANAGEMENT 2020 “Highland to Ocean: Biology, Ecology, and Aquatic Resources Management”

Day 1 - November 16th, 2020

Time (GMT +7) Activity

07.50 – 08.10 Participants enter the main room (zoom meeting)

08.10 – 08.25 Opening ISARM H2O

08.25 – 08.30 Singing National Anthem “Indonesia Raya”

08.30 – 08.40 Report of the Head of the Department of Aquatic Resources Management

|IPB University

08.40 – 08.50 Welcome from SEAMEO Biotrop

08.50 – 09.00 The Rector's speech as well as opening the event

09.00 – 09.05 Photo session

09.05 – 09.10 Introduction of moderator (Dr. Zulhamsyah Imran, S.Pi, M.Si |Department

of Aquatic Resources Management | IPB University)

09.10 – 09.55 Keynote speaker (Dr. Akbar John | International Islamic University Malaysia)

09.55 – 10.00 Introduction of moderator (Dr. Ir. Mohammad Mukhlis Kamal, M.Sc

|Department of Aquatic Resources Management | IPB University)

10.00 – 10.45 Keynote speaker (Dr. Qian Tang |National University of Singapore)

10.45 – 11.10 Poster session

11.10 – 11.20 Break

11.20 – 12.30 Oral Presentation

Session 1

12.30 – 13.30 Lunch Break


Session 2


Session 3

15.50 – 15.55 Return to the main room

15.55 – 16.10 Closing Day 1 & Announcement

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Day 2 - November 17th, 2020

Time (GMT +7) Activity

07.50 – 08.10 Participants enter the main room (zoom meeting)

08.10 – 08.25 Opening

08.25 – 08.30 Introduction of moderator (Dr. Ir. Fredinan Yulianda, M.Sc |Department of

Aquatic Resources Management | IPB University)

08.30 – 09.15 Keynote speaker (Prof. Mutsunori Tokeshi | Kyushu University)

09.15 – 09.40 Poster session

09.40 – 09.50 Break


Session 4


Session 5

12.10 – 13.10 Lunch Break


Session 6

14.10 – 14.15 Introduction of moderator (PD. Dr. rer. nat. habil. Sonja Kleinertz|Faculty of

Fisheries and Marine Science | IPB University)

14.15 – 15.00 Keynote speaker (Dr. Jiri Patoka |Czech University of Life Sciences Prague)

15.00 – 15.10 Closing by the Dean of FPIK

15.10 – 15.15 Closing ISARM H2O

15.15 – 15.20 Announcement

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November 16th, 2020

Room A Session 1 (11.20 – 12.30)

Moderator: Dr. Majariana Krisanti, S.Pi, M.Si

Time (GMT +7) ID Name Title

11.20 – 11.28 A1-1 Sulastri

Phytoplankton Diversity and Functional Group in

Three Urban Lake of Cibinong, West Java

Indonesia

11.28 – 11.36 A1-2 Reliana Lumban

Toruan

Zooplankton Community Structure in Lake

Tondano, Indonesia

11.36 – 11.44 A1-3 Niken Tunjung

Murti Pratiwi

Phytoplankton Performance in Supporting Primary

Productivity in the Intensive Culture System of

Vaname Shrimp

11.44 – 11.55 Discussion

11.55 – 12.03 A1-4 Tumpak

Sidabutar

Phytoplankton Species Potentially “Harmful Algal

Bloom” (HABs) in Jakarta Bay

12.03 – 12.11 A1-5 Ario Damar

Algae Bloom Phenomenon in Jakarta Bay as

Symptoms of Severe Eutrophication: Monitoring

Results of 2014-2016

12.11 – 12.19 A1-6 Elga Mediana

Syafitri

Biodiversity and Community of Zooplankton

Structure in Cengkok Coastal Waters and Its

Around, Banten Bay


Session 2 (13.30 – 14.40)

Moderator: Dr. Ali Mashar, S.Pi, M.Si


13.30 – 13.38 A1-7 Annisa

Dinulislam

Heavy Metals (Pb, Hg) of Blood Cockle in Cengkok

Waters, Banten Bay, Indonesia

13.38 – 13.46 A1-8 Gatot Prayoga

Heavy Metal (Pb, Hg, Cu) Contamination Level in

Sediment and Water in Eastern Segara Anakan

Lagoon, Cilacap, Indonesia

13.46 – 13.54 A1-9 Lismining

Pujiyani Astuti

Bioaccumulation of Non-Essential Heavy Metals in

Fish in Ir. H. Djuanda Reservoir, Purwakarta


14.05 – 14.13 A1-10 Hefni Effendi Pollution Source of Cileungsi-Cikeas-Bekasi River

14.13 – 14.21 A1-11 Hefni Effendi Pollution Index of Cileungsi-Cikeas-Bekasi River

14.21 – 14.29 A1-12 Sri Malahayati

Yusuf Surface Runoff and Discharge of Bekasi River


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Session 3 (14.40 – 15.40)

Moderator: Dr. Akbar John


14.40 – 14.48 A1-13 Tyara Aprilani

Khoirunnisa

A Molecular Approach for Species Validation of

Freshwater Shrimp from Lido Lake, West Java

14.48 – 14.56 A1-14 Bambang Gunadi

Improving Genetic Quality of Cultivated Aquatic

Species under a Breeding Program: Case Study of

First Generation (G1) Population of Red Tilapia

(Oreochromis spp.)

14.56 – 15.04 A1-15 Jana Marková Modern Methods of Genetic Sampling of Aquatic

Organisms


15.16 – 15.24 A1-16 Vinna Windy Putri Genetic Variation of CO1 Gene of Hippa

admirabilis in Northern Sulawesi

15.24 – 15.32 A1-17

Anggi

Nurhardiyanti

Munawaroh

Characterization of Whole Mitochondrial Genome

Amyda cartilaginea from Dharmasraya West

Sumatera


Room B Session 1 (11.20 – 12.30)

Moderator: Dr. Ir. Zairion, M.Sc


11.20 – 11.28 B1-1 Aditya Hikmat

Nugraha

Morphological and Growth Responses of Enhalus

acoroides Seedlings Under Carbondioxide

Enrichment: An Experimental Assesment

11.28 – 11.36 B1-2 Lukas

Diversity of Riparian Plants of Black Water

Ecosystem in The Sebangau River, Central

Kalimantan, Indonesia

11.36 – 11.44 B1-3 Vivin Seygita

Habitat Preference of Longtail Shad (Tenualosa

macrura) in the Water of Bengkalis, Meranti Island

and Siak Regencies, Riau Province


11.55 – 12.03 B1-4 Lies Setijaningsih

The Effect of Garlic Allium sativum Addition in

Feed to the Growth Performance and Immune

Response of Tilapia Oreochromis niloticus

12.03 – 12.11 B1-5 Febri Ria Safitri

Biodiversity and Community Structure of

Phytoplankton in Reservat and Protected Area of

Mahseer (Tor spp.) Habitats in Bungo and Kerinci

Regencies, Jambi Province, Indonesia

12.11 – 12.19 B1-6 Totok

Hestirianoto

Tor sp. Tracking Using Radiotelemetry in Batang

Toru River, North Sumatera Province, Indonesia


7

Session 2 (13.30 – 14.40)

Moderator: Dr. Charles P.H. Simanjuntak, S.Pi, M.Si


13.30 – 13.38 B1-7 Muhammad Fadil

Farid

Evidence of Residential Area of Whale Sharks in

Saleh Bay, West Nusa Tenggara

13.38 – 13.46 B1-8 Mohammad

Mukhlis Kamal

Code of Conduct Enjoying the Appearance of

Halmahera’s Endemic Walking Shark

(Hemiscyllium halmahera) in Ternate coastal

waters

13.46 – 13.54 B1-9 Mohamad Natsir

Assessing Bali Sardine Stock Status Using Real-

Time Electronic Catch Landing Data Recorder and

Time Series Catch Database


14.05 – 14.13 B1-10 Nuralim Pasisingi

Length-Weight Relationships and Sex Ratio of

Selaroides leptolepis, Cuvier 1833 in Tomini Bay,

Indonesia.

14.13 – 14.21 B1-11 Asep Priatna

Length Base Spawning Potential Ratio of Indian

Scad (Decapterus russelli, Rupell, 1928) in South

China Sea

14.21 – 14.29 B1-12 Yonvitner

Length Based-Spawning Potential Ratio (LB-SPR),

on Exploited Demersal Stock (Priachantus tayenus)

in Small Scale Fisheries, Sunda Strait.


Session 3 (14.40 – 15.50)

Moderator: Ir. Agustinus M. Samosir, M.Phil


14.40 – 14.48 B1-13 Agus Romadhon Exploring Quality of Small Island Socio-ecological

Systems in The Saobi Island

14.48 – 14.56 B1-14 Nurul Dhewani

Mirah Sjafrie

Socio-ecological System Perspective of Seagrass

Ecosystem in Wakatobi

14.56 – 15.04 B1-15 Munawar Spatial Analysis of Ecosystem Services of Bima Bay

Region, West Nusa Tenggara, Indonesia


15.15 – 15.23 B1-16 Christina Yuliaty

Stakeholders Role in Economy Creative

Development Based on Maritime Culture in Alor

Regency

15.23 – 15.31 B1-17 Muhammad Rizali

Umarella

Sustainable Challenges in Developing Marine-

Based Adventure Tourism in Ambon

15.31 – 15.39 B1-18 Fredinan Yulianda

Potential Carrying Capacity of Marine Ecotourism

in Sub Region III of Thousand Island’s Marine

National Park


8

Room C Session 1 (11.20 – 12.30)

Moderator: Dr. Yonvitner, S.Pi, M.Si


11.20 – 11.28 C1-1 Try Febrianto The Condition of Coral Reef Ecosystem in Natuna

Island

11.28 – 11.36 C1-2 Citra Satrya Utama

Dewi

Current Status of Coral Reef Ecosystems in

Brumbun Bay, Tulungagung

11.36 – 11.44 C1-3 Budi Prabowo

Coral Reef Ecosystems Condition Prediction After

Tsunami Based on Previous Reef fish Community

Structure and Benthic Coverage Surveillance on

Sumur, Banten


11.55 – 12.03 C1-4 Cakra Adiwijaya

Assessment of Coral Reef Health Conditions in

Juru Seberang Village, Tanjung Pandan District,

Belitung Regency-Bangka-Belitung Province

12.03 – 12.11 C1-5 Mikael Prastowo

Widodo

Assessment of Coral Reefs Damaged Due to MV

Pazifik Ran Aground in the Sape Strait Using an

Aerial Photography Approach and Species

Distribution Modeling

12.11 – 12.19 C1-6 Lili Surayya Eka

Putri

Transplantation of Acropora loripes using Spider

Frame Module in Bali Waters


Session 2 (13.30 – 14.40)

Moderator: Dr. Ayu Ervinia, S.Pi, M.Sc


13.30 – 13.38 C1-7 Ismail

Distribution of Mangroves in The Segara Anakan

Lagoon and Its Surrounding Area, Cilacap

Regency, Indonesia

13.38 – 13.46 C1-8

Allsay Kitsash

Addifisyukha

Cintra

Effect of Burrows of Boleophthalmus pectinirostris

(Linnaeus, 1758) (Class Actinopterygii Family

Gobiidae) on Total Organic Matter in the

Mangrove Ecosystem of Pandansari Brebes,

Central Java

13.46 – 13.54 C1-9 Gema

Wahyudewantoro

Growth Pattern and the Reproduction Factor of

Three Spot Gouramy Trichopodus trichopterus

(Pallas, 1770) in Mangrove Waters of Muara

Angke (Jakarta) and Ciperet Estuary (Cilacap),

Indonesia)


14.05 – 14.13 C1-10 Mokhamad Asyief

Khasan Budiman

The Estimation of the Coastal Fisheries Resources

Quantity Based on Water Birds in the Ujung

Pangkah Region, Gresik Regency, East Java

14.13 – 14.21 C1-11 Yoppie Christian

Opportunity for the Status Improvement of

Mangrove Forest of Sungai Pakning, Riau as

Essential Ecosystem Area in the Coastal of

Sumatera Island

14.21 – 14.29 C1-12 M Arsyad Al Amin

Effectiveness and Impact Studies of Mangrove

Rehabilitation in Northern Coast of West Java;

Case Study in Karawang Regency


9

Session 3 (14.40 – 15.40)

Moderator: Dr. Ir. Sigid Hariyadi, M.Sc


14.40 – 14.48 C1-13 Refa Riskiana

Abundance and Distribution of Microplastics in

Baturusa Watershed of Bangka Belitung Islands

Province

14.48 – 14.56 C1-14 Zulhamsyah Imran Microplastic Spatial Distribution in Sediment of

the Citanduy River, West Java

14.56 – 15.04 C1-15 Taryono Kodiran Management Strategy of Plastic Pollution in the

Cimandiri River-Sukabumi, West Java


15.16 – 15.24 C1-16 Markus T. Lasut

Seasonal Variation of Marine Debris at Manado

Bay (Northern Sulawesi, Indonesia, Where the

National Park of Bunaken is Located)

15.24 – 15.32 C1-17 Ika Kusumawati

Public Perceptions in General and Student’s

Perception toward Marine Litter in Southwest

Aceh


10

November 17th, 2020

Room A Session 4 (09.50 – 11.00)

Moderator: Dr. Ayu Ervinia, S.Pi, M.Sc


09.50 – 09.58 A2-1 Aida Sartimbul The High Abundance of Sardinella lemuru Catch

in Prigi Waters and Their Implication to Plankton

09.58 – 10.06 A2-2 Dehan

Pramadhana

Aquatic Environment Condition as a Base for

Fisheries Development in Cengkok Coastal

Waters, Banten Bay

10.06 – 10.14 A2-3 Beatrix M.

Rehatta

Proportion of Feasible to Catch of The Flying Fish

(Hirundichthys oxycephalus) and Its Implications

to Fisheries Management in Indonesia and Timor

Leste


10.25 – 10.33 A2-4 Thomas Hidayat Characteristic of Neritic Tuna Fisheries in the Java

Sea and Adjacent waters

10.33 – 10.41 A2-5 Dudi Lesmana The Colour Preference of Panulirus homarus

10.41 – 10.49 A2-6 Katarina Hesty

Rombe

Ecosystem Approach to Lobster Fisheries

Management in Palabuhanratu Bay, Sukabumi,

West Java


Session 5 (11.00 – 12.00)

Moderator: Dr. Mohammad Fitri Yusof


11.00 – 11.08 A2-7 Tatia Kuljanishvili

On the finding of Nile tilapia Oreochromis

niloticus (Cichliformes: Cichlidae) in Georgia,

South Caucasus

11.08 – 11.16 A2-8 Surya Gentha

Akmal

Redclaw crayfish, Cherax quadricarinatus: Spatial

Distribution and Dispersal Pattern in Java Island

11.16 – 11.24 A2-9 Taryono Kodiran

Management Policy for Controlling Invasive

Species Red Claw Crayfish (Cherax

quadricarinatus) in Lido Lake Water, Bogor

Regency-West Java


11.36 – 11.44 A2-10 Imam Taufik

Application of Aquaponic Ebb -Tide System on

Tilapia (Oreochromis niloticus) and Cyprinid

(Cyprinus carpio) to Optimize Growth

Performance

11.44 – 11.52 A2-11 Astri Suryandari

Fish Community Structure in Sermo Reservoir,

Yogyakarta, Indonesia: Initial Study on Invasive

Fish Species


11

Session 6 (13.10 – 14.10)

Moderator: Dr. Charles P.H. Simanjuntak, S.Pi, M.Si


13.10 – 13.18 A2-12 Aditya Hikmat

Nugraha

Feeding Habit of Strombus canarium in Tanjung

Sebauk Bintan Island

13.18 – 13.26 A2-13 Widianingih

Water Quality in Ecosystem Sea Cucumber

Acaudina sp. in the Delta Wulan Waters, Central

of Java, Indonesia

13.26 – 13.34 A2-14 Ennis Wian Erliani The Distribution Pattern and Description of New

Sipunculan Characteristics in Banda Naira


13.46 – 13.54 A2-15 Ananingtyas S.

Darmarini

Community Structure of Intertidal

Macrozoobenthos in Muddy Substrate, Lubuk

Damar, Aceh Tamiang, Indonesia

13.54 – 14.02 A2-16 Imroatushshooli

khah

The Using of Macrozoobenthos Community to

Assess Current Condition of the Urban Lake-Situ

Cikaret, West Java


Room B Session 4 (09.50 – 10.50)

Moderator: Dr. Ir. Mohammad Mukhlis Kamal, M.Sc


09.50 – 09.58 B2-1 Iffi Rizkiya

Different of Aeration Rate on Hatching Rate,

Abnormality, Yolk Sac Absorption, and Absolute

Length of Newly Hatched Masheer Larvae, Tor

soro

09.58 – 10.06 B2-2 Yosmaniar

Isolate of Nitrifying and Denitrifying Bacteria

Activities Derived from Catfish, Pangasius sp.

Culture Pond

10.06 – 10.14 B2-3 Cita Mahardika

Hariyono

Physico-chemical Characteristics of Rhizopus sp.-

Fermented Fish Feed Pellets Containing Black

Soldier Fly Larvae (Hermetia illucens) Meal


10.26 – 10.34 B2-4 Adam Robisalmi Effect of Different Feed Restriction on Growth and

Hematology of Red Tilapia (Oreochromis spp.)

10.34 – 10.42 B2-5 Wahyulia Cahyanti

Reproductive and Larval Performance of Artificially

Spawned Javaen Barb Puntius orphoides from Two

Populations


12

Session 5 (11.00 – 12.10)

Moderator: Prof. Dr. Ir. Sulistiono, M.Sc


11.00 – 11.08 B2-6 Lily Susanti

Effects of Nanobubble Aeration on Water

Temperature and Oxygen Consumption of

Penaeus vannamei Post Larvae 8

11.08 – 11.16 B2-7 Hessy Novita

Application of Loop Mediated Isothermal

Amplification (LAMP) Method for Detection of

Edwardsiella ictaluri on Patin (Pangasius sp.) Fish

11.16 – 11.24 B2-8 Yohanna R.

Widyastuti

Optimization of Stocking Density of Milk Fish

(Chanos chanos) in Polyculture System with

Seaweed (Gracilaria sp.) on Traditional Earthen

Pond


11.35 – 11.43 B2-9 Irkhamiawan Ma'ruf How to Make the Ally of Inland fisheries and

Inland Aquaculture: A Review

11.43 – 11.51 B2-10 Irwan Fffendi

Effect of Heterotrophic Bacteria on the Growth of

Tilapia (Oreochromis niloticus) Cultivated in

Brackish Water

11.51 – 11.59 B2-11 Catur Sriherwanto

Increasing the Water Stability of Sinking Feed

Using Edible Fungal Hyphae for Reducing Aquatic

Feed Waste: A Laboratory Study


Session 6 (13.10 – 14.10)

Moderator: Dr.rer.nat. Kustiariyah, S.Pi, M.Si


13.10 – 13.18 B2-12 Muhammad Safaat Sargassum-Based Potential Valuable Material in

Indonesia – An Overview

13.18 – 13.26 B2-13 Hafiludin

Alteration of Inflammation Cytokines in

Lipopolysaccharide-Activated Lymphocyte by

Crude Extract of Taurine from Sea Slugs

Paraonchidium via Down-Regulation of of NF-kB

Pathway

13.26 – 13.34 B2-14 Diah Anggraini

Wulandari

Characterization, Antioxidant and Antibacterial

Activity of Cultivated Sea Cucumbers from Bali,

Indonesia


13.46 – 13.54 B2-15 Fajar Anggraeni

Reproduction Performance of Female Freshwater

Prawn, Macrobrachium rosenbergii, Through

Dietary Administration of Medroxyprogesterone

Acetat

13.54 – 14.02 B2-16 Kojiro Inoue A Study of Prediction and Factors of Mass

Mortality in Mariculture using Machine Learning


13

Room C Session 4 (09.50 – 10.50)

Moderator: Inna Puspa Ayu, S.Pi, M.Si


09.50 – 09.58 C2-1 Ronny Irawan

Wahju

Bycatch in Glass Eel Fishery of Rivers and Estuaries

of Sukabumi, West Java

09.58 – 10.06 C2-2 Marfian Dwidima

Putra

Socio-Economic Influence of Fishing Ground

Development of Freshwater Eels (Anguilla spp.) in

Cimandiri River

10.06 – 10.14 C2-3 Iftitah Rahmi Perception of Glass Eel Fishermen Affecting the

Utilization in the River Estuary of Sukabumi District


10.26 – 10.34 C2-4 Rani Hafsaridewi Resources Dynamics Impact to Fishers’ Resilience

10.34 – 10.42 C2-5 Irnad

Enhanced Fisher Job Satisfaction and Loyalty for

Sustainable Fisheries Development in Bengkulu,

Indonesia


Session 5 (11.00 – 12.00)

Moderator: Prof. Dr. Ir. Hefni Effendi, M.Phil


11.00 – 11.08 C2-6 Naila Khuril Aini The first record of the nest placement of

horseshoe crab (Tachypleus gigas) in Indonesia

11.08 – 11.16 C2-7 Danu Wijaya Ecobiology of Horseshoe Crab in Brebes, Northern

Coast of Java: Preliminary Study

11.16 – 11.24 C2-8 Nisfa Hanim Distribution of Matuta purnama J. C. Y. Lai & Galil,

2007 (Brachyura: Matutidae) Outside Type Locality

11. 24 – 11.36 Discussion

11.36 – 11.44 C2-9 Alysa Noverizka

Utomo

Population Dynamic of Two Dorippid Crabs

(Brachyura: Dorippidae) in East Lampung Waters,

Indonesia

11.44 – 11.52 C2-10 Anna Heirina

Investigation of Ectoparasite and Symbiont in Blue

Swimming Crab (Portunus pelagicus) from Demak

and East Lampung coastal waters


14

Session 6 ((13.10 – 14.10)

Moderator: Dr. Ir. Handoko Adi Susanto, M. Sc.


13.10 – 13.18 C2-11 Diding Sudira

Efendi

An Evaluation of Grouper (Serranidae) and

Snapper (Lutjanidae) Fisheries Management

Policy in Saleh Bay, Indonesia

13.18 – 13.26 C2-12 Terry Indrabudi

Marine Tenure in Indonesia: Revisiting the Status

and Implementation to Foster Sustainability in

Fisheries

13.26 – 13.34 C2-13 Ali Yansyah

Abdurrahim

Preparing Indonesia for 'the UN Decade of Ocean

Science for Sustainable Development 2021-2030':

Stakeholder Mapping and Analysis


13.46 – 13.54 C2-14 Yudi Wahyudin

Compensation Claim and Its Dispite Resolution

on the Coral Reef Ecosystem Damage Due to

Vessel Grounded in the Waters Area of Tengah

Island, Karimunjawa Subdistrict, Jepara Regency,

Central Java Province

13.54 – 14.02 C2-15 Ardiyanto

Maksimilianus Gai

Social Capital in Improving the Settlement

Environment Quality in the Coastal City of

Surabaya


Note:

ID: A1-1

Day (Day 1 or 2)

Room Zoom (A, B, or C)

Number of Presentation

15

November 16th, 2020 Time (GMT +7) ID Name Title

10.45 – 11.05

P1-1 Muhammad Arsyad

Al Amin

Coastal Resources Degradation in Tangerang,

Banten Province: State and Management Action

P1-2 Majariana Krisanti

Secondary Production of Sesarma sp. in the

Coastal Ecosystem of Ponelo Island, North

Gorontalo

P1-3 Aries Asriansyah Diversity of Phytoplankton in Batang Toru River

and Its Arround, North Sumatera

P1-4 Dudi Muhammad

Wildan

Study on Aquatic Ecobiology Of Batang Toru River

and Its Arround, North Sumatera: Part 3.

Macrozoobenthic Diversity

P1-5 Erfan Andi

Hendrajat

Polyculture Seaweed Gracilaria sp. And Milkfish in

The Pond

P1-6 Fachmijany

Sulawesty

Spatial Variation of The Phytoplankton and Some

Physico Chemical Variables in Lake Tempe, South

Sulawesi

P1-7 Fuquh Rahmat

Shaleh

Analysis of Water Pollution in Kaliotik River,

Lamongan-West Java

P1-8 Ita Riniatsih

Spatial Assessment of Seagrass Ecosystem Using

the Unmanned Aerial Vehicle (Uav) In Teluk Awur,

Coastal Water of Jepara

P1-9 Muhammad Ihsan

Rifqi

Ecotourism Management in Wana Wisata Curug

Nangka Bogor Regency Based on Visitors and

Natural Resources

P1-10 Yonvitner

Artificial Intelligent for Investment Assessment in

Coastal and Small Island Area, Based on Disaster

Risk

P1-11 Sugiarti Estuarine Fish Structure Community in Banten Bay,

Indonesia

P1-12 Zairion

A Note on The Investigation of Morphometric

Differentiation Among Mantis Shrimp

(Stomatopoda) In South Madura Waters,

Indonesia

16

November 17th, 2020 Time (GMT +7) ID Name Title

09.15 – 09.35

P2-1 Yusli Wardiatno

A Morphometric Approach into Mackerel

(Rastrelliger spp.) Diversity in Fisheries

Management Area 711 as a Management Base

P2-2 Ali Mashar

Biodiversity of Macroinvertebrates in Artificial

Substrate from Several Habitats at Ponelo Island,

Gorontalo

P2-3 Irdiana Sintia Preliminary Study on The Sound Character of

Coconut Crab (Birgus latro)

P2-4 Safran Makmur

Reproductive Biology of Hampala Barb (Hampala

macrolepidota Kuhl & Van Hasselt 1823) in Ranau

Lake, Indonesia

P2-5 Djamhuriyah S.

Said

The Development of Adapted Fish Oryzias

marmoratus at Ex Situ Habitat

P2-6 Tegoeh

Noegroho

Productivity and Susceptibility Analysis of Indo-

Pacific King Mackerel in IFMA 711 Waters

P2-7 Heny Budi

Setyorini

Fat, Water and Ash Content in Chlorophyceae,

Rhodophyceae and Phaeophyceae Macroalgae at

Sepanjang Beach, Yogyakarta, Indonesia

P2-8 Rita Rostika

The Description of Villi from Grouper Cantang

(Ephinephelus fuscogutattus lanceolotus) Fed with

Exogenous Enzyme Papain

P2-9 Desy Mulyawati

The Growth Potential of Single Celled Marine

Chlorophycean Microalgae in Modified Saline

Karst Water Culture Media

P2-10 Edika Surbakti

Distribution of Dissolved Heavy Metals Hg, Pb, Cd,

and As Content in Bojonegara Coastal Waters,

Banten Bay

P2-11 Inna Puspa Ayu DNA Metabarcoding Approach for Fisheries

Management

P2-12 Siswanta Kaban

Some Population Parameters on The Common

Carp (Cyprinus carpio, Linnaeus, 1758) Fish in Lake

Paniai, Papua

18

Application of Molecular Tools in Aquatic Resource Management

Akbar John

INOCEM, Kulliyyah of Science, International Islamic University Malaysia (IIUM), Kuantan 25200, Pahang

Malaysia

*Corresponding author

E-mail address: [email protected]

Abstract

In the past three decades, application of various genetic markers has proven promising output

in sustainable management of aquatic resources. From the species identification, germplasm

management to the mass production of genetically stronger species for aquaculture practices

helped in meeting the global consumer demand. Management of aquatic genetic resources

interpreted in the light of its DNA sequences (A, T, G and C) undoubtedly having its own merits

and exposed to scientific criticism. This presentation is aimed to unearth the availability of

different molecular tools in aquatic resource management practices, its applications,

limitations and its possible impact on the environment. Policies related to applying molecular

tools in resource management will also be addressed.

Keywords: Resource management; Fish; DNA; Molecular tools; Policy pathways

19

The Different Fates of Two Asian Horseshoe Crab Species with Different

Dispersal Capabilities

Tang Qian

National University of Singapore

*Corresponding author:


Abstract

In brief, the study aims to investigate the knowledge on organisms’ evolutionary responses to

past sea level fluctuations and to estimate their evolutionary potential in efforts to mitigate

the effects of future climate change. We sampled tens of thousands of genomic markers of

~300 individuals in two of the four extant horseshoe crab species across the complex

archipelagic Singapore Straits. Carcinoscorpius rotundicauda, a less mobile mangrove species,

has finer population structure and lower genetic diversity compared to the dispersive deep-

sea Tachypleus gigas. Even though the source populations of both species during the Last

Glacial Maximum exhibited comparable effective population sizes, the less dispersive C.

rotundicauda seems to lose genetic diversity much more quickly because of population

fragmentation. Contra previous studies’ results, we predict that the more commonly sighted

C. rotundicauda faces a more uncertain conservation plight, with a continuing loss in

evolutionary potential and higher vulnerability to future climate change. Our study provides

important genomic baseline data for the redirection of conservation measures in the face of

climate change, and can be used as a blueprint for assessment and mitigation of the adverse

effects of impending sea level rise in other systems.

20

Towards Sustainable Reef Management: Lessons from the Bunaken NP,

Indonesia

M. Tokeshi

AMBL (Amakusa Marine Biological Laboratory) – Kyushu University, Reihoku-Amakusa, Kumamoto

863-2507, Japan



Abstract

Tropical marine ecosystems, in particular those featuring coral reefs, are important from both

ecological and socio-economic points of view. It has widely been recognised that coastal

waters of tropical Indo-Pacific encompass by far the highest level of marine biodiversity on

Earth and that the livelihoods of people in Indo-Pacific coastal regions have traditionally

depended on marine resources derived from such reef environments. In recent years, however,

anthropogenic disturbances of local to global spatial scales including global climate change

have been impacting heavily upon all natural environments worldwide and tropical reef

systems are no exception. Changes in tropical and subtropical reefs have been particularly

noticeable over the past quarter century, and are occurring at an alarming rate in more recent

years. This presentation will focus on the case of ecologically-rich reef environments found in

the Bunaken National Park in North Sulawesi, eastern Indonesia. Our research experience

spanning nearly two decades in Bunaken and surrounding areas points to problems and

difficulties of implementing management schemes which work in medium to long terms. It

may even be argued that, in the wake of COVID-19, a “regime-shift” is required, not in the

ecosystems concerned but in the “mind-set” of us humans in the first place, such that measures

are more firmly adopted to avoid crossing the point of no return in terms of sustainably

managing Indo-Pacific reef ecosystems, for the long-term health and survival of diverse

organisms including humans.

21

Non-native and Invasive Freshwater Species in Indonesia: A Compendium of

Research from Period 2015-2020

Jiří Patoka1,*, Yonvitner2,3, Ernik Yuliana4, Yusli Wardiatno2, Rikho Jerikho2,

Muhammad Takdir5, Agus Santoso6, Surya Gentha Akmal1,3

1) Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Kamýcká

129, 16500 Praha – Suchdol, Czech Republic 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB

University, 16680 Bogor, Indonesia 3) Centre for Disaster Studies (CERDAS-IPB), 16680 Bogor, Indonesia

4) Department of Biology, Faculty of Sciences and Technoloy, Universitas Terbuka, 15437 Tangerang

Selatan, Indonesia 5) Department of Fisheries, Faculty of Fisheries and Marine Sciences, University of Papua, Jalan Gunung

Salju, 98314 Manokwari, Indonesia 6) Department of Statistic, Faculty of Sciences and Technoloy, Universitas Terbuka, 15437 Tangerang

Selatan, Indonesia

*E-mail address: [email protected]

Abstract

Indonesia is the world's largest island country covering more than 17,000 islands including

Java, Sumatra, Borneo (Kalimantan), Sulawesi and western New Guinea. There are three

biodiversity hotspots: Sundaland, Wallacea and Sahul, and the biodiversity is very rich. Non-

native species in general and invasive ones in particular threat endemic biota and cause

numerous environmental and socio-economic losses globally. In Indonesia, many non-native

species have not been monitored and for this reason, their possible impacts are unknown or

overlooked. Existing national legislative regulations seem to be inefficient in this regard.

Considering aforementioned facts, together with Indonesian colleagues, we decided to start a

cooperation in this regard and focus on non-native species of fish as well as of aquatic

invertebrates, their impacts and risks, pathways of introduction and prediction of the

establishment of new populations when introduced in Indonesia based on environmental

suitability modelling. We found and evaluated fish species such as Arapaima gigas,

22

Pterygoplichthys disjunctivus and P. pardalis, and crayfish such as Cherax quadricarinatus and

Procambarus clarkii. Moreover, one new pathogen Aphanomyces astaci causing crayfish

plague was recorded in Indonesia. In 2019, we established a new research group to further

research activity and education of general public.

Global biodiversity is threatened by biological invasions related with human activities (Lodge

1993). Invasive species can outcompete the native biota, transmit non-native pathogens and

parasites and also cause significant socio-economic losses (Simberloff et al. 2013). In case

aquatic fauna, various pathways for introduction of non-native species are known such as:

aquaculture for human consumption, pet trade, pest control and also unintentional

translocation of “hitchhikers” including ectocommensals and other symbionts (Mouslih 1987;

Padilla, Williams 2004; Patoka et al. 2016a,b).

Policymakers try to regulate biological invasions by legislative restrictions; unfortunately, this

effort is frequently ineffective due to “dead letters” creation and lack of further education of

general public (Patoka et al. 2018a). Thus, together with irresponsible behaviour of the traders,

producers and owners of the mentioned creatures, the records of non-native and partly

invasive freshwater fauna are year by year more numerous and this trend will probably

continue also in future.

Indonesia is the world’s largest island country with more than 17,000 islands including Java,

Sumatra, Borneo (Kalimantan), Sulawesi and western New Guinea and covering three

biodiversity hotspots: Sundaland, Wallacea and Sahul (Myers et al. 2000). Similarly, as in Brazil,

the Indonesian native fauna is very rich with many endemic taxa inhabiting various

environment including also freshwater habitats. Unfortunately, many species and whole

ecosystems are endangered by human activities, habitat destruction and biological invasions.

Therefore, we decided to start the cooperation to try to improve the situation.

Our research activities include primarily monitoring of non-native freshwater species, their

spread and related risks for native biota and also for humans. In 2015, we collected data and

one year later reported on the first occurrence of crayfish west of the Wallace line: Cherax

quadricarinatus was found being introduced in two lakes in Java (Patoka et al. 2016c). Further

monitoring discovered plenty new locations where this crayfish established feral populations

across the Indonesian territory including many waterbodies in Java, Sumatra, Kalimantan,

Sulawesi (Patoka et al. 2018b). Even if C. quadricarinatus is non-native in Indonesia with the

exception of Papua and West Papua Provinces in New Guinea, it is classified as not so risky as

another non-native species, North American Procambarus clarkii. The latter one was found

being cultured in Java in 2017 (Putra et al. 2018). This crayfish is known as successful invader

in many regions worldwide and it serves as a resistant vector of the pathogen Aphanomyces

astaci causing “crayfish plague”, the disease lethal for all crayfish taxa of non-North American

origin (Svoboda et al. 2017). Moreover, also some crab and shrimp species seem to be sensitive

to this pathogen (Svoboda et al. 2014). Since the crayfish plague was found in the population

of P. clarkii and also in crab Parathelphusa convexa and shrimp Macrobrachium lanchesteri, the

threat for native crustraceans and also for aquaculture is obvious. In Indonesia, native crayfish

inhabit just various waterbodies in New Guinea. These crayfish can be in risk when certain

invasive ones will be introduced there. We highlighted this threat in another paper focused on

23

the prediction based on climatic similarity of New Guinea and native ranges of selected non-

native crayfish species (Yonvitner et al. 2020).

Beside the crayfish, also non-native fish taxa were found in Indonesian wild. We collected data

on occurrence of two sailfin catfishes native to South America: Pterygoplichthys disjunctivus

and P. pardalis. Both species and also their possible hybrids were found establishing self-

sustaining populations and spreading across Indonesia (Patoka et al. 2020). Documented

pathways and purposes for their introductions were: feeding of domestic animals, human

consumption, and ornamental aquaculture. Moreover, one new pathway was recorded in

Lombok island: releasing to mitigate another aquatic pest, the common water hyacinths

(Eichhornia crassipes). Unfortunately, the sailfin catfish are benthic fish and water hyacinth is

floating plant. Hence, the purpose of the introduction was absolutely wrong and caused the

establishment of new invasive fish species there.

The charismatic and very popular ornamental fish Arapaima gigas was found to occur in

Indonesia. This is a voracious big predatory fish which can threat native biota dramatically.

Even if the reproduction in the wild has not been documented yet, adult ovigerous female was

captured. Since this species is critically endangered in its native range in South America, this is

what is called “biodiversity conservation paradox” (Marková et al. under review). Further

monitoring is strongly recommended in this regard.

Aforementioned species are regulated in Indonesia but effectivity of the related laws is at least

disputable (Patoka et al. 2018a). Therefore, we recommend our findings to conservationsts,

wildlife managers, policy makers and other stakeholders in Indonesia to improve the legislative

regulations, management of invasive species, farming activities and conservation of

endangered species. The Indonesian Crayfish Research Group (ICRG) was established in July

2019 according the overlap outputs of our research cooperation to Indonesian (Bahasa

Indonesia). We hope that our research activites will help to protect awesome Indonesian fauna

and flora and to mitigate the socio-economic losses caused by invasive species in this country.

Acknowledgements

We thank to many colleagues who help us with the research activities, namely: Luky Adrianto,

Daisy Wowor, Majariana Krisanti, Mohammad Mukhlis Kamal, Romanus Edy Prabowo, Marfian

Dwidima Putra, Antonín Kouba, Martin Bláha, Pavel Kozák, Lukáš Kalous, Miloslav Petrtýl and

.Group. The cooperation is supported by The Indonesian Crayfish Research Iva Langrová

References

Lodge DM (1993) Biological invasions: lessons for ecology. Trends in Ecology and Evolution

8:133-137.

Mouslih M (1987) Fish and crayfish introductions in Morocco. Revue d'Hydrobiologie Tropicale

(France) 20:65-72.

Myers N, Mittermeier RA, Mittermeier CG, et al. (2000) Biodiversity hotspots for conservation

priorities. Nature 403:853.

Padilla DK, Williams SL (2004) Beyond ballast water: aquarium and ornamental trades as

sources of invasive species in aquatic ecosystems. Frontiers in Ecology and the

Environment 2:131-138.

24

Patoka J, Bláha M, Devetter M, et al. (2016a) Aquarium hitchhikers: attached commensals

imported with freshwater shrimps via the pet trade. Biological Invasions 18:457-461.

Patoka J, Bláha M, Kalous L, et al. (2016b) Potential pest transfer mediated by international

ornamental plant trade. Scientific Reports 6:25896.

Patoka J, Wardiatno Y, Yonvitner, et al. (2016c) Cherax quadricarinatus (von Martens) has

invaded Indonesian territory west of the Wallace Line: evidences from Java. Knowledge and

Management of Aquatic Ecosystems 417:39.

Patoka J, Magalhães ALB, Kouba A, et al. (2018a) Invasive aquatic pets: failed policies increase

risks of harmful invasions. Biodiversity and Conservation 27:3037-3046.

Patoka J, Wardiatno Y, Mashar A, et al. (2018b) Redclaw crayfish, Cherax quadricarinatus (von

Martens, 1868), widespread throughout Indonesia. BioInvasions Records 7:185-189.

Patoka J, Takdir M, Yonvitner, et al. (2020) Two species of illegal South American sailfin catfish

of the genus Pterygoplichthys well-established in Indonesia. Knowledge and Management

of Aquatic Ecosystems 421:28.

Putra MD, Bláha M, Wardiatno Y, et al. (2018) Procambarus clarkii (Girard, 1852) and crayfish

plague as new threats for biodiversity in Indonesia. Aquatic Conservation: Marine and

Freshwater Ecosystems 28:1434-1440.

Simberloff D, Martin J-L, Genovesi P, et al. (2013) Impacts of biological invasions: what's what

and the way forward. Trends in Ecology and Evolution 28:58-66.

Svoboda J, Strand DA, Vrålstad T, et al. (2014) The crayfish plague pathogen can infect

freshwater‐inhabiting crabs. Freshwater Biology 59:918-929.

Svoboda J, Mrugała A, Kozubíková‐Balcarová E, Petrusek A (2017) Hosts and transmission of

the crayfish plague pathogen Aphanomyces astaci: a review. Journal of Fish Diseases

40:127-140.

Yonvitner Y, Patoka J, Yuliana E, et al. (2020) Enigmatic hotspot of crayfish diversity at risk:

Invasive potential of non‐indigenous crayfish if introduced to New Guinea. Aquatic

Conservation: Marine and Freshwater Ecosystems, 30: 219-22.

25

Phytoplankton Diversity and Functional Group in Three Urban Lakes of

Cibinong, West Java, Indonesia

Sulastri* and Ira Akhdiana

Research Centre for Limnology, Indonesian Institute of Sciences, Jl. Raya Bogor km 46, Cibinong,

Indonesia

*Coresponding author: Research Centre for Limnology, Indonesian Institute of Sciences, Jl. Raya Bogor

km 46, Cibinong, Indonesia

Email: [email protected]

Abstract

Urban lakes are rapidly becoming vulnerable because of such as anthropogenic pollution and

urbanization. Phytoplankton is classified in the group of basic biological indicators of lake

status. We determined and compared the diversity and functional group of phytoplankton

including environmental factors in three urban lakes of Cibinong, West Java, Indonesia. The

data was collected twice a week from July to October 2018. Three urban lakes showed different

water quality. Phytoplankton composition consists of Chlorophyta, Bacillariophyta,

Chrysophyta, Cyanophyta, Pirrhophyta, Cryptophyta dan Euglenophyta division. Chlorophyta

is more diverse group than other divisions in those three urban lakes. High cellular density of

Chlorophyta was found in Lake Cibuntu and Lake Dora while in Lake Lotus high cellular

densities represented by Bacillariophyta. Temporally, high cellular densities change from

Chlorophyta to Chrysophyta in Lake Dora. Based on the index biodiversity, Lake Dora is more

stable habitat than Lake Cibuntu and Lake Lotus with the index diversity (H’) and Eveness (J)

value of Lake Dora, Cibuntu and Lotus, H’: 1.41- 4.03, J: 0.4 – 0.98; H’: 0.65- 2.61; J: 0.2- 0.76

and H’: 0.12 - 2.19. J: 0.11-0.57 respectively. The stability of habitat in Lake Dora was also

indicated by the balance of phytoplankton functional group composition.

Keywords: Diversity; Phytoplankton; Lake status.

A1-1

mailto:[email protected]

26

Zooplankton Community Structure in Lake Tondano, Indonesia

Reliana Lumban Toruan

Research Centre for Limnology, Indonesian Institute of Sciences. Jl. Raya Bogor Km 46 Cibinong

Science Centre and Botanical Garden, Cibinong 16911 – Indonesia

*Corresponding author: Research Centre for Limnology, Indonesian Institute of Sciences. Jl. Raya

Bogor Km 46 Cibinong Science Centre and Botanical Garden, Cibinong 16911 – Indonesia


Abstract

Study on freshwater ecology have been long focused toward subtropical habitats with few

references to tropical regions. Zooplankton, in particular, are among the most abundant

aquatic organism and are key player of aquatic food webs and a solid understanding of their

community structure can be of direct benefit to freshwater ecosystem management. We

studied spatial patterns of zooplankton community structure in Lake Tondano, Celebes Island-

Indonesia, with the aim to understand how local environmental and habitat heterogeneity

driving the zooplankton community structure. We performed field samplings to collect

zooplankton using a vertical tow with a 156 µm mesh plankton net from 1 meter above the

sediment to the surface, and to measure environmental parameters using portable multi

probes water quality checker from three different water columns. The sampling designed

included different habitats within the lake to look at diversity of the entire zooplankton

communities including rotifers, cladocerans and copepods in Lake Tondano, Indonesia. We

identified 21 species of cladocerans, 31 copepods and 60 rotifers. Our result indicates relatively

low number of cladocerans which was found to be typical in topical lake ecosystem with high

occurrence of planktivorous fish.

Keywords: Zooplankton diversity; Tropical lake; Tondano.

A1-2


27

Phytoplankton Performance in Supporting Primary Productivity in the Intensive

Culture System of Vaname Shrimp

Niken Tunjung Murti Pratiwi*, Bambang Widigdo, Achmad Yasin, Jahrodin Soffyan,

Aliati Iswantari and Dwi Yuni Wulandari

Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis Darmaga Bogor, Bogor 16680, Indonesia

*Corresponding author: Department of Aquatic Resources Management, Faculty of Fisheries and

Marine Sciences, IPB University (Bogor Agricultural University), Jl. Agatis Darmaga Bogor, Bogor 16680,

Indonesia


Abstract

In a shrimp pond ecosystem, plankton is an important element in supporting successful shrimp

production, including in intensive ponds with high stocking densities and high frequency of

feed application. As a result, in this system, there are phytoplankton dynamics due to changes

in water conditions in the ponds. This study aims to analyze the dynamics of primary

production related to the performance of the phytoplankton community and water quality in

the intensive pond system. Observations were made on primary productivity, phytoplankton

community structure, and various water quality parameters. The results showed that

Chaetoceros and Rhizosolenia appeared in all observation with high densities, followed by

Nitzschia, Straurastrum, Oscillatoria, and Peridinium with less densities. Overall, the diversity

of plankton was relatively low with an indication of dominance species appearance. There was

increasing primary productivity over time and fluctuated characteristics of water quality There

was a strong correlation between nutrient parameters (nitrate, nitrite and ammonium) and

orthophosphate and the abundance of phytoplankton that tent to increase due to the increase

of nutrients resulting from the decomposition of organic matter. There was a synchronous

condition between the presence of organic matter and nutrients through the value of C/N and

N/P, as well as the composition of plankton, which supports primary productivity during

shrimp rearing in the pond.

Keywords: Nutrients; Organic matter; Shrimp pond; Water quality.

A1-3

28

Phytoplankton Species Potentially “Harmful Algal Bloom” (HABs) in Jakarta

Bay

Tumpak Sidabutar* and Sam Wouthuyzen

Research Centre for Oceanography, LIPI. Jl. Pasir Putih I, Jakarta 14430, Indonesia

*Corresponding author: Research Center for Oceanography - LIPI


Abstract

The occurrence of algal bloom is causing problems in many parts of the world, including in

Indonesian coastal waters. Harmful algal bloom events in Jakarta Bay have been increased

since several years ago and caused massive fish kills which lead to economic losses in local

fisheries, decrease of water quality and even threat to people consuming fish from the bay.

Research had been conducted in Jakarta Bay in 2008, 2009, 2010, 2011, 2013 and 2015, to

study the variability of phytoplankton species that potentially as bloom maker. The samples

were taken with a plankton net of 20 μm mesh size which deployed vertically to a depth of 7

- 10 meter at each station. The results showed that the abundance of phytoplankton ranged

from 106 to 108 cells.m-3. The population composed of 27 taxa, mostly belong to diatoms and

dinoflagellates. We observed there are nine genera of phytoplankton which potentially as

harmful algal bloom species, occurring in Jakarta Bay. Three of them are known as the

predominant species of algal bloom in this bay, namely: Skeletonema, Chaetoceros and

Thalassiosira. Besides that, there are some species also playing a role in the tragedy of fish-

killing due to oxygen depletion during blooms events in Jakarta Bay.

Keywords: Algal blooms; Variability; Predominant; Potentially.

A1-4


29

Algae Bloom Phenomenon in Jakarta Bay as Symptoms of Severe

Eutrophication:

Monitoring Results of 2014-2016

Ario Damar1,2,*, Ageng Dwi Prismayanti2, Bambang Yudho Rudianto2 and Agus Ramli2

1) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis Darmaga Bogor, Bogor 16680, Indonesia 2) Center for Coastal and Marine Resources Studies, IPB University (Bogor Agricultural University),

Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127, Indonesia


Marine Sciences, IPB University (Bogor Agricultural University), Jl. Agatis Darmaga Bogor, Bogor 16680,

Indonesia


Abstract

Algae bloom is one of the symptoms of eutrophication process in an estuary, causing in some

ecological and societal problems for the aquatic environments and human activities. Algae

blooms observation was conducted in the dry season period between 2014 to 2016, in an

eutrophic embayment of Jakarta Bay, Indonesia. Observations were made by conducting

transect-boat survey and plankton sampling once the bloom was observed. Samples of

chlorophyll-a and net plankton were taken and measured in the laboratory for phytoplankton

biomass analysis, cell counting and identification of bloom-forming species. In the 3

consecutive years of observation, the most frequent bloom-forming species observed were

Skeletonema costatum, Pseudonitzschia spp., and Noctiluca scintillans. The most frequent

location of the blooms observed was in the inner part of the bay, in the area in front of

Marunda, Ancol and Angke. Phytoplankton biomass during the bloom events were ranged

between 126.3 to 232.3 µg Chl-a L-1, with the highest was in 2015 of during the Skeletonema

costatum bloom. Blooms were also observed but in low frequency and low biomass at the

middle part of the bay off Marunda coastline area. Cell phytoplankton counting were ranged

from 1.117 × 106 cell L-1 to 2.682 × 106 cell L-1. During surveys, there was no mass mortality

of fishes were detected.

Keywords: Eutrophication; Algae bloom; Phytoplankton; Nutrient enrichment; Tropical bay.

A1-5

30

Biodiversity and Community of Zooplankton Structure in Cengkok Coastal

Waters and its Around, Banten Bay

Elga Mediana Syafitri1, Endang Sunarwati Srimariana2 and Sulistiono2,*

1) Department of Marine Science and Technology, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Department of Marine Science and Technology, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia


Marine Sciences, IPB University (Bogor Agricultural University), Kampus IPB Darmaga, Jl. Agatis, Bogor,

16680, Indonesia.


Abstract

Cengkok coastal waters of Banten Bay, is one of the waters that have many anthropogenic,

industrial and aquaculture activities. Zooplankton is one of microorganism who can become

bioindicator for the waters condition. This study aimed to analyze the biodiversity and

structure of the zooplankton community in waters. The study was carried out, from May to

September 2019 at five stations distributed from the river, estuary, to the sea. Data analysis

was done by calculating the value of composition, abundance, similarity index, biological index

and PCA. Based on the study obtained, the zooplankton consisted of 17 classes and 47 genera.

Malacostraca and Ciliata are zooplankton which is always found in Cengkok coastal waters and

with the largest composition. Based on location and time, respectively, the average

composition of Malacostraca (47.2% and 49.8%) and Ciliata (40.6% and 37%). Based on

location and time observation, the average diversity index (H') was (0.7-1.6) and (1.1-1.6);

evenness index was (0.7-0.8) and (0.7-0.9); and index dominance was (0.3-0.6) and (0.3-0.4)

respectively. The PCA results showing the tendency of water parameters with an abundance

of zooplankton divided into 3 group and the results of similarity indeks showed the

zooplankton abundance had highest similarity value at Stations 3 and 5 (0.829) and based on

waters parameters showed that the highest similarity is 0.98. Based on the community

structure index, it is found that the condition of zooplankton structure community in Cengkok

coastal waters, Banten Bay is unstable.

Keywords: Banten Bay; Coastal; Zooplankton community structure.

A1-6


31

Heavy Metals (Pb, Hg) of Blood Cockle in Cengkok Waters, Banten Bay,

Indonesia

Annisa Dinulislam, Sulistiono*, Djamar T. F. Lumban Batu and Ridwan Affandi





16680, Indonesia.


Abstract

Blood cockle (Anadara granosa) is a biota that has high economic and ecological values in

Cengkok Waters, Banten Bay. Human activities such as settlements, agriculture, fisheries,

mining, and industries are seen as the leading causes of degradation in the aquatic

environment with a negative impact on blood cockles. Pb and Hg from these human activities

pollute the Cengkok Waters and accumulate in the body of blood cockles. This research aims

at analyzing the Pb and Hg contained in blood cockles’ meat in Cengkok Waters, Banten Bay.

Sampling was carried out for 6 months, from March to August 2019. Measurements of heavy

metal contents were conducted using the AAS (Atomic Absorption Spectrophotometer). The

results showed that Pb and Hg were still within the quality standard of BPOM 2018. The

calculation of the maximum consumption limit of blood cockles’ meat in the Cengkok Waters

revealed that the maximum suggested consumption was 2.54 kg of meat/week for adults and

0.76 kg of meat/week for children.

Keywords: Banten Bay; Blood cockles (Anadara granosa); Cengkok Waters; Heavy metals.

A1-7


32

Heavy Metal (Pb, Hg, Cu) Contamination Level in Sediment and Water in

Eastern Segara Anakan Lagoon, Cilacap, Indonesia

Gatot Prayoga1,*, Sulistiono2, Hefni Effendi1,2 and Sigid Hariyadi2

1) Environmental Research Center, IPB University, Dramaga, Bogor 16680, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University, Dramaga, Bogor 16680, Indonesia

*Corresponding author: Environmental Research Center, IPB University, Dramaga, Bogor 16680,

Indonesia


Abstract

Segara Anakan lagoon in Indonesia receives a variety of contaminants from numerous and

various human activities. One of these was heavy metals, which were dangerous pollutants and

will accumulate in the environment. This study aimed to determine the heavy metals content

in sediment and water in Eastern Segara Anakan and its surrounding areas. Those data were

then scrutinized whether they were toxic to the aquatic biota. Sampling was conducted at six

observation stations every month. The heavy metals content were compared to the quality

standard (set out by CCME and ANZECC & ARMCANZ for sediment, and Decree of the Minister

of Environment Number 51 of 2004 for water). The heavy metals in sediments were below the

minimum limit (Pb (30.2; 50.0), Hg (0.13; 0.15), Cu (18.7; 65.0), all in mg/kg units), except Cu

that was once recorded exceeding the minimum limit during the observation. Other results,

Pb and Cu in water showed exceeding the quality standard (both were 0.008 mg/l). However,

it is still far from the lethal limit for various aquatic biota. Overall, the three heavy metals in

sediment were still safe for aquatic biota, but in water, only Hg can be clearly stated that it is

still safe.

Keywords: Heavy metals; Sediment; Water; Contamination.

A1-8


33

Bioacumulation of Non Essential Heavy Metals in Fish in Ir H Djuanda Reservoir,

Purwakarta

Lismining Pujiyani Astuti*, Andri Warsa, Amula Nurfiarini and Didik Wahju Hendro

Tjahjo

Research Institute for Fish Resources Enhancement. Jln Cilalawi No 1 Jatiluhur, Purwakarta, West Java,

Indonesia

*Corresponding author: Research Institute for Fish Resources Enhancement. Jln Cilalawi No 1 Jatiluhur,

Purwakarta, West Java, Indonesia

Email address: [email protected]

Abstract

Ir. H. Djuanda or Jatiluhur Reservoir dams the Citarum River and it is heavily polluted river. It

will affect the water quality and biota aquatic as fishes and benthos. The aim of the research

was to determine the bioaccumulation of non-essential heavy metals (Pb, Cd, Hg, As and Cr)

in fish. The research was conducted in July 2018. Water and sediment samples were taken from

3 stations representing parts of the Citarum River, Cilalawi River and floating net cages. Fish

samples was collected consist of wild fish and cultivated fish, namely goldfish, tilapia and

catfish. The results showed that the concentrations of Pb, Cd, Hg, As and Cr were not detected

in reservoir water. Heavy metals of Pb, Cd and Cr detected in the sediment were 2.56 - 6.12;

0.04 - 0.08; and 2,621 - 6,013 ppm respectively. Heavy metals detected in wild fish and

cultivated fish were only Cr, namely 0.039 - 0.205 ppm. The value of Bio-Concentration Factor

(BCF) is low so that the fish is less able to accumulate heavy metals and so it is safe for

consumption.

Keywords: Bioaccumulation; Heavy metal; Fish; Ir. H. Djuanda Reservoir.

A1-9

34

Pollution Source of Cileungsi-Cikeas-Bekasi River

Hefni Effendi1,2,*, Gatot Prayoga1, Andrian Rizaldy Azhar1, and Tri Permadi1

1) Environmental Research Center (ERC) IPB University, Darmaga, Bogor 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB

University, Darmaga, Bogor

*Corresponding author: Environmental Research Center (ERC) IPB University, Darmaga, Bogor;

Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB



Abstract

Sources of pollutants in the Cileungsi-Cikeas-Bekasi River Basin were inventoried through data

from the district's Environmental Agency which the three rivers cross. Pollutant sources were

also determined based on searches in the form of type, number, and location, using google

maps and google earth. The search results are mapped by applying ArcGIS. Aim of the

research was to determine land-based source of pollution entering the river. The types and

sources of pollutants vary greatly in terms of type, location and number. In the three river

basins, it is known that there were 413 industrial sectors, 538 restaurants, 457 housing

complexes, 80 hospitals, 92 hotels, 53 shopping centers, 37 livestock, 147 SMEs, and 59

domestic. The source of pollutants entering the Cikeas River was dominated by housing

complexes. The source of pollutants entering the Cileungsi River was dominated by industry.

Meanwhile, the sources of pollutants entering Bekasi River were mostly shopping centers,

hotels, hospitals and restaurants.

Keyword: Domestic; Catchment area; Land-based; Pollution source.

A1-10

35

Pollution Index of Cileungsi-Cikeas-Bekasi River

Hefni Effendi1,2,*, Gatot Prayoga1, Andrian Rizaldy Azhar1 and Tri Permadi1

1) Environmental Research Center (ERC) IPB University, Darmaga, Bogor 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB






Abstract

The water quality data of the Cileungsi-Cikeas-Bekasi river (survey results and monitoring data)

were analyzed using the Pollution Index (IP) according to the calculation guidelines listed in

Ministry of Environment Decree No. 115 of 2003 concerning Guidelines for Determining Water

Quality Status. The goal was to determine the status of the quality or level of river water

pollution. The quality standard used in the calculation refers to the class II quality standard

based on the West Java Governor Regulation No. 12 of 2013 concerning Water Quality

Standards and Water Pollution Control in Cimanuk River, Cilamaya River and Bekasi River. The

IP value of the Cileungsi River shows that the quality status of the Cileungsi River was in the

mildly polluted category, except in the upstream part (good condition). The status of the

Cikeas River water quality was still in good condition, except in the downstream segment

(lightly polluted). Based on data from the 2019 survey and monitoring of Environmental

Agency of Bekasi City in the second semester of 2018, the water quality status of Bekasi River

is a mildly polluted category in all segments.

Keyword: Pollution index; Mildly polluted; Lightly polluted; Downstream.

A1-11

36

Surface Runoff and Discharge of Bekasi River

Sri Malahayati Yusuf12, Setyo Pambudi Nugroho, Hefni Effendi1,3,*, Gatot Prayoga1 and

Tri Permadi1

1) Environmental Research Center (ERC) IPB University, Darmaga, Bogor 2) Department of Soil and Land Resources, Faculty of Agriculture, Darmaga, Bogor 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB






Abstract

The surface flow pattern of the Bekasi watersheds was analyzed using the Curve Numbers SCS

equation. Watershed conditions were analyzed from river flow discharge. Flow regime

coefficient is the ratio between the annual maximum discharge (Qmax) and minimum

discharge (Qmin). The results of the prediction of surface runoff volume in Bekasi River sub-

watershed varied from 0.04 to 44.74 mm. In the Bekasi River Sub-watershed there has been a

decrease in land area which is able to absorb water into the ground. On the other hand, the

percentage of developed land in the Bekasi River Sub-watershed was very high, reaching 83%

of the total area of the Sub-watershed. The lowest discharge value is 3.53 m3/s. The direction

for the management of Bekasi River can be approached by managing the decrease in surface

runoff around the river to increase more water infiltration, which is aimed at reducing the

maximum discharge and increasing the minimum discharge.

Keyword: Catchment area; Debit; Discharge; Surface run off.

A1-12

37

A Molecular Approach for Species Validation of Freshwater Shrimp from Lido

Lake, West Java

Agus Alim Hakim, Tyara Aprilani Khoirunnisa* and Ali Mashar


University (Bogor Agricultural University), Bogor 16680, West Java, Indonesia


Marine Sciences, IPB University (Bogor Agricultural University), Bogor 16680, West Java, Indonesia.


Abstract

The presence of invasive species is feared to threaten the existence of native species.

Macrobrachium sintengense as a local freshwater shrimp has been reported to the population

decline rapidly and is rarely found in the Lake Lido. A molecular identification approach

through DNA barcode is needed for validation species. This study aimed to validate

Macrobrachium sintengense based on16s rRNA gene marker in Lake Lido, West Java. The

specimens were collected from local fisherman in Lido Lake. Molecular analysis was conducted

in Laboratory of Aquatic Molecular Biology, Department of Aquatic Resources Management,

IPB University. The nucleotide sequence data were analysed using MEGA X software. Results

of BLAST-n analysis, two samples were identified as M. sintengense (JQ362451.1) with an

identification value of 98.88% and 99.05%. The genetic distance of both samples with M.

sintengense from GenBank is 0.009 – 0.0113. The 16s rRNA gene marker as a molecular

validation has strengthened the morphological identification of M. sintengense.

Keywords: 16s rRNA; Gene; Genetic distance; Identification; Macrobrachium sintengense.

A1-13

38

Improving Genetic Quality of Cultivated Aquatic Species under a Breeding

Program: Case Study of First Generation (G1) Population of Red Tilapia

(Oreochromis spp.)

Bambang Gunadi*, Adam Robisalmi and Lamanto

Research Institute for Fish Breeding. Jl. Raya 2 Sukamandi Pantura, Patokbeusi, Subang 41263, West

Java, Indonesia

*Corresponding author: Research Institute for Fish Breeding. Jl. Raya 2 Sukamandi Pantura, Patokbeusi,

Subang 41263, West Java, Indonesia


Abstract

A body weight based selection protocol is the most common practice in the genetic

improvement programs for aquaculture species. It might be one of the criteria to be

considered in aquatic resources management scheme. This experiment aimed to evaluate the

genetic enhancement of selected first-generation (G1) of red tilapia. Fish were bred under

fullsib mating design at hapa of 2x2 m2. The communal growing out of fingerlings was carried

out in earthen pond for 150 days. The stocking density of fingerlings were 7 fish per m2. Fish

were fed with commercial floating fish feed at a rate of 5-10% of biomass twice a day. The

results showed that the population of male and female of red tilapia in the first generation

(G1) grew faster than the previous generation (G0). The selection response values were 8.55%

and 4.44% for male and female populations, respectively. The heritability value in male and

female red tilapia populations is in the medium category with a value of 0.33 and 0.25,

respectively. The results showed that the breeding program increased genetic quality of fish

in term of body weight based growth in the first generation of red tilapia.

Keywords: Cultivated species; Growth; Selection response; Heritability; Red tilapia.

A1-14


39

Modern Methods of Genetic Sampling of Aquatic Organisms

Jana Marková1,*, Yonvitner2 and Jiří Patoka1

1) Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Kamýcká

129, 16500 Praha – Suchdol, Czech Republic 2) Department of Aquatic Resources Management, Faculty of Fisheries, IPB University and Centre for

Disaster Studies (CERDAS-IPB), 16680 Bogor, Indonesia

*Corresponding author: Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural

Resources, Kamýcká 129, 16500 Praha – Suchdol, Czech Republic


Abstract

Genetics is quickly developing scientific field. As the genetic methods are evolving, so are

sampling procedures. Originally, most of the sampling approaches were lethal for the subjects,

but with improving techniques, a small piece of tissue is enough for the analysis. Currently, it

is possible to obtain the sample without harming the subject. A sampling of aquatic organisms,

mainly those occurring in lower population densities, can be quite complicated. That opens

the way to possible biological invasions that could be detected sooner with modern methods.

One of such methods is environmental genetics which allows us to obtain genetic information

without direct contact with the target organisms. It is important to assess the advantages and

disadvantages when considering the best method for specific research questions in

accordance to specific field conditions.

Keywords: DNA; eDNA; Detection; Animals.

A1-15


40

Genetic Variation of CO1 Gene of Hippa admirabilis in Northern Sulawesi

Vinna Windy Putri1, Fahri Fahri2, Yusli Wardiatno3,4 and Achmad Farajallah1,*

1) Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Kampus IPB

Dramaga, Bogor 16680, Indonesia 2) Department of Biology, Faculty of Mathematics and Natural Sciences, Tadulako University, Jalan

Soekarno-Hatta, Tondo, Palu, 94117, Central Sulawesi, Indonesia 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University, Kampus IPB Dramaga, Bogor 16680, Indonesia 4) Environmental Research Center, IPB University, Kampus IPB Dramaga, Bogor 16680, Indonesia

*Corresponding author: Department of Biology, Faculty of Mathematics and Natural Sciences, IPB

University, Kampus IPB Dramaga, Bogor 16680, Indonesia


Abstract

Hippoid crab is crustacean species inhabiting sandy beach in tropical and subtropical area.

There are two family reported Hippidae and Albunidae in Indonesia, which comprises of

several species. One of them is Hippa admirabilis. This species is only reported in Sulawesi

Island in Indonesia. The aim of this study was to elucidate genetic variation of Hippa admirabilis

in Northern Sulawesi. Ten specimens were collected from northern part of Sulawesi in 2016

which is Ogotumubu, Province of Central Sulawesi and Gorontalo, Province of Gorontalo. The

DNA from muscle tissues was extracted from pereiopod of Hippa addmirabilis. The length of

amplified the upper part CO1 gene is 591 bp. The obtained sequences are compared to our

previous work in Genebank which is Hippa admirabilis from Banggai, Sulawesi. The phylogeny

tree was constructed to phylogeographic scenario based on Neighbor-Joining methods with

Kimura 2- parameters models using MEGA software. The haplotype analysis was performed

using DNASP software. Five haplotypes of Hippa admirabilis was discovered in this study. There

is one shared haplotype group with ten individual from Gorontalo and Ogotumubu. The rest

haplotype is exclusive belong to each location. The nucleotide variation between Gorontalo,

Ogotumubu and Banggai was 8 nucleotide base.

Keyword: Genetic Variation; Haplotype; Hippoid Crab.

A1-16


41

Characterization of Whole Mitochondrial Genome Amyda Cartilaginea from

Dharmasraya West Sumatera

Anggi Nurhardiyanti Munawaroh1, Lora Purnamasari2 and Achmad Farajallah3,*

1) Animal Biosciences Study Program (BSH) Graduate School, Bogor Agricultural University, Bogor, West

Java, Indonesia. 2) Department of Biology Education, Faculty of Education and Teacher Training, Universitas Islam Negeri

Raden Intan Lampung, Indonesia. 3) Department of Biology, Faculty of Mathematics and Science, Bogor Agricultural University, Bogor,

West Java, Indonesia.

*Corresponding author: Department of Biology, Faculty of Mathematics and Science, Bogor Agricultural

University, Kampus IPB Darmaga Jl. Agathis, Bogor, 16680, Indonesia.


Abstract

Previous data of the whole mitochondrial genome of soft-shelled turtle that it’s available in a

public repository: Dogania subplana, Pelochelys cantorii, Chitra indica, Trionyx triunguis,

Apalone spinifera, Rafetus swinhoei, and Pelodiscus sinensis. The first two species have natural

distribution in Indonesia. Amyda cartilaginea is a species of soft-shelled turtle that is abundant

in Indonesia. However, the whole mitochondrial genome data of A. cartilaginea is not available.

We reported almost complete mitochondrial genome of A. cartilaginea that caught from

Batanghari River in Dharmasraya District, West Sumatera. The amplification of mitochondrial

DNA fragments was performed using several primers designed following mitochondrial gene

organization and sequence of D. subplana (Accession No AF366350). We sequenced half of

the whole mitochondrial genome (7757 bp, 48%). The gene organization of the mitochondrial

genome of A. cartilaginea was identic with D. subplana and P. cantorii. The phylogenetic tree

analysis based on 16SrRNA revealed that the position of A. cartilaginea clustered with another

soft-shelled turtle (supported by 98% of bootstrap value). Further study is needed to make a

complete sequence of the mitochondrial genome of A. cartilaginea, with special focus to the

control region to be applied to sustainable wild population management.

Keywords: Soft-shelled turtle; A. cartilaginea; Mitochondrial DNA; 16SrRNA.

A1-17

42

Morphological and Growth Responses of Enhalus acoroides Seedlings under

Carbondioxide Enrichment: An Experimental Assesment

Aditya Hikmat Nugraha 1,*, Aminatul Zahra2 and Said Almahdi1

1) Department of Marine Science, Faculty of Marine Science and Fisheries, Raja Ali Haji Maritime

University (UMRAH), Jl. Politeknik, Kampus UMRAH Senggarang, Tanjungpinang 29111 2) Department of Aquacultue, Faculty of Marine Science and Fisheries, Raja Ali Haji Maritime University

(UMRAH), Jl. Politeknik, Kampus UMRAH Senggarang, Tanjungpinang 29111

*Corresponding author: Department of Marine Science, Faculty of Marine Science and Fisheries, Raja

Ali Haji Maritime University (UMRAH), Jl. Politeknik, Kampus UMRAH Senggarang, Tanjungpinang

29111


Abstract

It is predicted that the concentration of carbon dioxide in the ocean will continue to increase.

This phenomenon certainly has an impact on the sustainability of the marine ecosystem,

including the seagrass ecosystem. This study aims to determine the effect of carbon dioxide

on the morphometrics and growth of E. acoroides seedling. This study was an experimental

study where the seeds from the fruit were grown in a controlled environment for two months.

There are two treatments, first treatment with the addition of carbon dioxide and without the

addition of carbon dioxide. The results of this study indicate that there are significant result

from the two treatments given. Seagrass seeds that grow on treatment with carbon dioxide

gas generally have shorter morphological characteristics as well as their growth.

Keywords: Carbondioxide; E. acoroides; Growth; Morphological; Seed.

B1-1


43

Diversity of Riparian Plants of Black Water Ecosystem in the Sebangau River,

Central Kalimantan, Indonesia

Lukas1, Belinda Hastari2, Ardianor3 and Sulmin Gumiri4,*

1) Environmental Science Doctoral Student Program, University of Palangka Raya University 2) Dept. of Forestry, Faculty of Agriculture, University of Palangka Raya 3) Dept. Of Aquaculture, Faculty of Agriculture, University of Palangka Raya 4) Graduate Program, University of Palangka Raya

*Corresponding author: Graduate Program, University of Palangka Raya


Abstract

The riparian vegetation that grows on the banks of the Sebangau river plays an important role

in supporting the composition of the biota and the quality of river water. This study aims to

analyze the condition of riparian vegetation in the Sebangau river. Sampling was carried out

in March 2020 using the quadrant method, 1 x 1 m plots for herb and grass habitus, the plots

size 5 x 5 m for shrub habitus, copses, lianas, and 10 x 10 m plots for tree habitus. The data

analyzed were species composition, diversity and species dominance. The results showed that

the tree composition at the study location was characterized by the herb and grass habitus

where there were herbs and grass there were 4 families (214 individuals); in shrubs, copsesand

lianas there are 3 families (135 individuals); and in tree habitus there are 2 families (282

individuals). The herb and grass habitus were dominated by Hydrilla verticillata species, shrub,

copse and liana habitus was dominated by Pandanus helicopus species, and the dominant

species of tree habitus was Shorea balangeran. The diversity index was low for habitus (tree

habitus) to moderate (herb and grass habitus; shrub, copse and liana habitus), but with

abundant numbers for the family and number of species.

Keywords: Riparian; Number of species; Diversity; Dominance; Sebangau River.

B1-2

44

Habitat Preference of Longtail Shad (Tenualosa macrura) in the Water of

Bengkalis, Meranti Island and Siak Regencies, Riau Province

Vivin Seygita1,*, Sulistiono2, Cecep Kusmana3 and Gatot Yulianto2

1) Study Program of Natural Resources and Environmental Management Science, Postgraduate School,

IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang Jl. Raya Padjajaran Bogor

16151. Kota Bogor. Indonesia. 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia. 3) Department of Silviculture, Faculty of Forestry, IPB University, Bogor 16680, Indonesia

*Corresponding author: 1Study Program of Natural Resources and Environmental Management Science,

Postgraduate School, IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang Jl. Raya

Padjajaran Bogor 16151. Kota Bogor. Indonesia.


Abstrack

The waters of Bengkalis (as the estuary of Siak River) in Meranti and Siak Regencies of Riau

Province is known as longtail shad (Tenualosa macrura) spawning area. This study aims to

describe the condition of the waters of the fish spawning habitat. Sampling was conducted for

3 months from September to November 2019. The physical, chemical and biological

parameters were observed i.e. temperature, depth and transparency, salinity, TSS, pH, DO,

nitrate (NO3), phosphate (PO4), BOD, lead (Pb), and mercury (Hg), plankton abundance and

diversity. The result showed the waters temperatures, depth, transparency, salinity, TSS, pH,

and DO varied 26.7-30.3°C, 4-30 m, 0.27-0.835 m, 25-30 ppt, < 3 - 88 mg/l, 7, and 5.9-7.9

mg/l, respectively. The nitrate, phosphate, BOD, Pb, and Hg were 0.617-2.196 mg/l, 0.006-

1.666 mg/l, 0.80-11 mg/l, 0.002-0.094 mg/l and <1 mg/l, respectively. The most common

genera of phytoplankton is Trichodesmium sp (37.293 to 596.688 cells/m³), while the most

abundant zooplankton is Tintinnopsis sp (8.421-54.135 cells/m³). According to the study, it was

known that the water condition of the fish habitat was quite good. However, the nitrate and

phosphate in the waters passed the quality standard threshold for fisheries.

Keywords: Water condition; Spawning ground; Conservation.

B1-3


45

The Effect of Garlic Allium sativum Addition in Feed to the Growth

Performance and Immune Response of Tilapia Oreochromis niloticus

Lies Setijaningsih*, Imam Taufik and Mulyasari

Research Institute of Freshwater Aquaculture and Fisheries Extention. Jl. Sempur No. 1, Bogor 16154,

West Java, Indonesia

*Correspending author: Research Institute of Freshwater Aquaculture and Fisheries Extention. Jl.

Sempur No. 1, Bogor 16154, West Java, Indonesia


Abstract

Immunostimulants are an alternative option in increasing growth performance and disease

control through increasing fish immunity. Garlic is a medicinal plant known to act as an

immunostimulant. Research data collection was carried out for 30 days. Fish reared using

aquarium, using an aeration system with stocking density of 20 fish/aquarium. The research

method used was a laboratory experimental, using a completely randomized design with three

replication. The treatments used were the addition of garlic extract each at a dose of A. 0%

without garlic in the feed (control); B. 1%; C. 3% and D. 5% garlic in feed. The results showed

that these treatments had a significantly different effect on absolute growth, daily growth rate

and survival, but had the same effect on health conditions. Treatment with the addition of 1%

dose of garlic extract in the feed showed the highest value in weight gain (17.75±0.48 g), daily

growth rate (0.42±0.01 g/day), survival (86.67±0.71%) and non-specific immune response,

namely leukocytes 4.8 x 10 cells/mm3, erythrocytes 4.72 x106 cells/mm3 and hemoglobin 6.04

90 G%. The conclusion is adding garlic extract to feed at a dose of 1% or 10 g/kg of feed

resulted in the highest growth and survival rates.

Keywords: Immunostimulant; Oreochromis niloticus; Allium sativum.

B1-4

46

Biodiversity and Community Structure of Phytoplankton in Reservat and

Protected Area of Mahseer (Tor spp.) Habitats in Bungo and Kerinci Regencies,

Jambi Province, Indonesia

Febri Ria Safitri1, Sulistiono1,*, Sigid Hariyadi1 and Asmadi2


University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Marine Affairs and Fisheries Office of Jambi Province, Jl. MT. Haryono, No. 9, Telanai Pura, Pematang

Sulur, Telanaipura, Jambi 36129, Indonesia



16680, Indonesia.


Abstract

Mahseer (Tor spp.) conservation efforts require information relating to habitat characteristics

including phytoplankton biodiversity and community structure as a biological characteristics.

This study aims to evaluate the phytoplankton diversity and community structure in the

mahseer habitat, namely reservat and protection areas in Muara Bungo and Kerinci Districts of

Jambi Province. This study was conducted in four times samplings i.e. December 2018, April

2019, July 2019, and October 2019, at three sites of protected area, namely in Lubuk Alai,

Senamat River, and the protected area of Tarutung Village. Furthermore, the data at the three

sites were compared with data outside the protected area. Biological indices of the

phytoplankton were calculated. The results showed that the mahseer habitat had a high

diversity of phytoplankton. The results showed that the mahseer habitat had 8 genera of

phytoplankton diversity, dominated by the Bacillariophyceae group, especially Synedra sp. with

a dominance rate of more than 60% at each station. Based on the calculation results, it can be

seen that the diversity index ranged from 0.95 to 1.18, the evenness index ranged from 0.40

to 0.82, and the dominance index ranged from 0.39-0.43 in protected areas.

Keywords: Conservation; Masheer; Phytoplankton.

B1- 5


47

Tor sp. tracking using Radiotelemetry in Batang Toru River, North Sumatera

Province, Indonesia

Totok Hestirianoto1, Sulistiono2, Charles Simanjuntak2, MF Rahardjo2, Dadang

Syafruddin3, Thomas Nugroho4 and Agus J. Ismanto5


University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Department of Aquaculture, Faculty of Fisheries and Marine Sciences, IPB University (Bogor

Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 4) Department of Fisheries Resources Utilization, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 5) Department of Environment, PT North Sumatera Hydro Energy, Jl. Darmawangsa VII No 2, Jakarta,

12160, Indonesia



16680, Indonesia.

E-mail address: [email protected] (Author); [email protected] (Co. Author)

Abstract

Four locally inhabiting Tor sp. from Batang Toru River of North Sumatera Province, Indonesia

had been tracked using Radio Telemetry technology in 2019. The Radio pinger was SRX-800

series from Lotek Wireless Canada. The Radio pinger was 1 inch length and 5 mm in diameter,

dipped in Fibreglass resin with 20 cm antena cable. The radio frequency was transmitted on

138-176 MHz. Througha simple surgery the pinger was inserted into stomach cavity. The Tor

was relatively large (about 1 kg) and 30 cm total body length. The antena was remain left

outside the body. After four months of observation, the pinging sound was still able to be

heard, and the swimming range of the fish was easy to be Pinpoint. Most of the fish was

hidding under the rock boulder or in the river basin. The longest detected swimming distant

was five kilometer. Thus, it can be concluded that the Radio-Pinger SRX-800 Lotek is able to

be used to follow the fish swimming area in a large river like Batang Toru.

Keywords: Fish tracking; Radio telemetry.

B1-6

48

Evidence of Residential Area of Whale Sharks in Saleh Bay, West Nusa Tenggara

Muhammad Fadil Farid1,*, Sigid Hariyadi2, Mohammad Mukhlis Kamal2 and Handoko

Adi Susanto2

1) Graduate Student of the Department of Aquatic Resources Management, Faculty of Fisheries and

Marine Sciences, IPB University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga,

Bogor 16680, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia.

*Corresponding author: Graduate Student of the Department of Aquatic Resources Management,

Faculty of Fisheries and Marine Sciences, IPB University (Bogor Agricultural University), Jl. Agatis,

Kampus IPB Dramaga, Bogor 16680, Indonesia


Abstract

Saleh Bay is one of the locations where whale sharks (Rhincodon typus) occur in Indonesia and

can be found all year round. Whale sharks broadly, distributed throughout tropical and sub-

tropical waters of the world’s oceans. Immature male <7m while female <10 mostly coastal

aggregation. Based on the International Whale Shark Conference in Australia in 2019, Saleh

Bay is a residential area for whale sharks, therefore this study aims to prove the residential area

of the whale shark in Saleh Bay. This study was conducted from November 2019 to January

2020, which is a transition from the East to West seasons. At the beginning of the transition

season, the concentration of emergence is in the eastern part of the bay, then when entering

the west season the concentration is in the western part. The Photo-ID data obtained were

compared with CI's Saleh Bay Whale Shark ID Calatog data last uptade April 2020. Surface

temperature was measured directly in the range of 29-320C, data for chlorophyll-a were taken

from marine.copernicus.eu and bathymetry from cmap.ihms.us then interpolated using QGIS

3.10 software. 24 Photo-IDs were obtained from 39 whale sharks, 23 of which were males while

1 female and there were 6 new individuals from June 2019 to April 2020. The size of the whale

sharks recorded in this study ranged from 2.5 to 7m (mean 4.57) (juvenile).

Keywords: Whale shark; Photo identification; Ecology; Saleh bay.

B1-7

49

Code of Conduct Enjoying the Appearance of Halmahera’s Endemic Walking

Shark (Hemiscyllium halmahera) in Ternate Coastal Waters

Mohammad Mukhlis Kamal1,*, Zahirah Kartini1, Hawis H Madduppa2, Adityawan

Ahmad3 and Faisal Rumagia4

1) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB

University 2) Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB

University 3) Aquatic Resource Management Study Program, Faculty of Fisheries and Marine Science, Khairun

University, Ternate, Indonesia 4) Study Program of Fisheries Resources Utilization, Faculty of Fishery and Marine, Khairun University,

Ternate, Indonesia


Marine Science, IPB University, Kampus IPB Dramaga – Bogor 16680

E-mail address: [email protected] (C. Author)

Abstract

Halmahera walking shark (Hemiscyllium halmahera) is endemic to North Maluku and adjacent

waters where a growing marine tourism in this region has been partly contributed by the

existence of this elasmobranch. The research aims was to explore walking shark’s behavioral

response to propose a code of conduct respecting animals welfare-based interaction between

sharks and visitors was proposed. Three sites characterized by coral reefs and seagrass habitats

of Ternate waters namely Falajawa, Kayu Merah, and Fitu were selected for walking shark

observation at nighttime from April to May 2018. On its appearance, encounters number,

behavior, and its response to visitors was recorded. At visitor site, interaction between walking

shark and visitors were documented based on questionnaires answer. The results showed that

walking sharks abundance was highest at Fitu demonstrating a higher affinity to healthier coral

reefs and segrass beds. The code of conduct proposes the sighting distance is 1–2 meters

away with maximum three divers/snorkelers number. Direct light especially on eyes, touching,

feeding, and lifting it out of water are strictly disallow. Code of conduct is recommended to

support conservation and sustainability of Halmahera walking shark.

Keywords: Hemiscyllium halmahera; Behavior; Visitors-shark interaction.

B1-8


50

Assessing Bali Sardine Stock Status Using Real-Time Electronic Catch Landing

Data Recorder and Time Series Catch Database

Mohamad Natsir1, 2, *, Regifiji Anggawangsa1, and Masaaki Wada2

1) Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resources,

Ministry of Marine Affairs and Fisheries. Gedung BRSDMKP 2, Jl. Pasir Putih II Ancol Timur, Jakarta

Utara, Jakarta 14430, Indonesia 2) School of System Information Science, Future University Hakodate, 116-2 Kamedanakano, Hakodate,

Hokkaido 041-8655, Japan

*Corresponding author: School of System Information Science, Future University Hakodate, 116-2

Kamedanakano, Hakodate, Hokkaido 041-8655, Japan

E-mail address: [email protected], [email protected]

Abstract

Digitalization of capture fisheries data becomes inevitable in the present and future time. The

use of Information and Communication Technology (ICT) in the fisheries sector is widely

applied, creating a bigger and better database. Development of the database offers the

utilization of Big Data and Decision Support System (DSS) to provide robust analysis, simulate

better scenarios, formulate recommendations, and propose management measures to support

successful fisheries management in achieving sustainability and profitability objectives. Bali

Strait sardine stock estimation has been conducted several times through several approaches

and techniques. This study will combine the available times series catch and effort data from

published statistic data and publications with real-time data from electronic catch monitoring

in Muncar and Pengambengan fishing port. The sardine stock and fishery status estimation

will be analyzed using a stock-production model incorporating covariates (ASPIC), a

Nonequilibrium surplus-production model to data on fish catch and relative abundance.

Another purpose of this study is to increase stakeholder participation through a smart

dashboard system that enables automatic data analysis, faster recommendations distribution,

and engagement. Increased stakeholders participatory in fisheries management will be a

crucial factor in achieving operational and successful fisheries management.

Keywords: Sardine fishery; Digital diary; Bali Strait; Small-scale.

B1-9



51

Length-Weight Relationships and Sex Ratio of Selaroides leptolepis, Cuvier

1833 in Tomini Bay, Indonesia

Nuralim Pasisingi1,*, Tyas Dita Pramesthy2 and Ahmad Musyali1

1) Faculty of Fisheries and Marine Sciences, Gorontalo State University, Jl. Jendral Sudirman No 6,

Kecamatan Kota Tengah, Kota Gorontalo, Gorontalo 96128, Indonesia 2) Politeknik Kelautan dan Perikanan Dumai. Jl. Wan Amir No 1, Kelurahan Pangkalan Sesai, Kecamatan

Dumai Barat, Kota Dumai, Riau 28826, Indonesia.

*Corresponding author: Faculty of Fisheries and Marine Sciences, Gorontalo State University, Jl. Jendral

Sudirman No 6, Kecamatan Kota Tengah, Kota Gorontalo, Gorontalo 96128, Indonesia


Abstract

Selaroides leptolepis is one of the most common pelagic fish which has high market demand

in Gorontalo. This study aims to provide growth patterns and sex ratio of S. leptolepis male

and female inhabiting Tomini Bay, Indonesia. Sampling was conducted monthly for six months

from April 2020 to September 2020. A sample of 1168 was taken randomly from Tomini Bay

fishers who landed their catch at Kampung Tenda Fish Landing Site, Gorontalo City. The length

and weight of fish were measured using a ruler (nearest 1 mm) and an analytical scale (nearest

0.01 g), separately. The results showed that almost all captured exhibited positive allometric

growth (b > 3) and tended to be plump. Length-Weight Relationships (LWRs) formula for the

male was W = 4.06 L0.0573 (r = 0.99), while for the female was W = 0.000002 L3.3324 (r = 0.98).

The sex ratio between males and females during the sampling periods was 1: 1.17, which

means the population proportion is not balanced. Such data are essential for establishing

fisheries management in Tomini Bay.

Keywords: Selaroides; Allometric; Tomini; Sex Ratio; Indonesia.

B1-10

52

Length Base Spawning Potential Ratio of Indian Scad (Decapterus russelli,

Rupell, 1928) in South China Sea

Asep Priatna1,*, Mennofatria Boer2, Rahmat Kurnia2, and Yonvitner2

1) Research Institute for Marine Fisheries, Ministry of Marine Affairs and Fisheries 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB


*Corresponding author: Research Institute for Marine Fisheries, Ministry of Marine Affairs and

Fisheries, Jl. Raya Bogor Km.47 Cibinong, Bogor, 16610, Indonesia.


Abstract

The spawning potential ratio (SPR) could be used to investigate stock indicator for data-poor

fisheries, to inform management decision. This study was aimed to assess SPR based on length

frequency distribution as biological reference point for stock status of Indian scad (Decapterus

russelli) in South China Sea. The length frequency data of were collected from 2015 to 2019 in

as monthly sampling. Aproximately, 250 fish each month were measured in fork length. Fish

samples were obtained from catch of purse seiner which landed at Pemangkat fishing port.

The SPR was analyzed using LBSPR method and considering the uncertainties. We found that

the growth coefficient (K), length asymptotic (L∞) and natural mortality (M) were 0.83 year-1,

20.49 cm of Fork length and 2.2 respectively. Length at maturity in 50% level (L50) was 17.4 cm

and 95% level (L95) was 20.0 cm. Based on these parameters and determining uncertainties

resulted the stochastic SPR is mostly met to the threshold of reference point at level 60%. It

means that stock status of D. russelli is at the optimum level.

Keywords: Decapterus russelli; Indian Scad; Life history parameters; Spawning potential ratio;

South China Sea.

B1-11


53

Length Based-Spawning Potential Ratio (LB-SPR), on Exploited Demersal Stock

(Priachantus tayenus) in Small Scale Fisheries, Sunda Strait

Yonvitner1,2,*, Mennofatria Boer1, Rahmat Kurnia1 and Surya Gentha Akmal3

1) Aquatic resources management (MSP)-Faculty of Fisheries and Marine Science. IPB- University 2) Centre for Disaster Studies (CERDAS), IPB University 3) Doctoral Program at Zoology and Fisheries Department, Faculty of Agrobiology, Food and Natural

Resources, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Prague - Suchdol, Czech

Republic


Marine Science, IPB University, Kampus IPB Dramaga – Bogor 16680.


Abstract

Recent year, Length based-Spawning potential ratio (SPR) approach are commonly use at

fisheries data-poor management in worldwide. This approach is more familiar and easy used

by researchers and managers to find the best ways in fisheries management. Therefor we try

to apply this technique for demersal exploited stock (Priachanthus tayenus) in Sunda Strait.

The length data were collected in 2013, 2015, 2016, and 2019 by a research team from Labuan

landing port. Data analysis consists of length frequency, size at maturity, selectivity, and SPR

by using software from barefootecologist.com.au/lbspr. Results have shown asymptotic

Length 320.25 mm, length at maturity (Lm50) 201.4 mm, von Bertalanffy growth rate 0.136,

and ratio M/k 1.56. The SPR of P. tayenus range from 6-36% (average 16%), and it's relatively

under 40% and potentially unsustainable. The length at selectivity 50 percent (SL50) ranges

from 154-261.36 mm and length selectivity at 95% (SL95) from 179-348.48 mm. At the period

2013-2019, monitoring activity SPR relatively dynamic sometimes decrease and increases at a

low level every year, and first at breeding (50% and 95%) also decreases. It means the gonadal

maturity of Priachantus tayenus in Sunda Strait more quickly and dominant by young fish

stock. It is necessary to prohibit size fish capture in order to increase the spawning potential

ratio (spr).

Keywords: Priachanthus tayenus; SPR (Spawning potential ratio); Length; Sunda Strait; Data

poor management.

B1-12

54

Exploring Quality of Small Island Socio-Ecological Systems in the Saobi Island

Agus Romadhon1,*, Dyah Ayu Sulistyo Rini2 and Fery Kurniawan2

1) Department of Marine Science, Faculty of Agriculture, (Madura Trunojoyo University), Jl. Raya Kamal,

PO. BOX 02 Kamal, Kampus UTM, Madura 69162, Indonesia 2) Department of Marine Science, Faculty of Agriculture, (Madura Trunojoyo University), Jl. Raya Kamal,

PO. BOX 02 Kamal, Kampus UTM, Madura 69162, Indonesia 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB


*Corresponding author: Bhayangkara Panidi No 35 Bangkalan, Madura 69112


Abstract

Small islands are essential habitats for many endemic species. However, global conservation

assessments are too coarse to characterize areas of intense human influence or landscape

connectivity at a proper resolution for conservation planning on most islands. Our goal was to

design a conservation area on a small island. Using the Saobi island as a case study, our specific

objectives were to (1) develop a map of marine resources, and (2) characterized the status and

condition of marine resources. We used GIS (Geographic Information System) as a tool to

develop marine resources maps and Socio-Ecological System (SES) from Burkhard et al. (2012)

as tool analysis to characterize the status and condition of marine resources. We found that

Saobi island has two important ecosystems (coral reef and sandy beach), which they in good

condition. Saobi island possesses a compact network of natural areas, with a few patches in

the interior coral critical to structural connectivity.

Keywords: Small island; SES; Saobi.

B1-13

55

Socio-Ecological System Perspective of Seagrass Ecosystem in Wakatobi

Nurul Dhewani Mirah Sjafrie1,*, Puji Rahmadi1, Fery Kurniawan2, 3, Triyono1 and Indarto

Happy Supriyadi1

1) Research Centre for Oceanography, Indonesian Institute for Sciences, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural Institute), Indonesia 3) Center for Coastal and Marine Resources Studies, IPB University (Bogor Agricultural Institute),

Indonesia

*Corresponding author: Research Centre for Oceanography, Indonesian Institute for Sciences,

Indonesia


Abstract

The perspective of the socio-ecological system (SES) is widely used to identify, and explain the

relationship between seagrass ecosystems, and its dependent community in the Regency of

Wakatobi, Southeast Sulawesi Province. These relationships can be recognized when humans,

as a dependent community, are utilizing the seagrass ecosystems benefit. Further, these

utilization patterns can be used as a basis for managing the seagrass ecosystems itself.

Therefore this study was conducted to identify and map the relationship between seagrass

ecosystems, and its communities in Wangi-wangi Island, Kaledupa Island and Tomia Island.

The data were collected in June - July 2019 through observation, focused group discussions

and interviews with 59 respondents. The relationship between the seagrass ecosystem, and its

community was analyzed descriptively. The results show that the SES built a simple pattern.

Seagrass ecosystems were used as the main source of daily food for island people. Seagrass

products were traded limited inside the island. Resource users, infrastructure providers, as well

as public infrastructure, formed a short-chain. In order to enhance the socio-ecological system

established, it is important to preserve the condition of seagrass ecosystems by ensuring the

implementation of existing legal rules and local wisdom.

Keywords: Seagrass; SES; Daily food-source; Wakatobi.

B1-14

56

Spatial Analysis of Ecosystem Services of Bima Bay Region, West Nusa

Tenggara, Indonesia

Munawar1,2,*, Luky Adrianto3,4, Mennofatria Boer3 and Zulhamsyah Imran3

1) Study Program for Coastal and Marine Resources Management, Graduated Program, IPB University,

Dramaga Bogor, Indonesia 2) Planning Bureau, Secretariat General, Ministry of Marine Affairs and Fisheries, Indonesia 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University, Campus, Dramaga Bogor, Indonesia 4) Coastal and Ocean Resource Study Center, IPB Campus, Dramaga Bogor, Indonesia.

*Corresponding author: Study Program for Coastal and Marine Resources Management, Graduated

Program, IPB University, Dramaga Bogor, Indonesia


Abstract

Bima Bay, as an ecosystem, is very interesting to understand in its relation between the

changes in land use/land cover with ecosystem services. The purpose of this study was to

determine the condition of ecosystem services in Bima Bay. The data analysis methods used

were: field surveys, independent interviews with stakeholders, and spatial information sourced

from relevant documents. This study aimed to map the characteristics of ecosystem services

in Bima Bay. The results showed that the highest ecological integrity index value was found

in West Rasanae Sub-District at 0.5592 and the lowest integrity value was in Soromandi Sub-

District at 0.3051. The highest value of the inventory service index was found in West Rasanae

Sub-District at 0.1526 and the lowest was Soromandi Sub-District at 0.0981. The highest index

value for regulating services was found in West Rasanae Sub-District at 0.3333 and the lowest

was Soromandi Sub-District at 0.2119. The highest index value for cultural services was 0.5143

and the lowest was Soromandi Sub-District at 0.2143. The index value of the Bima Bay

ecosystem services budgets was -1.8138, this showed that human demand for ecosystem

goods and services was greater than the ability to provide them (supply<demand).

Keywords: Ecosystem services; Ecological integrity; Budgets.

B1-15

57

Stakeholders Role in Economy Creative Development Based on Maritime

Culture in Alor Regency

Christina Yuliaty*, Nendah Kurniasari, Riesti Triyanti and Armen Zulham

Research Center for Marine and Fisheries Socio Economics. Jl. Pasir Putih I. Ancol Timur- Jakarta

*Corresponding author: Research Center for Marine and Fisheries Socio Economics. Jl. Pasir Putih I.

Ancol Timur- Jakarta


Abstract

Culture-based creative economy development policies are needed in order to have a broader

impact on the acceptance of benefits, namely the community, local government and the

central government. This policy requires the support of various stakeholders in accordance

with their roles and functions. This study aims to examine the roles and influences of each

stakeholder in the development of a creative economy based on maritime culture in Alor

Regency. Stakeholders consist of government, private, community and non-governmental

organizations. The analytical method used is descriptive analysis and stakeholder analysis

using the mactor program (Matrix of Alliances and Conflicts: Tactics, Objectives and

Recommendations). The sampling technique used the snowball sampling method. The results

showed that the Industries Extentions, Cooperatives Small and Medium Enterprises Extentions,

DPMD, Fisheries Extensions, District Tourism Office, Kabola Fishermen Communication Forum

and Village Government as the main stakeholder who have an important role in the

formulation of maritime culture-based creative economy development policies in Alor

Regency. The research states that there are no stakeholders who oppose the development of

the creative economy in Alor Regency, but in order for the creative economy development

based on maritime culture to be achieved there must be collaboration between stakeholders

who have high power and interests and also increase the role of academics as part of the triple

helix.

Keywords: Maritime tourism; Maritime culture; Alor; Stakeholders analysis; Tourism.

B1-16


58

Sustainable Challenges in Developing Marine-Based Adventure Tourism in

Ambon

Muhammad Rizali Umarella, Muhammad Baiquni, Sigit Heru Murti and Muh Aris

Marfai*

Faculty of Geography, Universitas Gadjah Mada, Bulaksumur, Yogyakarta, Indonesia

*Corresponding author: Faculty of Geography, Universitas Gadjah Mada, Bulaksumur, Yogyakarta,

Indonesia


Abstract

There has been growing demands of nature-based tourism involving diverse activities. Marine-

based adventure tourism is one of it, which is based on a unique combination at the marine

biodiversity, scenic beauty, and sea activities such as sea kayaking and diving. Its rapid growth

brings possibilities on the destruction on the natural resources because in most cases, any type

of tourism industry only concentrates on the economy development. Sustainable marine-

based adventure tourism should balance with many local factors such ecology, society, culture,

and economy, focusing on the quality of nature. The unwisely planned tourism development

can gradually destroy its natural environmental resources on which it depends. In this paper,

the authors describe the possible effects of marine based-adventure tourism development on

natural resources along with aquatic pollution challenges and finally, how this tourism can

contribute to environmental conservation in Ambon, Maluku.

Keywords: Marine-based adventure tourism; Sustainable tourism; Aquatic pollution.

B1-17


59

Potential Carrying Capacity of Marine Ecotourism in Sub Region III of Thousand

Island’s Marine National Park

Fredinan Yulianda1,* and Amalia Febryane Adhani Mazaya2


University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Program Study of Tourism, Ambarrukmo Tourism Institute, Yogyakarta, Jl. Ahmad Yani Ring Road

Timur, Banguntapan, Bantul, Yogyakarta



16680, Indonesia.


Abstract

Thousand Island’s Marine National Park (TNKpS) is one of the nature conservation area in

Indonesia, located in North Jakarta. High potential of the resources in this area makes this

location favorited to visit by many tourists and causes the damage to be heavier. Before

manage by limiting number of tourists, carrying capacity potential analysis is carried out to

determine maximum number of tourists who can conduct marine ecotourism in TNKpS and to

control the impacts of this activities. The purpose of this study was to analyze potential carrying

capacity and its allocation of marine tourists. Method that used in this research is tourism

suitability, carrying capacity and GIS analysis. Marine ecotourism in sub-region III TNKpS is

divided into two activities based on the distribution of coral reef resources utilization;

snorkeling and diving. The area of coral reefs for snorkeling is 1,008,433.24 m2, while for diving

is 2,766,593.80 m2 which are spreading in the waters of sub-region III TNKpS. With this area,

potential carrying capacity for snorkeling is 3,752 people/day, for diving is 9,814 people/day.

Marine ecotourism in sub-region III TNKpS still has potential to be developed by applying

carrying capacity principle and setting the allocation of spot tourism pertrip perday.

Keywords: Carrying capacity; Marine ecotourism; Thousand Island’s Marine Park.

B1-18


60

The Condition of Coral Reef Ecosystem in Natuna Island

Try Febrianto1, Rikoh Manogar Siringoringo2, Risandi Dwirama Putra1,*, Dedy

Kurniawan3, Ni Wayan Purnamsari2, Jumsurizal4 and Muhammad Abrar2

1) Department of Marine Science, Faculty of Marine Science and Fisheries, Maritime Raja Ali Haji of

University. Jl. Politeknik Senggarang, 29111 Tanjungpinang, Riau Islands 2) Research Centre for Oceanography, Indonesia Institute of Science, Jl. Pasir Putih I Ancol Timur, 11048

Jakarta – Indonesia 3) Department of Marine Resources Management, Faculty of Marine Science and Fisheries, Maritime

Raja Ali haji of University. Jl. Politeknik Senggarang, 29111 Tanjungpinang, Riau Islands 4) Department of Aquatic Product Technology, Faculty of Marine Science and Fisheries, Maritime Raja

Ali haji of University. Jl. Politeknik Senggarang, 29111 Tanjungpinang, Riau Islands

*Corresponding author: Marine Science Department, Faculty of Marine Science and Fisheries, Maritime

Raja Ali haji of University. Jl. Politeknik Senggarang, 29111 Tanjungpinang, Riau Islands


Abstract

Three groups of marine biotas in the coral reef ecosystem (coral, reef fish, and megabenthos)

were analysed to determine the condition of coral reefs ecosystem in nineteen sampling sites

location on Natuna Island. The coral reef observation used Underwater Photo Transect

method, the reef fish observation using the Underwater Visual Census method and

megabenthos observations using the Benthos Belt Transect method. The analysis of coral used

percentage of benthic cover, including live coral, dead coral algae, and dead coral. The analysis

for reef fish consisted of diversity, abundance, and biomass analysis for the three fish group

including corallivore, herbivore and carnivore group. The analysis for megabenthos consisted

of diversity and density analysis from eight group megabenthos fauna categories, including,

Giant Clamp, Lobster, Drupella spp., Linckia laevigata, Sea urchin, Sea cucumber, Trochus spp.,

Acanthaster planci. From nineteen sites location, nine sites were categorized as the fair

condition of live coral cover with average percentage of live coral cover was 24.53%. The

largest composition of coral reef fish groups from herbivorous. The highest density

megabenthos was sea urchins (5,500 ind.ha-1), followed by Drupella spp. (3857 ind.ha-1).

Keywords: Coral; Diversity; Outer Island; Reef fishes; Megabenthos.

C1-1


61

Current Status of Coral Reef Ecosystems in Brumbun Bay, Tulungagung

Sukandar1,2, Citra Satrya Utama Dewi1,3,*, Agustin Capriati1, Derta Prabuning4 and

Akhyar Maududi1

1) Faculty of Fisheries and Marine Science – University of Brawijaya, Malang, Indonesia 2) Indonesia Marine Fisheries – IMFISHER, Malang, Indonesia 3) Coastal Resilience and Climate Change Adaptation in Tropical Region – CORECT, Malang, Indonesia 4) Reef Check Indonesia, Denpasar, Indonesia

*Corresponding author: Department of Marine Science and Technology, IPB University, Bogor 16880,

Indonesia

E-mail: [email protected]

Abstract

Coral reefs play a vital role in providing habitat for reef fish and other invertebrates yet there

are increasing pressure on the systems. Moreover, only few studies and information provided

about coral reefs status in Tulungagung. Therefore, the purposes of this study were to

determine substrate cover, diversity of reef fish, and invertebrates. The study carried out in

once sampling sites in Brumbun Bay, Tulungagung on October 2017. The method used were

ecodiver survey, Line Intercept Transect, Underwater Visual Census, and Belt Transect. All

methods were done by diving at depths of 9 to 14 meters. The data obtained then were

analyzed descriptively to describe the current status of coral reefs in Tulungagung. The result

showed that 34% of substrate was covered by hard coral, 45% by sand, rock, coral fragments,

soft corals and algae. A total of four groups reef fish were recorded in this coral reef ecosystem

i.e. Butterflyfish, Snapper, Parrotfish, and Haemulidae. Snapper is known as a reef fish group

that is more commonly found compared to three other groups. The results showed that there

were no invertebrates found during the dive. Based on the results that the status of coral reefs

in Tulungagung was rated in moderate condition. It is imperative to note down that trash nets

and plastic waste were found frequently at most of the sampling sites. This study provides

crucial information about current status of coral reefs in Brumbun Bay, Tulungagung which in

the future can be used as a reference study.

Keywords: Coral Reefs; Reef Fish; Invertebrates; Eco-diver.

C1-2


62

Coral Reef Ecosystems Condition Prediction After Tsunami Based on Previous

Reef fish Community Structure and Benthic Coverage Surveillance on Sumur,

Banten

Budi Prabowo1,2,*, Fery Kurniawan1,3, Aditya Bramandito2, Ridho Zulfikar Wicaksono2,

Muhammad Arsyad Al Amin1 and Akhmad Solihin1,4

1) Centre for Coastal Marine Resources Science Studies, Bogor 16129, Indonesia 2) Department of Marine Science and Technology, IPB University, Bogor 16880, Indonesia 3) Department of Aquatic Resources Management, IPB University, Bogor 16880, Indonesia 4) Department Fisheries Resources Utilization, IPB University. Bogor 16880, Indonesia

*Corresponding author: Centre for Coastal Marine Resources Science Studies, Bogor 16129, Indonesia,

Department of Marine Science and Technology, IPB University, Bogor 16880, Indonesia


Abstract

Patterns of community structure within coral reefs ecosystems were strongly influenced by a

catastrophe such as a tsunami. Sumur is one of the coastal regions which affected the most by

the Banten Tsunami in December 2018. The paper aims to predict coral reef ecosystem

conditions after one month of a tsunami based on reef fish community structure and benthic

coverage data. The research was conducted on each island around Sumur coastal region. Reef

fish samples were sampled using an underwater visual census, and benthic coverage was taken

with quadrats for Coral Point Count Estimation (CPCe). Overall, coral conditions assessed by

conservation value determined through coral morphology. The highest coral coverage was

found in West Sumur, Southwest Oar and North Badul. Almost all sites have a high diversity

reef fish community with the highest abundance and species richness on Southwest Umang

and North Badul. The coral reef ecosystems of Badul Island, Mangir Island and Cigorondong

came to be most stress tolerations. Most stresses tolerated location, which contains mostly

coral massive and sub-massive, will be more enduring than other sites. Reef fishes after a

catastrophe will shift to the sites with most coral reef-building survived, especially reef fish

with territorial behavior.

Keywords: Coral reefs ecosystems; Coral morphology; Reef fish behavior; Tsunami

catastrophe.

C1-3

63

Assessment of Coral Reef Health Conditions in Juru Seberang Village, Tanjung

Pandan District, Belitung Regency-Bangka-Belitung Province

Idris1,*, Fakhrurrozi1 and Cakra Adiwijaya2

1) Indonesian Coral Reef Foundation (TERANGI), Jalan Asyibaniyah No. 105-106 Pondok Jaya Cipayung

Depok West Java16438 2) Graduate School of Marine Science, Faculty of Fisheries and Marine Science, IPB University (Bogor

Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor West Java 16680, Indonesia

*Corresponding author: Indonesian Coral Reef Foundation (TERANGI), Jalan Asyibaniyah No. 105-106

Pondok Jaya Cipayung Depok Jawa Barat 16438


Abstract

Belitung has potential coral reefs as many as 244 species of 15 genera and reef fish as many

as 89 species. However, the current condition of coral reefs in Belitung is under high pressure,

caused by illegal tin mining activities. For this reason, need studies related to their impact on

the health of marine life, especially on coral reefs so that the policy can be reviewed, to see

the important role of coral reefs for other marine biotas. The aim of this study is focused on

knowing the condition of substrate coverage, diversity and biomass of target fish as well as

assessing the health of coral reefs at the observation site. Data were collected with SCUBA

diving equipment at 6 stations, at depth of 5-7 m. The data of substrate was taken by

Underwater Photo Transect method and for reef fish using belt transect. The results showed

substrate coverage was dominated by hard corals, dead corals, sand, and dead corals with

algae. Fleshy Seaweed cover ranges from 0.07-4.77%, coral fragment cover ranges from 0 –

2.6%, target fish biomass value obtained varies between 0.0006 – 0.0299 kg/ha, and coral reef

health index at each observation station ranges from 3 to 6.

Keywords: Coral reef health; Reef fish; Bangka-Belitung; Rubble; Fleshy seaweed.

C1-4

64

Assessment of Coral Reefs Damaged Due to MV Pazifik Ran Aground in the

Sape Strait Using an Aerial Photography Approach and Species Distribution

Modeling

Ofri Johan1, Idris2, Fakhrurrozi2, Mikael Prastowo Widodo2,*, Safran Yusri2 and Osten

Sianipar3

1) Balai Riset Budidaya Ikan Hias, Pusat Penelitian Perikanan, Badan Riset dan Sumberdaya Manusia,

Kementerian Kelautan dan Perikanan, Depok, 16436, Indonesia 2) Indonesian Coral Reef Foundation (TERANGI) Depok 16438, Indonesia 3) Direktorat Penyelesaian Sengketa Lingkungan Hidup Luar Pengadilan-Kementerian Lingkungan

Hidup dan Kehutanan

*Corresponding author: Balai Riset Budidaya Ikan Hias, Pusat Penelitian Perikanan, Badan Riset dan

Sumberdaya Manusia, Kementerian Kelautan dan Perikanan, Depok, 16436, Indonesia


Abstract

Indonesia as an archipelagic country has a high biodiversity of coral reefs, but is very vulnerable

to various of threats, one of the causes of damage to coral reefs is by ship aground. The

damage causes minor injuries to the degradation of the reef structure. The location of the

grounding sometimes on the small islands with calm currents, but sometimes in straits with

strong currents. However, assessment must be carried out, so it is necessary to develop an

approach to assessing that. The purpose of this study is to assess the damage of coral reefs,

to quantify the extent of damage and identify speciess of corals affected. The observation used

ground truth (underwater photo transect), aerial photography, machine learning and species

distribution modeling. The results obtained from aerial photography show that the MV Pazifik

has damage of coral reefs reaching to 613.63 m2. Based on the coral genera distribution

model, it was found 35-55 genera (control location), while at the ship aground, were found 3-

5 genera. Therefore, the control location is a coral reef ecosystem that is dominated by corals,

while at the ship aground it can be the habitat for several hard coral genera.

Keywords: Ship aground; Genera distribution model.

C1-5

65

Transplantation of Acropora loripes using Spider Frame Module in Bali Waters

Muhammad Ali Subhan1,, Yunaldi Yahya2, Yayan Mardiansyah Assuyuti1 and

Lily Surayya Eka Putri1,*

1) Biology Department, Faculty of Science and Technology, UIN Syarif Hidayatullah, Jl. Ir. H. Djuanda

No.95, Ciputat, South Tangerang, 15412, Indonesia. 2) Yayasan Alam Indonesia Lestari, Jl. Tirta Nadi II/21, Denpasar, Bali 80227, Indonesia.

*Corresponding author: Biology Department, Faculty of Science and Technology, UIN Syarif

Hidayatullah, Jl. Ir. H. Djuanda No.95, Ciputat, 15412, Indonesia.


Abstract

The condition of coral reefs in Bali waters recently is getting worst which should be put more

concern in conservation of ornamental fish in the ecosystem. This study aims to conserve fish

community by developing the spider frame module transplantation of Acropora loripes corals

as an ornamental habitat for marine biota. The frame was located at two different depths, 6

and 10 meters with total 88 fragments of 22 modules and 2 fragments each module.

Monitoring of the growth and the survival rate of corals was conducted 4 times per month,

including the presence of fish. At the end of the study, the Acropora grew 0.59 cm at 6 m

depths and 0.85 cm at 10 m depth. Thus, in one month observation, the growth rate was 0.14

and 0.21 cm/week, in each depth. The presence of the module was also impacted to the

number of fish presented in both depths. There were 10 species of fish found at both depths

with a total number of individual fish was 41 and 36 fish, respectively. The presence of reef fish

showed positive results in coral survival rates, although in 10 m depths the condition of the

reef fish community was unstable.

Keywords: Acropora; Bali waters; Corals; Transplantation.

C1-6

66

Distribution of Mangroves in the Segara Anakan Lagoon and Its Surrounding

Area, Cilacap Regency, Indonesia

Ismail1,2,*, Sulistiono3, Sigid Hariyadi3 and Hawis Madduppa4

1) Program Study of Marine and Coastal Management, Graduate School, Bogor Agricultural University,

Bogor, 16680, Indonesia 2) Marine and Fisheries Polytechnic of Sorong, Ministry of Marine Affairs and Fisheries, Sorong, 98411,

Indonesia 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, Bogor

Agricultural University, Bogor, 16680, Indonesia 4) Department of Marine Science and Technology, Faculty of Fisheries and Marine Sciences, Bogor

Agricultural University, Bogor, 16680, Indonesia

*Corresponding author: Marine and Fisheries Polytechnic of Sorong, Ministry of Marine Affairs and

Fisheries, Sorong, 98411, Indonesia


Abstract

Mangrove forest habitats in the Segara Anakan Lagoon have become an important area for

estuarine fisheries which should be preserved for sustainability. This study aim to analyze

diversity, density, and the importance value index of the mangrove in the area. The method

used was a plot and path (combination method). The results show the average mangrove

density over all stations was dominated by seedlings with 39,881 individuals/ha with fraction

75%, followed by saplings with 12,311 individuals/ha (23%), and tree category with 711

individuals/ha (1%). Because of the average mangrove density of tree category less than 1000

trees/ha (based on Ministry of Forestry Act 201 year 2004), so, the mangrove forest in the

Segara Anakan Lagoon and its surrounding area was categorized to be damaged. Meanwhile,

the highest Importance Value Index (IVI) was at 221 for R. apiculata and at 220 for Sonneratia

caseolaris for all stations.

Keywords: Mangrove diversity; Importance value index; Segara Anakan Lagoon.

C1-7


67

Effect of burrows of Boleophthalmus pectinirostris (Linnaeus, 1758) (Class

Actinopterygii Family Gobiidae) on Total Organic Matter in the Mangrove

Ecosystem of Pandansari Brebes, Central Java

Allsay K A Cintra*, Tyani Fitrian, Selvia Oktaviyani, Riyana Subandi, and Rosmi N

Pesilette

Pusat Penelitian Oseanografi-Lembaga Ilmu Pengetahuan Indonesia

Jl. Pasir Putih I, Ancol Timur, Jakarta 14430

*Corresponding author: Pusat Penelitian Oseanografi-Lembaga Ilmu Pengetahuan Indonesia

Jl. Pasir Putih I, Ancol Timur, Jakarta 14430


Abstract

B. pectinirostris constructs different shapes of burrows on the surface of the sediment because

of different functions. This study was to determine the effect of burrows on total organic

matter (TOM) on the sediment surface in the mangrove ecosystem in Pandansari Brebes,

Central Java. Sampling was divided into mangrove areas and beach areas. The shape of the

burrows was visually observed in a year. TOM was taken from inside and outside the burrow

in June and September using a syringe and analyzed by the LOI method. B. pectinirostris has

circular burrow openings at the same height as the ground surface. At the mouth of the

burrow, there are traces of fish coming in and out. The diameter of the burrows is around 3-

4cm in the beach area and 2-9cm in the beach area. TOM in the mangrove area inside the

burrow is 9.034±0.851% and outside is 8.470%±0.967% and in the beach area inside the

burrow is 8.754%±0.476% and outside is 8.558%±0.924%. There is no difference in TOM inside

and outside the burrow in the two areas (P>0.05). It is likely caused by the locomotion of fish

and tidal stirring, so the burrows do not function as a TOM trap.

Keywords: B. pectinirostris; Burrow; TOM.

C1-8

68

Growth Pattern and The Reproduction Factor of Three Spot Gouramy

Trichopodus trichopterus (Pallas, 1770) in Mangrove Waters of Muara Angke

(Jakarta) and Ciperet Estuary (Cilacap), Indonesia)

Gema Wahyudewantoro1,*, Haryono1, Sulistiono2 and Rahmi Dina3

1) Research Center of Biology, Indonesian Institute of Sciences, Jl Raya Jakarta-Bogor, Km 46. 16911.

Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB


3) Research Center of Limnology, Indonesian Institute of Sciences, Jl Raya Jakarta-Bogor, Km 46.16911.

Indonesia

*Corresponding author: Research Center of Biology, Indonesian Institute of Sciences, Jl Raya Jakarta-

Bogor, Km 46. 16911. Indonesia


Abstract

Mangrove ecosystem is a unique and interesting ecosystem inhabited by many species of fish,

one of which is the swamp sepat fish (Trichopodus trichopterus). Therefore, research has been

was conducted on the growth and reproduction of Sepat. The research locations are the

mangrove waters of Muara Angke (Jakarta) compared to the collection of the Museum

Zoologicum Bogoriense from the Ciperet estuary, Indonesia. The purpose of this study was to

determine the Growth Pattern, Fulton’s Condition Factors, Sex Ratio and Gonadal Maturity

Stage (GMS). The fish was collected at Muara Angke in January to March 2014, and Ciperet

estuary in September to October 2012, and both at 4 research station. Fishing gear used in

both locations is using cast nets (1 cm and 2 cm mesh) and gill nets (¾ inch, 1 inch, 1.5 inch

and 2 inch nets). The total length and total wet weight were measured, subsequently, the sex

and stage of gonad maturity were morphologically determined. The LWR of Sepat in Muara

Angke were W = 0.00006L2.89 for male and W = 0.0003L2.62 for female, whereas, the LWR of

male and female in Ciperet estuary were W = 0.0007L2.37 and W = 0.0006L2.44, respectively.

Moreover, the growth pattern of the male in Muara Angke has been isometry, while the female

has been negative allometry. As in Ciperet estuary, the growth pattern both of male and female

have been negative allometric. The Fulton’s condition factors males and females in the Muara

Angke were 3.7118 ± 0.7847 and 1.0014 ± 0.0551, respectively. On the other hand, in the

Ciperet estuary, the value was 1.0011 ± 0.0485 for males and 1.0024 ± 0.0685 for females. The

sex ratio for males and females in Muara Angke on the Chi square test with a confidence

interval of 95% (α = 0.05) obtained significantly different results 1: 1.93, while in the Ciperet

estuary 1: 1.69. In both areas, various maturity stages of gonad were found with different

dominant maturity stage. In Muara Angke most of the fish was at higher gonadal maturity

stages (III and IV) whereas in Ciperet estuary the lower GMS was found (I and II).

Keywords: Growth pattern; Condition factors; Gonadal maturity stage; Trichopodus

trichopterus; Muara Angke; Ciperet estuary.

C1-9

69

The Estimation of the Coastal Fisheries Resources Quantity Based on Water

Birds in the Ujung Pangkah Region, Gresik Regency, East Java

Mokhamad Asyief Khasan Budiman1,*, Fery Kurniawan2 and Zairion2

1) Center for Coastal and Marine Resources Studies (CCMRS), IPB University (Bogor Agricultural

University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127, West Java, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB


*Corresponding author: Center for Coastal and Marine Resources Studies (CCMRS), IPB University

(Bogor Agricultural University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127,

West Java, Indonesia.


Abstract

Water birds are a group of birds that have a high dependence on natural and artificial aquatic

habitats. Its existence indicates the availability of sufficient feed at that location. This is related

to the factor of bird habitat preference which always makes feed as one of the basic things to

fulfill their daily needs. The Ujung Pangkah area is an estuary habitat that is occupied by

waterbirds, both resident and migratory birds. Therefore this area provides sufficient feed

stock for the existing waterbirds. Most of the aquatic bird feed is aquatic animals which can

be defined as fishery resources, both from benthos and nekton (fish) that live in aquatic

ecosystems. This research is expected to provide a general description of the relationship

between waterbirds and the quantity of fishery resources. The research was conducted in

November 2019 in six location in the Ujung Pangkah Region, Gresik Regency, East Java. The

results of the study found 44 species of water birds from 10 families. The density of the

waterbird population was found in Kalianyar with a density of 3,878.98 ind.ha-1. In line with

this, Kalianyar has become a high location for stocks of fishery resources. A total of 8,880,000

ind.ha-1 benthic and 29.30 ind.ha-1 nekton were found in this location.

Keywords: Fishery resources; Water birds; Coastal management; Ujung Pangkah.

C1-10


70

Opportunity for the Status Improvement of Mangrove Forest of Sungai

Pakning, Riau as Essential Ecosystem Area in the Coastal of Sumatera Island

Yoppie Christian1, M. Asyief Khasan Budiman1, Wahyu Purwanto2 and Ario Damar1

1) Center for Coastal and Marine Resources Studies (CCMRS) IPB University 2) Corporate Social Responsibility Program Pertamina RU II Sungai Pakning, Riau

*Corresponding author: Center for Coastal and Marine Resources Studies (CCMRS) IPB University


Abstract

Out of 50 established Essential Ecosystem Area up to early 2020, only 6 located on mangrove

area. To support the government target’s achievement of ecological representative protection,

at once to enhance the conservation of coastal environment and resources, what has been

initiated by Pertamian RU II Sungai Pakning, communities of seven coastal villages on Bukit

Batu district, and various actors to rehabilitate and conserve the environment need to be

supported through the improvement status to be one of wet land type Essential Ecosystem

Area (EEA). Apart from the its biological diversity and the carbon stock potentials, this 281,86

hectares area has been developed as an integrated costal management site because

attempting to integrate the coastal disaster risk mitigation, protection on mangrove-based

biodiversity, wise utilization of wetland through inland aquaculture, education-purpose

tourism, the environmental-based communities institutionalization, and as a coastal

resources-based alternative livelihood. The improvement status as Essential Ecosystem Area

expectedly also improve the quality of coastal management and promote the wider

collaborative management, and encourage the sustainable utilization by communities

surround mangrove area.

Keywords: Essential Ecosystem Area; Mangrove; Integrated coastal management; Wet land;

Sungai Pakning.

C1-11


71

Effectiveness and Impact Studies of Mangrove Rehabilitation in Northern Coast

of West Java; Case Study in Karawang Regency

M. Arsyad Al Amin*, Dadan Mulyana, M Asyief Khasan B, and Kamsari

Center for Coastal and Marine Resources Studies (CCMRS), IPB University (Bogor Agricultural

University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127, West Java, Indonesia


(Bogor Agricultural University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127,



Abstract

Plenty of mangrove rehabilitation programs have been implemented on the Northern Coast

of Java, including in Karawang Regency, both by the community and by the participation of

private companies through Corporate Social Responsibility (CSR). Over ten years, millions of

mangrove stems has been planted. How the results and impacts on the ecology and socio-

economy have not been widely evaluated. To find out the results and effectiveness of the

mangrove rehabilitation program, an assessment and evaluation the results of the mangrove

rehabilitation had been carried out. This study aims to determine the condition of the results

of rehabilitation and its impact on ecology and socio eonomic surrounding the rehabilitation

location. The assessment show that mangrove rehabilitation activities on the north coast of

Karawang Regency have provided new evidence that planting mangroves for rehabilitation

purposes can not only be seen as tree planting activities, but the impact and multiplier effects

of its extraordinary benefits have not been paid much attention. Rehabilitation results have

provided very significant results, seen from the increase in mangrove area, ecosystem quality

as well as positive impacts on ecology and significant socio-economic impacts in primary

impacts, secondary impacts or cumulative impacts. It is necessary to develop and utilize the

results of rehabilitation through a good socio-economic and institutional development

approach in order to achieve a higher positive impact on the community.

Keywords: Mangrove rehabilitation; Northern coast of Java; Impact of rehabilitation.

C1-12


72

Abundance and Distribution of Microplastics in Baturusa Watershed of Bangka

Belitung Islands Province

Refa Riskiana1, *, Sigid Hariyadi2 and Hefni Effendi2,3

1) Graduate Student of the Department of Aquatic Resources Management, Faculty of Fisheries and



University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Pusat Penelitian Lingkungan Hidup, Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut

Pertanian Bogor, Kampus IPBDarmaga Bogor, 16680, Indonesia

* Corresponding author: Department of Aquatic Resources Management, Faculty of Fisheries and


16680, Indonesia.


Abstract

Microplastics has been found in the most water bodies since 1970s, yet its presence and

understanding about the existence on freshwater body, as well as control upon its abundance

is still very limited. Whereas river became a very potential channel for microplastics to

contaminate environment. Microplastics is term refer to plastic particles which diameter less

than 5 mm. Microplastics could act as absorbent of chemical from the environment, and also

carrier of additive chemical added during the process of plastic manufacturing to the

organisms. It can potentially affect the organisms through aquatic food web. This study aims

to figure out the abundance and distribution of microplastics in Baturusa watershed, was

carried out in November 2019 to August 2020. Samples were collected using plankton net of

30 µm mesh size, from seven sites represent upstream, downstream, and tributaries, then

analyzed using ocular microscope. The microplastics particles type found are sheets, films,

fibers, and fragments. The average of microplastics abundance is 2209–5569 particles/m3, the

highest abundance is found in Rangkui river estuary 5647 particles/m3, and the lowest

abundance is in Selindung river. This reveals that the more public activities have more impact

on abundance of microplastics in the waters.

Keywords: Microplastic; Baturusa Watershed; Bangka Belitung.

C1-13


73

Microplastic Spatial Distribution in Sediment of the Citanduy River, West Java

Zulhamsyah Imran1,*, Taryono1 and Anah Marliana2

1) Lecture in Aquatic Resources Management Department, Bogor Agriculture University 2) Student in Aquatic Resources Management Department, Bogor Agriculture University

*Correspondent Author: Departement of Aquatic Resources Management Department, Bogor

Agriculture University


Abstract

Microplastic particles have a significant impact on freshwater environments, as well as on biota

association in its ecosystems. This study aims is to identify microplastic and determine the

spatial distribution of sediments in the Citanduy River, West Java. The study was conducted in

the period September 2019 to May 2020 using survey methods and laboratory analysis. The

microplastic analysis stages of sediment include several steps, namely drying, volume

reduction, filtering, density separation, and visual sorting. Microplastic was observed by census

method on the SRC (Sedgewick Rafter-Counting Cell) that it was helped by a micrometer at a

magnification of 10x10. Statistical analysis using MS. Excel 2007 and SPSS 15.0 software.

Kruskall Wallis and Mann Whitney are use for the statistical tests and as well as using spatial

analysis which was implemted ArcMap software. The highest microplastic abundance was in

the downstream area, followed by the upstream; however, the lowest value was in the middle

of the sediment of Citanduy River. Microplastic abundance in this river was ranged 18190-

70405 particles/kg of dry sediment. The determination of microplastic type found was

fragments form. The dominant microplastic color was black. The microplastic size of films and

fragments were determinanted by range 20-40 μm and the dominant fibers was about 500-

1000 μm. Spatially, the abundance of the microplastic average at the sub-station and sampling

station was found to be the highest at 2nd sub station downstream area and 3rd station

(downstream area).

Keywords: Citanduy River; Microplastic; Sediment.

C1-14

74

Management Strategy of Plastic Pollution in the Cimandiri River-Sukabumi,

West Java

Taryono Kodiran* and Dwi Yuni Wulandari

Department of Aquatic Resource Management, Faculty of Fisheries and Marine Sciences, IPB


*Correspondent Author: Departement of Aquatic Resources Management Department, , Faculty of

Fisheries and Marine Sciences, IPB University (Bogor Agricultural University), Kampus IPB Darmaga, Jl.

Agatis, Bogor, 16680, Indonesia


Abstract

Plastic water pollution is an emerging global and national issues. Global concerns include river

water plastic pollution. Cimandiri watershed is the most important watershed within the

Sukabumi municipality area which flows to the Palabuhan Ratu bay waters. Nowadays, the

plastic pollution of the Cimadiri river water that ends in Palabuhan Ratu coastal area become

sensitive and critical issues. Because it directly threat local coastal tourism as a major activity

of the local economy. Every party is aware that plastic pollution is an effect of anthropogenic

activities along the Cimandiri river stream that highly possible become greater and wider. Local

government have taken some policy actions to attack these issues, but it is still not effective

yet. This paper aims to conduct policy analisys for formulating required priority policy strategy

to overcome the problems. The Analytical Network Process (ANP) will be applied as an expert

choice method that involves local government policymakers. The analysis will identify some of

the significant policy criteria and formulate the required government priority policy to manage

the Cimandiri water river pollutions growth rate and its impacts. This result will be valuable as

one of the policy refference to battle the water river plastic pollutions.

Keywords: ANP; Bay, Policy; Strategy; Watershed.

C1-15

75

Seasonal Variation of Marine Debris at Manado Bay (Northern Sulawesi,

Indonesia, where the National Park of Bunaken is located)

Markus T. Lasut1,*, Lindon R. Pane1, Veibe Warouw2 and Jane M. Mamuaja2

1) The study program of Aquatic Sciences, Faculty of Fisheries and Marine Sciences, Sam Ratulangi

University, Manado, Indonesia 2) The study program of Marine Sciences, Faculty of Fisheries and Marine Sciences, Sam Ratulangi

University, Manado, Indonesia

*Corresponding author: The study program of Aquatic Sciences, Faculty of Fisheries and Marine

Sciences, Sam Ratulangi University, Manado, Indonesia

E-mail: [email protected]

Abstract

Marine debris has become a global concern due to its impact on marine ecosystems. These

materials generally come from land and are deposited to marine environment through

different agents of carrier. Many efforts are being made to monitor the dynamics of the debris

including their presence and their variability in relation to seasons. The latter are assumed from

the facts that the presence of the litter is mainly affected by waves, speed and direction of

ocean currents in the area of interests. In this study, variation of debris in wet and dry season

at Manado Bay (North Sulawesi, Indonesia) was assessed by using a shoreline technique

(assessment of shoreline segments). It is part of the monitoring program of marine debris in

marine area of Bunaken National Park which is in the centre of the Coral Triangle area. Two

locations are selected, Molas and Malalayang beach, and the selection was based on NOAA

2013’s 5 characteristics for site selection. The area of study is in northern and southern part of

the Manado Bay. The samplings were conducted in August 2019 (represent dry season) and

January 2020 (represent we season) using the 2017 Guidance of Indonesia Marine Debris

Monitoring. Several parameters are examined during the samplings; they are: amount of

material (per square meter), material category (type of litter), composition, and spatial density

of each type of macro- (> 2.5 cm) and meso-sizes (5 mm – 2.5 cm). The comparisons within

the seasons were also made using those parameters. The results showed that there were

variations on composition and density, but the types of litter remain unchanged. Low

biodegradable type of materials such as plastics was present equally in both seasons.

Apparently, the amount of litter, composition of materials, and the density of the debris were

higher during wet season than dry season. However, they were not significant different

statistically. Our present study concluded that variation in the season do not affect the

variability of marine debris in Manado Bay.

Keywords: Marine debris; Manado bay; Coral triangle; Marine pollution; Waste management.

C1-16


76

Public Perceptions in General and Student’s Perception toward Marine Litter in

Southwest Aceh

Ika Kusumawati1,*, Mita Setyowati2, Agung Dharma Syakti3 and Achmad Fahrudin4

1) Marine Science Department, Teuku Umar University, Meulaboh, West Aceh Regency, Aceh Province,

Indonesia 2) Agrotechnology Department, Teuku Umar University, Meulaboh, West Aceh Regency, Aceh Province,

Indonesia 3) Marine Science and Fishery Faculty, Raja Ali Haji Maritime University, Indonesia 4) Marine Science and Fishery Faculty, Bogor Agricultural Institute, Bogor, Indonesia

*Corresponding author: Marine Science Department, Teuku Umar University, Meulaboh, West Aceh

Regency, Aceh Province, Indonesia


Abstract

Indonesia is the second highest contributor of marine litter as 1.29 million tons of plastics. One

of the contributing factors on marine litter is the lack of understanding and the community

behaviour which reflected to public practices in littering. Children are social capital for

community and the essential agents of social change. Students are sensitive to every issue that

viral around the world such as environmental problem like marine litter. It was shown that

many social movements are run by young people. However, they have issues in recognising

the foundation and the explanation of environmental problem. Therefore, the research

objective is to evaluate societal perception and millennial generation towards marine litter.

This study will employ a survey approach by distributing questionnaires to 150 respondents

from general public and several senior high schools. It was found that respondents show low

awareness on marine litter according to statistical data, but there are some rooms to manage

in order to raise the level of awareness. It concludes that sense of responsibility could be

enhanced by involving public in any activities for preventing and eradicating marine litter.

Education aspect is also important to increase public understanding about the threats of

marine litter on environment.

Keywords: Students; Perceptions; Marine Litter; Aceh.

C1-17


77

The High Abundance of Sardinella lemuru Catch in Prigi Waters and Their

Implication to Plankton

Aida Sartimbul1,2,*, Egha Trishnayana1 , Erfan Rohadi3, Nurul Muslihah4, Feni

Iranawati1,2, Ledyane Ika Harlyan1,2, Abu Bakar Sambah1,2, Oktiyas Muzaky Luthfi1, and

Muhammad Arif Rahman1,2

1) Department of Fisheries and Marine Resources Management, Faculty of Fisheries and Marine

Sciences, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia 2) Marine Resource Exploration and Management Research Group, Faculty of Fisheries and Marine

Science, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia 3) Department of Information Technology, State Polytechnic of Malang, Jalan Sukarno-Hatta No. 9,

Malang 65141, East Java, Indonesia 4) Department of Nutrition Science, Faculty of Medicine, Brawijaya University, Jalan Veteran, Malang

65145, East Java, Indonesia

*Corresponding author: Department of Fisheries and Marine Resources Management, Faculty of

Fisheries and Marine Sciences, Brawijaya University, Jl. Veteran, Malang 65145, East Java, Indonesia.


Abstract

Sardinella lemuru was the main source of livelihood for Bali Strait fishermen. However, at the

end of 2019 these fish were caught very abundantly in Prigi waters. The cause of this

abundance is remained unknown. The aims of this study are to analyze the abundance of

plankton in relation to the abundance of S.lemuru in Prigi waters. A total of 100 samples of

S.lemuru were taken using a purse seiner, while the aquatic plankton was collected using a

20µm plankton net with a vertical method at 5 sampling sites of S.lemuru fishing ground in

Prigi waters. The S.lemuru samples were analyzed for morphology, morphometry, and meristic,

as well as the contents of the stomach. Plankton samples collected form aquatic and S.lemuru

gut were identified and their abundance analyzed. The results showed that total length (TL) of

S.lemuru is about 16.47 ± 0.19 cm. The composition of plankton in waters is 52.8% and 47.2%

of zooplankton and phytoplankton, respectively. Phytoplankton is dominated by Actinocyclus

(14098 ind.m-3), while zooplankton dominated by Acartia (15.592 ind.m-3). Correlation

coefficient between phytoplankton and the S.lemuru is r = 0.920 with a determination

coefficient of 84.9%.

Keywords: Sardinella lemuru; Phytoplankton; Zooplankton; Stomach; Prigi Waters.

A2-1


78

Aquatic Environment Condition as a Base for Fisheries Development in Cengkok

Coastal Waters, Banten Bay

Dehan Pramadhana1, Tri Prartono1 and Sulistiono2,*






16680, Indonesia.


Abstract

The waters of Cengkok Beach are one of the coastal areas in Banten Bay which have a large

potential for fishery resources. There are various activities around this area, in the form of

agriculture, settlement, fishery cultivation and fishing ports. This study aims to explain the

condition of the waters as the basis for fisheries development in the region. The method of

implementation was carried out through water sampling with both in situ and ex situ

observations at five stations from April to September 2019. Observations were made on the

physical parameters of water (temperature, transparancy, turbidity, Total Suspended Solid-

TSS), and water chemical parameters (pH, salinity, dissolved oxygen-DO). Based on

observations of physical and chemical parameters, it is known that the waters have

temperatures ranging from 28.0-35.3 °C; brightness 0.07-2.00 m; turbidity from 0.5-240 NTU;

TSS 0.4-325 mg/l; salinity 0-34.0; pH 6.7-8.0; and DO 3.2-7.8 mg/l. From the observation of the

condition of these waters, it can be seen that Cengkok coastal waters are physically-chemically

quite good, however, it is also found that the temperature is quite high in these waters that

have passed the threshold for fisheries development. The resulting pollution index value is in

the light polluted category.

Keywords: Cengkok; Aquatic environment; Fisheries development.

A2-2


79

Proportion of Feasible to Catch of the Flying Fish (Hirundichthys oxycephalus)

and Its Implications to Fisheries Management in Indonesia and Timor Leste

Beatrix M. Rehatta1, 3,*, MM Kamal2, M. Boer2, A. Fahrudin2 and Zairion2

1) Department of Coastal and Marine Resource Management, Graduate School, IPB University, Bogor

Indonesia 2) Faculty of Fisheries and Marine Science, IPB University, Bogor Indonesia 3) Faculty of Fisheries and Marine Science, Artha Wacana Christian University, Kupang, East Nusa

Tenggara Indonesia

*Corresponding author: Faculty of Fisheries and Marine Science, Artha Wacana Christian University,

Kupang, East Nusa Tenggara Indonesia.


Abstract

A study of small pelagic fisheries has been conducted in the border areas of Indonesia and

Timor Leste in Belu Regency and Bobonaro District. Observations were made on several

species of small pelagic fish including flying fish (Hirundicthys oxycephalus). The aims of the

study are to determine first fish caught size, first gonadal maturity size and proportion of

juvenile and adult fish of flying fish in Ombai Strait. Monthly data collection conducted in May

2018 – June 2019 from fish landing sites in Belu Indonesia and Bobonaro Timor Leste. There

were 2240 fish collected to measure the total length and gonadal maturity stage. Data analysis

using an analytical model based on the program Electronic Length Frequency Analysis

(ELEFAN). The results of the total length measurements showed that flying fish population in

Ombai Strait had a maximum length (Lmax) of 314 mm, a minimum length (Lmin) of 140 mm

and an average length (Lmean) of 197 mm. The total length of flying fish when the gonad is

first mature (Lm) was 153 mm and the average total length of flying fish caught (Lc) was 154

mm. About 98.54% of the flying fish caught were > Lm in size and belong to the category of

adult fish that should be feasible to catch. The proportion of flying fish not feasible to catch <

Lm was 1.46%. These results indicate that the size of the mesh drift gillnet used to catch flying

fish in Belu Indonesia and Bobonaro Timor Leste is good to ensure the sustainability of flying

fish resources in Ombai Strait.

Keywords: Fisheries management; Flying fish; Feasible to catch; Ombai Strait.

A2-3

80

Characteristic of Neritic Tuna Fisheries in the Java Sea and Adjacent Waters

Thomas Hidayat1,*, Mennofatria Boer2, Mohammad Mukhlis Kamal2, Zairion2 and Ali

Suman3



2Research Institute for Marine Fisheries, Ministry of Marine Affairs and Fisheries; Jl. Raya Bogor KM

47 Nanggewer Mekar, Cibinong, Bogor-Indonesia. 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Research Institute for Marine Fisheries, Ministry of Marine Affairs and Fisheries; Jl. Raya Bogor KM 47

Nanggewer Mekar, Cibinong, Bogor-Indonesia.

*Corresponding author: Jl. Raya Bogor KM 47 Nanggewer Mekar, Cibinong, Bogor-Indonesia.


Abstract

Neritic tuna is an important fishery commodity in the Java Sea, information on its fisheries

characteristics still limited. The study was conducted in 2018. Data was collected by researchers

with the help of enumerators who monitoring and collected data from fishermen. The method

used is direct observation at the study site and interviews with fishermen. This study aims to

analyze information fishery characteristics neritic tuna about fluctuations in catch, CPUE, catch

composition, fishing grounds, fishing season. The results show neritic tuna in Java Sea caught

by purse seine, mini purse seine, drift gill net and encircling gill net. Annual catch of neritic

tuna is still fluctuation. The CPUE of some fishing gears are fluctuated, the trend CPUE of mini

purse seine and the drift gill net tends to decrease while the purse seine and the encircling gill

net tends to decrease. Catch composition of purse seine and mini purse seine dominated by

small pelagic seine while drift gill net and encircling gill net dominated by neritic tuna. Fishing

ground around west of Karimun island, while purse seine fishing ground from west of

Masalembu and around Matasiri island. Fishing seasons are in April to May and October to

December.

Keywords: CPUE; Java Sea; Fishing season.

A2-4

81

The Colour Preference of Panulirus homarus

Dudi Lesmana*, Eddy Supriyono, M. Zairin Junior, Kukuh Nirmala and Dedi Jusadi

Departement of Aquaculture, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University

(IPB University), Bogor, Indonesia.

*Corresponding author: Departement of Aquaculture, Faculty of Fisheries and Marine Sciences, Bogor

Agricultural University (IPB University), Bogor, Indonesia.


Abstract

The background color of container can affect the intensity of light that is absorbed or reflected

back. The presence of too intense light can stress some cultivated organisms and die. The

stressed cultured organisms have a low appetite so that the remaining feed on the rearing

media is increasing. Color preference observations included lobster preferences against red,

black, blue, green, yellow and white container backgrounds. Color preference observations

were carried out every half hour for 24 hours. Based on observations in the first half hour, there

has been the most lobster movement towards the black container by 44%. But after that the

lobster moved to another color of the container. The largest percentage of lobster movement

towards the red container occurred at the 22nd hour of 46.67%, the yellow container occurred

at the 9th hour of 5.00%, the white container occurs at the 10th hour of 12.67%, the blue

container occurs at the 14,5th hour of 10.67% and the green container occurs at the 7th hour

of 19.33%. In general, the three background colors that lobsters most like are red, black and

blue.

Keyword: Color background; Movement; Preferences; Lobsters.

A2-5

82

Ecosystem Approach to Lobster Fisheries Management in Palabuhanratu Bay,

Sukabumi, West Java

Katarina Hesty Rombe1,*, Luky Adrianto2 and Yusli Wardiatno2

1) Department of Marine Engineering , Bone Marine and Fisheries Polytechnic, Jl. Sungai Musi Km.9,

Waetuo-Watampone, Bone-South Sulawesi, 92718, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB


*Corresponding author: Department of Marine Engineering, Bone Marine and Fisheries Polytechnic, Jl.

Sungai Musi Km.9, Waetuo-Watampone, Bone-South Sulawesi, 92718, Indonesia


Abstract

This research was conducted in Pelabuhan Ratu Bay, March 2016. The purpose of this study is

to assess the lobster fisheries in Pelabuhan Ratu Bay using an ecosystem approach. In this

study, 4 domains were used, namely resources, habitat, social, and economy. Each domain has

several indicators that will then be assessed using a criteria table. The next step is weighting

each domain so that 3 index values will appear, namely ORI (objective risk index), SRI (species

risk index), and FRI (fisheries risk index). The three index values are included in the risk diagram

so that the risk of the type of lobster and lobster fishery understudy will be described. Red

color represents a bad category, yellow represents the medium category and green represents

a good category. Research shows that all studied lobsters (Panulirus homarus, Panulirus

versicolor, Panulirus ornatus, Panulirus penicillatus, and Panulirus longipes) come in yellow and

green zone. Palabuhanratu lobster fishery also comes in yellow zone. Some tactical decisions

can improve the status of lobster in Palabuhanratu, such as limiting the fishing effort for

Panulirus homarus and limiting fishing gear, also strengthening the institutional system.

Keywords: EAFM; Fisheries assessment; Lobster; Palabuhanratu.

A2-6


83

On the finding of Nile tilapia Oreochromis niloticus (Cichliformes: Cichlidae) in

Georgia, South Caucasus

Tatia Kuljanishvili1,*, Giorgi Epitashvili2, Bella Japoshvili2, Jiří Patoka1 and Lukáš Kalous1

1) Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech

University of Life Sciences Prague, 165 00 Prague, Czech Republic. 2) Institute of Zoology, Ilia State University, Cholokashvili ave.3/4, 0165 Tbilisi, Georgia.

*Corresponding author: 1Department of Zoology and Fisheries, Faculty of Agrobiology, Food and

Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic.


Abstract

Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) is a fish from the family Cichlidae, native to

Sub-Saharan Africa. Nile tilapia is the most cultured fish species worldwide and because of its

commercial value and well-developed aquaculture technologies, it has been introduced to

many countries. Nile tilapia also has become invasive in areas of suitable climate when escaped

from aquaculture facilities to the wild. Georgia is the country in the Ponto-Caspian region

situated on the southern slopes of the Great Caucasus eastwards from the Black Sea coast.

Due to its very variable landscape, the climate of Georgia fluctuates from cold mountainous to

humid subtropical type. Here we present the finding of Oreochromis niloticus in freshwaters of

eastern Georgia for the first time, with the discussion of risk assessment in regards to the

climate suitability for potential establishment.

Keywords: Non-native species; Climatch; Risk assessment.

A2-7

84

Redclaw crayfish, Cherax quadricarinatus: Spatial Distribution and Dispersal

Pattern in Java Island

Surya Gentha Akmal1,*, Agus Santoso2, Yonvitner3, Jiří Patoka1 and Ernik Yuliana4

1) Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech

University of Life Science Prague, Kamýcká 129, 165 00 Prague – Suchdol, Czech Republic 2) Department of Statistic, Faculty of Science and Technology, Indonesia Open University, Pondok

Cabe, 154 37 Tangerang Selatan, Indonesia 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 4) Department of Biology, Faculty of Science and Technology, Indonesia Open University, Pondok Cabe,

154 37 Tangerang Selatan, Indonesia

*Corresponding author: Department of Zoology and Fisheries, Faculty of Agrobiology, Food and

Natural Resources, Czech University of Life Science Prague, Kamýcká 129, 165 00 Prague – Suchdol,

Czech Republic.


Abstract

Introduced in Australia in the 1980s for aquaculture enterprises, the first production trials with

Cherax quadricarinatus began around 1985 in southern Queensland. Redclaw crayfish, Cherax

quadricarinatus has invaded many water bodies, reproducing rapidly and threatening

freshwater ecosystems. An understanding of the spatial behavior of Cherax quadricarinatus

can be the basis for further research aimed at control and management. Field sampling was

performed in Java Island in 2019 to 2020 resulting in enough data for modeling the spatial

distribution of Cherax quadricarinatus. Environmental data is collected from a variety of source

and including elevation, slope, land cover, and several water quality measures such as

temperature and pH. The results of the analysis show different influence variables. The most

important threat to this species appears to be rising temperatures. If the introduced species

continue to spread, this could threaten the native population. It seems important to continue

monitoring this species in Indonesia. Future investigations should be carried out to determine

the relationship between the spatial distribution and dispersal pattern of crayfish to their

interactions with ecosystems and native biota.

Keywords: Biogeography; Freshwater; Invasive species; Indonesia; Native species; Non-native

species.

A2-8

85

Management Policy for Controling Invasive Species Red Claw Crayfish (Cherax

quadricarinatus) in Lido Lake Water, Bogor Regency-West Java

Taryono Kodiran*, Ali Mashar and Satira Aryasa

Department of Aquatic Resource Management, Faculty of Fisheries and Marine Sciences, IPB

University Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia



16680, Indonesia.


Abstract

Red claw crayfish (Cherax quadricarinatus) is nationally and globally classified as an invasive

species. One of the main distribution areas of this species is Lake Lido, Bogor regency as a

result of private fish cage development. This invasive species is highly possible as either of

competitor, predator, pathogen, or parasite carrier to the native species that harmful for the

lake water ecosystem equilibrium. Unfortunately, there is still a lack of policy management to

limit potential of its wider distribution. The research aims to analyze policy priorities in

managing invasive species of C. quadricarinatus in Lido lake Bogor. The Analytical Network

Process (ANP) was then utilized as the method for this research. Based on ANP analysis, the

top-three-priority policy criteria for managing C. quadricarinatus are the presence of

competitor inferior species, the economic value of resources and the community involvement.

Overall, the most priority alternative policy for managing the red claw crayfish in Lido Lake is

allowing the community to utilize it with tied monitoring and suppressing population growth.

The rater agreement among the stakeholder of this alternative policy is high (0.61) that

expressing similar expectation of the stakeholders.

Keywords: Competitor; Lido; Parasite; Predator; Pathogen.

A2-9

86

Application of Aquaponic Ebb -Tide System on Tilapia (Oreochromis niloticus)

and Cyprinid (Cyprinus carpio) to Optimize Growth Performance

Imam Taufik, Lies Setijaningsih* and Dewi Puspaningsih

Research Institute of Freshwater Aquaculture and Fisheries Extention Jl. Sempur No. 1, Bogor 16154,


*Correspending author: Research Institute of Freshwater Aquaculture and Fisheries Extention. Jl. Sempur

No. 1, Bogor 16154, West Java, Indonesia


Abstract

The purpose of this study was to optimize the growth performance of tilapia (Oreocromis

niloticus) and cyprinid (Cyprinus carpio) through aquaponic ebb-tide system. This study used

a completely randomized design with 3 treatments and 3 replications: (a) aquaponic with

tilapia, (b) aquaponic with cyprinid, (c) tilapia without aquaponic and (d) cyprinid without

aquaponic. Kangkong was used caused it have the highest inorganic nitrogen reduction

effectiveness value in reducing ammonia, nitrite and nitrate. The range of initial fish weight

were 4-5 g and length of 6-7 cm, with 1600 fish/concrete pond sized 4x2 m2. The research was

conducted for 50 days at the Center for Production, Inspection and Certification of Fishery

Products, Ciganjur Jakarta. The observation variables included fish biological performance,

water physico-chemical parameters and Total N analysis on kangkong. The result showed that

the highest average weight was found in treatment (a) 107.14±0.14g with daily growth rate of

,14±0,043 g. The survival rate between treatments (a) and (b) was not significantly different

(P>0.05), respectively 88.70±0.60 and 83.08±0.55. Kangkong biomass of two harvests from 3

replications were 100.04kg (a) and 93.57kg (b). While the absorption percentage of Total N in

kangkong were 35.63% for treatment (a) and 34.25% for treatment (b).

Keywords: Tilapia, Cyprinid, Aquaponic ebb-tide, Kangkong plants.

A2-10

87

Fish Community Structure in Sermo Reservoir, Yogyakarta, Indonesia: Initial

Study on Invasive Fish Species

Astri Suryandari*, Dimas Angga Hedianto and Indriatmoko

Research Institute for Fish Resource Enhancement, Agency for Marine and Fisheries Research and

Human Resources, Ministry of Marine Affairs and Fisheries of Indonesia, Jl. Cilalawi No. 1 Jatiluhur,

Purwakarta, West Java, Indonesia.

*Corresponding author: Research Institute for Fish Resource Enhancement, Agency for Marine and

Fisheries Research and Human Resources, Ministry of Marine Affairs and Fisheries of Indonesia


Abstract

Invasive species are becoming issues in freshwater ecosystem throughout the world including

Indonesia. Sermo reservoir is located in Yogyakarta, Centra Java, reservoir was indicated have

invasive species which identified as Cichlidae family. The study aimed to assess fish

communities’ structure and identified invasive fish in Sermo reservoir. The research was

conducted in Sermo reservoir, Yogyakarta, Indonesia in March-October 2019. In total, about

2,089 individuals of 10 fish species belonging to 3 families and 8 genera were captured using

experimental gill nets (mesh size 0.75; 1; 1.5; 2; 2.5; 3 inch) at five stations. The fish community

in Sermo reservoir was dominated by Cichlid fish (98.29%). Red devil (Amphilophus labiatus)

and midas cichlid (A. citrinellus) were the dominant species founded in Sermo Reservoir

(60.34% and 34.21%, respectively). The other species of cichlid that caught consist of nile tilapia

(Oreochromis niloticus), mozambique tilapia (O. mossambicus), and jaguar cichlid (Parachromis

managuensis). Cichlid fishes were more abundant compared to native species (Cyprinidae).

The study showed that Amphilophus spp. have high dispersal (one way ANOSIM revealed

Amphilophus spp was not significantly different for spatio-temporal (p>0.05) and become

invasive species in Sermo Reservoir.

Keywords: Amphilophus; Invasive; Midas cichlid; Red devil; Sermo Reservoir.

A2-11


88

Feeding Habit of Strombus Canarium in Tanjung Sebauk Bintan Island

Risandi Dwirama Putra, Rio Saputra, Ita Karlina, Aditya Hikmat Nugraha*, Fadliyah

Idris, Mario Putra Suhana, Try Febrianto, Rika Anggraeni, Imam Pangestiansyah Putra

and Chandra Joei Koenawan

Department of Marine Science, Faculty of Marine Science and Fisheries, Raja Ali Haji Maritime

University (UMRAH), Jl. Politeknik, Kampus UMRAH Senggarang, Tanjungpinang 29111

*Corresponding author: Department of Marine Science, Faculty of Marine Science and Fisheries, Raja

Ali Haji Maritime University (UMRAH), Jl. Politeknik, Kampus UMRAH Senggarang, Tanjungpinang

29111


Abstract

Several species of marine gastropod mollusk used by the community as economical food

commodities, including the Strombus canarium found in the Tanjung Sebauk, Bintan Island.

The S. canarium diet as a deposit feeder significantly affects the consumption of S. canarium

food varieties. Until now, there was limited information related to the classification of food

consumed by S. canarium. Environmental factors affect S. canarium habitat substantially by

providing a food source that is absorbed and influences the growth of S. canarium.

Resettlement and restaurant activities in coastal areas affect changes in environmental

conditions and modify the habitat and food variations for S. canarium. The Swept Area

Sampling (SAS) method is applied to sweep and collecting S. canarium with a bed-ground area

of 1500 m2 in Tanjung Sebauk. The shell splitting and surgery completion of S. canarium was

handled in the laboratory. S. canarium samples were immersed with 10% formalin to serve and

protect the gastric sample and prevent from rupturing, including providing the possibility to

observe the various food components from S. canarium. Each species of organism found in an

S. canarium stomach sample was photographed and counted and measured three times.

Photographs of the gastric sample obtained from observations in a microscope were analyzed

and identified comprehensively to find the composition of foods varieties from the S.

canarium. The varieties of food composition obtained were distinguished by class and group

of biota and analyze using the Preponderance Index. The varieties of food composition in

gastric samples from S. Canarium shown eight species with the majority composition from

plankton groups (phytoplankton and zooplankton), and one species is the copepod class. The

following species of biota found in the stomach S. canarium based on the Preponderance

Index consists of Thalassionema sp. (42.59%) as primary food, followed by Nocticula sp. and

Coscinodiscus sp. as additional food with a percentage of 37.45% and 12.35% respectively. In

comparison, the variety complimentary food from S. canarium consists of Entomoneis sp.

(2.47%), Cymbella sp. (1.23%), Cochlodinium sp. (1.23%), Calanus sp. (1.85%), and Boreadinium

sp. (0.82%).

Keywords: Food; Composition; Diversity; Strombus canarium; Bintan Island.

A2-12


89

Water Quality in Ecosystem Sea Cucumber Acaudina sp in the Delta Wulan

Waters, Central of Java, Indonesia

Widianingsih Widianingsih*, Ria Azizah T Nuraeni, Retno Hartati, Hadi Endrawati and

Robertus T Mahendrajaya

Department of Marine Science, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro

(UNDIP) Jl. Prof. Sudharto, SH Kampus UNDIP Tembalang, Semarang, Indonesia

*Corresponding author: Gedung B Ruang 201, Department of Marine Science , Faculty of Fisheries

and Marine Sciences, Universitas Diponegoro (UNDIP) Jl. Prof. Sudharto, SH Kampus UNDIP

Tembalang, Semarang

Email: [email protected]; [email protected]

Abstract

Sea cucumber Acaudina sp is one of the benthic animals which has a very important role for

the benthic ecosystem in a waters. One of its roles is to maintain sediment stabilityand is also

known as a bioturbation animal. The research aims is to study the water quality in ecosystem

sea cucumber Acaudina sp in the Delta Wulan Waters, Demak. The research was conducted

for 3 months (June, July and August 2020). Based on the research result, the type of substrate

in the Delta Wulan Waters is silt has a range 88.55–95.44%. The salinity has a range value is

28 to 35 ppt, the value of the water temperature is 28.6–29.9 ºC. The DO value has a range is

5.0–8.13 ppm, the pH value range is 6.05–7.56. Furthermore, the growth pattern of sea

cucumber Acaudina sp in the Delta Wulan Waters during the observation is allometric

negative.

Keywords: Acaudina sp; Water quality; Delta Wulan; Demak; Indonesia.

A2-13


90

The Distribution Pattern and Description of New Sipunculan Characteristics in

Banda Naira

Ennis Wian Erliani1,*, Majariana Krisanti2 and Yusli wardiatno3

1) Student of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

(Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Environmental Research Center, IPB University, Kampus IPB Darmaga, Bogor 16680, Jawa Barat-

Indonesia

*Corresponding author: Department of Aquatic Resources Management, Faculty of Fisheries and Marine

Sciences, IPB University (Bogor Agricultural University), Kampus IPB Darmaga, Jl. Agatis, Bogor, 16680,

Indonesia.


Abstract

Sipunculans were collected in Banda Naira from October 2019 to February 2020. In this paper

I describe the distribution pattern and characteristics of the Genus Sipunculus (Sipunculus sp.1,

Sipunculus Kaferstein sp.1), Genus Thysanocardia (Thysanocardia sp.1, Thysanocardia sp.2,

Thysanocardia sp.3) and Genus Siphonosoma (Siphonosoma sp.1). The research method used

was purposive sampling. Two stations were selected as sample locations with squared plot size

60x60 cm, divided into 5 subs-plots and repeated 3 times. The specimens were dissected,

observed and compared with available morphological literature. The result showed that the

distribution pattern of sipuncula was irregular, the distribution of holes or dwellings at several

stations shows a varying distance of 10-30 cm from dwelling to other dwellings around 3

meters. The morphological characteristics of the sipunculan are slightly different, so it is

suspected that there are new species in Banda naira.

Keywords: Distribution pattern; New characteristics; Sipunculan.

A2-14

91

Community Structure of Intertidal Macrozoobenthos in Muddy Substrate,

Lubuk Damar, Aceh Tamiang, Indonesia

Ananingtyas S Darmarini1,*, Yusli Wardiatno2,3 Tri Prartono4 and Kadarwan Soewardi2

1) Department of Aquatic Resources, Faculty of Fisheries and Marine Science, Teuku Umar University, Jl.

Alue Peunyareng, Meulaboh 23681, West Aceh, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University, Jalan Raya Dramaga, Kampus IPB Dramaga, 16680 Bogor, West Java, Indonesia 3) Environmental Research Center, IPB University, Kampus IPB Dramaga, Bogor 16680, West Java,

Indonesia 4) Department of Marine Sciences and Technology, Faculty of Fisheries and Marine Science, Bogor

Agricultural University, Bogor 16680, Indonesia

*Corresponding author: Department of Aquatic Resources, Faculty of Fisheries and Marine Science,

Teuku Umar University, Jl. Alue Peunyareng, Meulaboh 23681, West Aceh, Indonesia


Abstract

Large intertidal areas with varying texture percentages can have an impact on the composition

of the presence and abundance of macrozoobenthos. The purpose of this study was to

determine the community structure of benthic animals on a sandy mud substrate at various

distances. This study used the line transect method with variations in the distance A: 0-100 m,

B: 101-200 m, C: 201-300 m, D: 301-400 m and E: 401-500, totaling 10 replications. In the

research location, 11 phyla were found, namely Annelida, Platyhelminthes, Nematoda,

Pogonophora, Sipuncula, Brachiopoda, Nemertina, Moluska, Arthropoda, Cnidaria and

Echinodermata. Phylum Sipuncula dominates 92.9% compared to 10 other families. The

macrozoobenthos density at each sampling distance and time varied. The highest density

reaches 9354 ind.m-2 and the lowest is 857 ind.m-2. The diversity index ranged from 1.82 to

3.70, and the uniformity index was 0.27 to 0.82, respectively. The average dominance index

shows no dominance in the research area. At each observed distance there were differences

in the type and number of macrozoobenthos, this condition is thought to be caused by the

different percentage of texture substrate at each sampling point.

Keywords: Benthic; Diversity; Invertebrate; Low tide; Mangrove ecosystem.

A2-15

92

The Using of Macrozoobenthos Community to Assess Current Condition of the

Urban Lake-Situ Cikaret, West Java

Imroatushshoolikhah1,*, Jojok Sudarso1, Aiman Ibrahim1, Hania Ully Hafizha2, Laela

Sari1 and Denalis Rohaningsih1

1) Research Center for Limnology, Indonesian Institute of Science (LIPI), Jl. Jakarta- Bogor km 46,

Cibinong, Indonesia 2) Universitas Islam Negeri Sunan Gunung Jati, Indonesia, Jl. A.H Nasution, Cibiru, Jawa Barat, Indonesia

*Corresponding author: Research Center for Limnology, Indonesian Institute of Science (LIPI),

Jl. Jakarta- Bogor km 46, Cibinong, Indonesia


Abstract

Situ Cikaret is an urban lake which suffers from anthropogenic activities. The Macrozoobenthos

community has used as bioindicator for water quality. However, finite information about

macrozoobenthos in Situ Cikaret. The research aims to study the macrozoobenthos

community and to evaluate the current condition of Situ Cikaret using this

community. Samples were taken in March and April 2019 in five sites using Ekman Grab and

identification was in the Research Center for Limnology LIPI. CAP-6 for ANOVA-Similarity

(ANOSIM) is used to analyze the significant difference, whereas MVSP 3.22 for Canonical

Correspondence Analysis (CCA) to find the relation between macrozoobenthos and

environment. Pollution degree was determined using the Family Biotic Index (FBI). Water

quality including temperature, pH, Conductivity, Total Dissolved Solids (TDS), ORP, depth,

clarity, Turbidity, Dissolved Oxygen (DO), Total Suspended Solid (TSS) were measured. Ten

groups have been found, Chironomidae, Coleoptera, Tubificidae, Naididae, Glossiphoniidae,

Thiariidae, Ampullariidae, Planorbidae, and Corbiculidae. The dominant family was Tubificidae

(9,525 individu/m2). ANOSIM shows no significant difference (p>0.05) between locations. CCA

shows the abundance of Tubificidae, Chironomidae, Viviparidae, Ampullaridae, Planorbidae,

Corbiculidae has tendency towards the temperature, pH, ORP, Turbidity, DO, TDS, Depth. FBI

ranges between 7.01-10, it can be concluded that Situ Cikaret has severe organic pollution.

Keywords: Situ Cikaret; Urban Lake; Macrozoobenthos.

A2-16


93

Different of Aeration Rate on Hatching Rate, Abnormality, Yolk Sac Absorption,

and Absolute Length of Newly Hatched Masheer Larvae, Tor soro

Iffi Rizkiya1,*, Eri Setiadi2, Etyn Yunita1, and Imam Taufik2

1) Faculty of Science and Technology, Islamic State University Syarif Hidayatullah Jakarta, Indonesia 2) Research Institute for Freshwater Aquaculture and Fisheries Extension, Bogor, West Java, Indonesia

*Corresponding author: Faculty of Science and Technology, Islamic State University Syarif Hidayatullah

Jakarta, Indonesia


Abstract

Masheer, Tor soro is a local freshwater fish species that has an economical value in Asia

including Indonesia. The seed production of this species has been successfully produced in

Indonesia. There are some problems in larvae rearing, especially, high of abnormality and

unstable of survival rate. This is maybe caused by environmental factors such as dissolved

oxygen, temperature, and pH. The purpose of this experiment is to determine of aeration rate

on hatching rate, abnormality, yolk sac absorption, and absolute length of larvae. The

treatment is of this experiment is aeration rate i.e. A) 0 ml/minute; B) 500 ml/minute; C) 1000

ml/minute; D) 1500 ml/minute; E) 2000 ml/minute. The result shows that the aeration rate

affects the abnormality, yolk sac absorption, and absolute length of newly hatched larvae

(p<0.05). The abnormality at 0 ml/minute was the highest (23.23 ± 0.26%) and the lowest (2.84

± 0.36%) at 500 ml/minute. The yolk sac absorption 0.1268 ± 0.0056 mm3/day at 1500

ml/minute was the highest compared to the others (p<0.05). The absolute length of newly

hatched larvae at 1500 ml/minute (4.6435 ± 0.2518 mm) was the highest compared to the

others (p<0.05). The dissolved oxygen value was increased by increasing the aeration rate. The

optimal aeration rate for egg incubation is 1000 ml/minute should be applied in order to

reduce the abnormality and optimize for larvae growth.

Keywords: Aeration rate; Hatching rate; Abnormality; Yolk sac absorption; Tor soro.

B2-1

94

Isolate of Nitrifying and Denitrifying Bacteria Activities Derived from Catfish,

Pangasius sp Culture Pond

Yosmaniar*, Eri Setiadi, and Hessy Novita

Research Institute for Freshwater Aquaculture and Fisheries Extension, Bogor, West Java, Indonesia

*Corresponding author: Research Institute for Freshwater Aquaculture and Fisheries Extension, Bogor,



Abstract

Nitrifying and denitrifying bacteria are very fruitful for controlling water quality in fish culture

because they have a role in convert from toxic chemical compounds into non-toxic

compounds. The purpose of this experiment is to determine the isolates of nitrifying and

denitrifying bacteria activities in terms of percentage of oxidize ammonia, accumulated of total

nitrite and accumulated of total nitrate. Eight isolates bacteria i.e. four isolates for nitrifying

bacteria (NP1, NP2, NP3, and NP4) and four of denitrifying bacteria (DP1, DP2, DP3, and DP4)

were inoculated with the density of 102 cells each. The result showed that NP1, NP2, NP3, and

NP4 isolates have an ability to oxidize ammonium were almost the same i.e. 99.57, 99.37, 99.89,

and 99.83%, respectively. The NP1-NP4 isolates on total of nitrite accumulated were 0.06, 0.05,

0.06, and 0.06% a while total of nitrate accumulated were 1.56, 1.65, 2.08, and 1.65%

respectively. The isolates of DP1, DP2, DP3, and DP4 have an ability on reducing of total nitrate

were 99.9, 100.0, 99.9, and 99.9% respectively while the accumulated of total nitrite were 0.01,

0.04, 0.00, and 0.00%. The bacteria isolates can be recommended for controlling chemical

compound in the water is NP2 and DP2 isolates.

Keywords: Isolate; Nitrifying; Denitrifying; Activity.

B2-2

95

Physico-chemical Characteristics of Rhizopus sp.-Fermented Fish Feed Pellets

Containing Black Soldier Fly Larvae (Hermetia illucens) Meal

C M Hariyono1,*, Yunianta1, Harijono1, C Sriherwanto2, I Suja’i2, A Nadaviana2, H

Junaedi4, R Ma’hadah3 and Komarudin3,4

1) Department of Agricultural Product Technology, Faculty of Agricultural Technology, Brawijaya

University, Malang, Indonesia 2) Biotech Center, Agency for the Assessment and Application of Technology (BPPT), Tangerang

Selatan, Indonesia 3) Nano Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten, 15314, Indonesia 4) Nanobubble Karya Indonesia, Ltd., Jl. Raya Serpong, South Tangerang, Banten, 15314, Indonesia

*Corresponding author: Department of Agricultural Product Technology, Faculty of Agricultural

Technology, Brawijaya University, Malang, Indonesia


Abstract

In fish aquaculture, feed cost contributes the highest share in the total production cost. The

increase in fishmeal price and the high cost of commercial fish feeds have prompted the search

for alternatives. Thus, considerable research has been carried out to develop farm-made feed

that requires simpler methods and cheaper production costs. This study aimed at developing

farm-made fish feed using simple equipments, locally available materials, and inexpensive

fungal-based bio-floating technique. A combination of using black soldier fly (Hermetia

illucens) larvae meal as a fish meal replacement and Rhizopus sp. fermentation to provide

floatability was used. An experiment using three different Rhizopus sp. inoculum

concentrations (1, 2, and 3% w/w) and 3 different fermentation duration (30, 40, and 50 h) was

designed, with unfermented feed as control. Results showed that fermented floating feeds

gained better nutritional value and physical characteristics (p<0.05). The optimised treatment

resulted in a fermented feed with the protein content of 29.72%; fiber 12.13%; fat 26.57%; and

ash 7.83%. Relative to the unfermented control, all of the fermentation treatments produced

feeds with high floating ability and water stability.

Keywords: Aquaculture; Feed; Fermentation; Larvae; Rhizopus.

B2-3


96

Effect of Different Feed Restriction on Growth and Hematology of Red Tilapia

(Oreochromis spp)

Adam Robisami1,*, Kartiawati Alipin1 and Bambang Gunadi2

1) Departement of Biology, Faculty of Matematics and Natural Sciences, Padjajaran University. Jl. Raya

Bandung-Sumedang Km.21 Jatinangor, Sumedang West Java. 2) Research Institute for Fish Breeding. Jl Raya 2 Sukamandi Pantura Subang, West java

*Corresponding author: Departement of Biology, Faculty of Matematics and Natural Sciences,

Padjajaran University. Jl. Raya Bandung-Sumedang Km.21 Jatinangor, Sumedang West Java.


Abstract

In an effort to maximize aquaculture profits, fish farmers have adopted various feed

management strategies. The aim of this study was to investigate the effects of feed restriction

and refeeding after fasting on growth and hematology of juvenile red tilapia (Oreochromis

spp.). Fish were divided into five groups with four replications: continuous feeding for 28 days

(F28), 7 days of starvation and 21 days of refeeding (S7F21), 14 days of starvation and 14 days

of refeeding (S14F14), 21 days of starvation and 7 days of refeeding, and continuous starvation

for 28 days (S28). Fish were sampled every 7 days for measures growth and hematology. The

results of the growth measurements, condition factor and hepato-somatic index decreased

significantly during starvation and recover significantly after re-feeding (P<0.05).

Hematological parameters such as RBCs, WBCs, hematocrit, and hemoglobin increased

significantly (P<0.05), but after re-feeding decreased significantly in consecutive times

(P<0.05). As for the blood glucose levels decreased during fasting and gradually increased

after re-feeding. This study has shown that starvation fish gained weight continuously during

re-feeding, displaying compensatory growth and can improve fish health through significant

increases in blood parameters. Fasting for up to 28 days did not cause fish mortality.

Keywords: Feeding regime; Growth; Hematology; Red tilapia.

B2-4


97

Reproductive and Larval Performance of Artificially Spawned Javaen Barb

Puntius orphoides from Two Populations

A Iswantari1, W Cahyanti2,*, F P Putri2, D A Hedianto3, V A Prakoso2 and A H Kristanto2


University, Jl. Agatis, IPB Campus Darmaga Bogor, West Java, Indonesia 16680 2) Research Institute for Freshwater Aquaculture and Fisheries Extension, Ministry of Marine Affairs and

Fisheries, Jl. Sempur No. 1, Bogor, West Java, Indonesia 16129 3) Research Institute for Fisheries Enhancement, Ministry of Marine Affairs and Fisheries, Jl. Cilalawi No.

1 Jatiluhur, Purwakarta, West Java, Indonesia 41152

*Corresponding author: Research Institute for Freshwater Aquaculture and Fisheries Extension, Ministry

of Marine Affairs and Fisheries, Jl. Sempur No. 1, Bogor, West Java, Indonesia 16129


Abstract

Indonesian freshwater are rich of fish biodiversity, one of them is javaen barb. In terms of

domestication, it is important to ensure the fish breeding and larval rearing in ex-situ

environment. Therefore, studies on artificial spawning are needed to strengthen the

information about reproduction of javaen barb in ex-situ environment for domestication and

aquaculture purposes. This study aimed to evaluate the reproductive and larval performance

in artificially spawned javaen barb within two populations. Broodfish were obtained from West

Java (Tasikmalaya and Cianjur population), kept on the fish nets (2 × 2 × 1 m) inside the large

ponds for two months of adaptation. Broodfish were attached by RFID chips and periodically

observed their size and gonad maturity level. Ripen broodfish were artificially spawned. Several

reproductive parameters were observed during the experiment, such as egg diameter,

fecundity, fertilization rate (FR), hatching rate (HR), and hatching time. Moreover, larval

performance were also observed. The results showed that javaen barb successfully spawned

with 11 hours of latentcy period. Javaen barb from Tasikmalaya population had a significantly

higher fecundity than that of the Cianjur population. Meanwhile, other parameters observed

in relation with reproductive and larval performance were not significantly different.

Keywords: Artificial spawned; Fecundity; Larval performance; Puntius orphoides; Reproductive.

B2-5


98

Effects of Nanobubble Aeration on Water Temperature and Oxygen

Consumption of Penaeus vannamei Post Larvae 8

Lily Susanti1,*, Suyud Warno Utomo1, Noverita Dian Takarina2, David Febraldo1, Nurul

Taufiqu Rochman3, Henry Kasman Hadi Saputra4, Dedi Cahyadi5,6, Hardi Junaedi5,7,

Rizki Nugraha Saputra5,6 and Asri Ifani Rahmawati6

1) School of Environmental Science, Universitas Indonesia, Jl. Salemba Raya 4, Jakarta 10430, Indonesia. 2) Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Pondok

Cina, Beji, Depok, West Java 16424, Indonesia. 3) Research Center for Metallurgy and Materials, Indonesian Institute of Sciences, PUSPITEK, South

Tangerang, Banten, 15314, Indonesia. 4) Department of Aquaculture, Vocational School, IPB University, Jl. Kumbang 14, Bogor, West Java,

16151, Indonesia 5) Nanobubble Karya Indonesia, Ltd., Jl. Raya Serpong, South Tangerang, Banten, 15314, Indonesia. 6) Nano Center Indonesia, Jl. Raya Serpong, South Tangerang, Banten, 15314, Indonesia. 7) Department of Agricultural Industry, IPB University, Jl. Raya Dramaga, Bogor, West Java, 16680,

Indonesia.

*Corresponding author: School of Environmental Science, Universitas Indonesia, Jl. Salemba Raya 4,

Jakarta 10430, Indonesia.


Abstract

Water temperature (t) and oxygen consumption are important indicators for Penaeus

vannamei. The preferred P. vannamei shrimp farming is indicated by low water temperature

and oxygen consumption and this can be achieved using nanobubble aeration. Here this study

aims to assess the water temperature and oxygen consumption of P. vannamei Post Larvae 8

(PL8). In this experimental study, PL8 at a density of 200/liter were treated with nanobubble

aeration (16 ppm) and compared with control (without nanobubble). The experiments were

conducted with 5 replications. Principal Component Analysis was applied to calculate the

significance level of treatments, The result shows the nanobubble effects (p < 0.005) on

temperature in which t treatment (23.07 0C; 95%CI: 22.9 to 23.3) was lower than t control (27.17 0C; 95%CI: 27.1 to 27.2). The apparent effects were also observed in oxygen consumption (p <

0.005) in which the nanobubble can reduce the oxygen consumption up to 66%. To conclude

the nanobubble has a positive effect on P. vannamei shrimp farming since nanobubble can

make oxygen last longer in the water and reduce oxygen consumption as well.

Keywords: Consumption; Nanobubble; Oxygen; Shrimp; Temperature.

B2-6

99

Application of Loop Mediated Isothermal Amplification (LAMP) Method for

Detection of Edwarsiella ictaluri on Patin (Pangasius sp.) fish

Hessy Novita, Uni Purwaningsih and Angela Mariana Lusiastuti

Research Institute of freshwater Aquaculture and Fisheries Extension

*Corresponding author: Research Institute of freshwater Aquaculture and Fisheries Extension


Abstract

Edwarsilla ictaluri is a potential bacteria as pathogen causing Enteric Septicemia of catfish

(ESC) and also still a big problem in catfish because it can cause death to 100%. This study

aims to develop diagnosis DNA based on molecular using Loop Mediated Isothermal

Amplification Method (LAMP). Detection DNA of E. ictaluri bacteria from 9 isolates was

extracted at Fish Health Laboratory, in depok. Used four pieces of specific primers from Eip 18

gene of Edwarsiella ictaluri. DNA amplification, for LAMP reactions without a thermocycler

machine, using only an incubator / waterbath / oven, at 65oC for 1 hour. The result of detection

with LAMP, showed that 8 isolate were positive of E. ictaluri marked by SYBR green I color

change from orange to green. While 1 isolate was negative marked with SYBR Green remain

orange. The LAMP results are also verified with PCR using outer primer F3 and B3 which

showed positive E. ictaluri. LAMP can detect ESC disease with simple, quickly, easily,

economical in 1 hour compared by PCR and LAMP method can be used as an alternative

diagnostic test fish diseases, especially in areas with limited laboratory infrastructure.

Keywords: Edwarsiella ictalurid; Loop Mediated Isothermal Amplification Method (LAMP);

Patin; Eip 18 gene; SYBR Green.

B2-7


100

Optimization of Stocking Density of Milk Fish (Chanos chanos) in Polyculutre

System with Seaweed (Gracilaria sp.) on Traditional Earthen Pond

Y R. Widyastuti*, Esetiadi and I Taufik

Research Institute for Freshwater Aquaculture and Fisheries Extention

Jl. Sempur No.1 Bogor 16154 - Indonesia

*Corresponding author: [email protected]

Abstract

To determine the optimal stocking of milk fish in polyculture with seaweed in traditional

earthen pond is the objective of this study. Increasing production of both commodities and

environment viability are the goal. The study was carried out in March until June 2019 in

Karawang, West Java. The milkfish stocking density is the treatment, A: 3 fish/ container (2,500

fish/ ha); B: 6 fish/ container (5,000 fish/ ha) and C: 9 fish/ container (7,500 fish/ ha). The weight

of seaweed planted is the same in all treatments, which is 900 grams (1 ton of seaweed /ha).

Waring as research container in measuring 3 x 3 meters was placed in the middle of the pond.

The main variables analyzed were growth rate, absolute weight, daily growth rate, survival and

final weight of milkfish. For seaweed, weight and length gain, absolute weight and daily growth

rate. The observed water quality includes temperature, pH, DO, salinity and brightness. The

results showed that the milkfish density of 3 fish/ container gave the highest (P<0.05) of

absolute weight 25.43 (± 1.75) g, and survival rate 88.9 (± 1.27)%. ADG (P>0.05). The lowest

weight of seaweed occurred in the treatment of 9 fish/ container which is 74.67 g. The results

of this study recorded the optimal number of milk fish stocking is 3 fish/ container or 2,500

fish/ha. The higher stocking density of milkfish cannot accelerate the growth of seaweed.

Keywords: Milk fish; Optimal stocking; Polyculture; Seaweed.

B2-8


101

How to Make the Ally of Inland Fisheries and Inland Aquaculture: A Review

Irkhamiawan Ma’ruf1,2,*, Mohammad Mukhlis Kamal3, Arif Satria4 and Sulistiono3

1) Aquaculture Departement, Faculty of Agriculture, Universitas Muhammadiyah Palembang, Jl. Jend. A.

Yani 13 Ulu Plaju, Palembang, Indonesia. 2) The Study Program of Natural Resources and Environmental Management Science, Postgraduate

School, IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang Jl. Raya Padjajaran

Bogor 16151. Kota Bogor. Indonesia. 3) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia. 4) Department of Communication Science and Community Development, Faculty of Human Ecology,

IPB University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680,

Indonesia.

*Corresponding author: The Study Program of Natural Resources and Environmental Management

Science, Postgraduate School, IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang

Jl. Raya Padjajaran Bogor 16151. Kota Bogor. Indonesia.


Abstract

Inland fisheries are a significant sector to provide affordable nutritious and income for the

community, especially in rural areas. Increased pressure on inland waters causes a decrease in

resources, so that fish catches are declining, fish sizes are getting smaller, and some species

are difficult to catch. Efforts to increase production from inland waters can be reached by

inland aquaculture. Unlike aquaculture with controlled conditions, inland aquaculture is carried

out by adapting to inland waters characteristics. This study aims to describe the characteristics

of various types of inland waters, especially in OKI Regency, South Sumatra, Indonesia and

provide guidance in conducting inland aquaculture based on the characteristics of the waters.

The description is performed by reviewing various journals and scientific publications which

verified by expert judgment. Essential points in describing inland waters are water typology,

fish resources, water quality and social characteristics of the community. From the input of

inland waters characteristics based on these four critical points, guidance is given to carry out

inland aquaculture in terms of selecting aquaculture methods, selecting fish species and

stocking seed criteria as well as institutions in fish ownership issues.

Keywords: Culture-based fisheries; Inland aquaculture; Inland waters; OKI.

B2-9


102

Effect of Heterotrophic Bacteria on the Growth of Tilapia (Oreochromis

niloticus) Cultivated in Brackish Water

Irwan Fffendi1,*, Feliatra F2, Tri Emrinelson1, Ismail Abdurrahman Siregar1 and Adelina

adelina1

1) Faculty of Fisheries and Marine Sciences. University of Riau. Kampus Binawidya, Kecamatan Tampan.

Pekanbaru. Indonesia. 2) Faculty of Fisheries and Marine Sciences. University of Riau. Kampus Binawidya, Kecamatan Tampan.

Pekanbaru. Indonesia. Jl. Garuda 2 No. 2. Labuh Baru Timur, Kecamatan Payung Sekaki, Pekanbaru.

Indonesia

*Corresponding author: Faculty of Fisheries and Marine Sciences. University of Riau. Kampus

Binawidya, Kecamatan Tampan. Pekanbaru. Indonesia. Jl. Garuda 2 No. 2. Labuh Baru Timur,

Kecamatan Payung Sekaki, Pekanbaru. Indonesia


Abstract

Tilapia is a commercial fish cultivated in both fresh water and seawater. Nowadays, the fishes

are still attacked by pathogenic bacteria. Some probiotics have overcomed this problem. This

study aimed to examine the effect of heterotrophic bacteria administration on survival rate,

absolute weight growth, heterotrophic bacterial population growth of the fish and the water

quality. The study used a factorial experimental design a x b, where a factor was method of

administering heterotrophic bacteria and b factor was the species of isolate used. Factor a

consists of introduction to fish via feed (a1) and via water test media (a2). Factor b consisted

of b1 (diet without heterotrophic bacterial treatment), b2 (diet with heterotrophic bacterial

isolate J), b3 (diet with heterotrophic bacterial isolate N), b4 (diet with heterotrophic bacterial

combined isolates B, C, D, J (Vagococcus fluvialis), H, N; Bacillus cereus). The fishes were reared

in a 60 l container. Administering via feed of heterotrophic bacteria showed no significant

effect to survival rate of tilapia. While administering via water showed a signifance influence

to the survival rate. Both administration method caused better absolute growth rate. However,

administration of the bacteria did not affect the heterotrophic bacterial populations in the

water.

Keywords: Brackish water; Heterotrophic bacteria; Probiotic.

B2-10

103

Increasing the Water Stability of Sinking Feed Using Edible Fungal Hyphae for

Reducing Aquatic Feed Waste: A Laboratory Study

Catur Sriherwanto1,*, Rizky Hastuti Purwaningsih2, Etyn Yunita2 and Imam Suja’i1

1) Biotechnology Laboratory, Agency for the Assessment and Application of Technology (BPPT),

Building 630, Science and Technology Park (PUSPIPTEK), South Tangerang 15314, Banten, Indonesia 2) Biology Department, Science and Technology Faculty, Syarif Hidayatullah State Islamic University, Jl.

Ir. H. Djuanda No. 95, South Tangerang 15412, Banten, Indonesia

*Corresponding author: Biotechnology Laboratory, Agency for the Assessment and Application of

Technology (BPPT), Building 630, Science and Technology Park (PUSPIPTEK), South Tangerang 15314,

Banten, Indonesia


Abstract

Binding agents and an extruder machine are commonly used to produce aquafeeds with very

good water stability, thus preventing feed from disintegration and being wasted. This

technique is, however, complicated and costly. An alternative of using living microorganisms

as a binding agent without a high-temperature extrusion technique has been studied. Thus,

this research aimed at increasing the water stability of sinking aquafeed using tempeh mould’s

hyphae as a binding agent through solid fermentation. Commercial sinking pellets were

subjected to 3 different treatments: fermentation and drying, fermentation without drying, and

drying without fermentation. Results showed that the unfermented feed disintegrated easily

and sank in the water. In contrast, the fermented feeds, with or without drying, showed much

better stability and floating ability in water. The combination of fermentation and drying

produced the highest water stability of 73.59 ± 12.13% as well as the highest floatability of

86.67 ± 5.77% at the 120th minute. These values were higher than the undried fermented feed

(36.90 ± 0.83 water stability and 74.0 ± 8.94% floatability). Thus, the fungal hyphae possessed

the ability to bind the feed constituents, enhancing the water stability and floatability, which

could be further improved by drying.

Keywords: Fermentation; Floatability; Hyphae; Feed; Stability.

B2-11


104

Sargassum-Based Potential Valuable Material in Indonesia – An Overview

Muhammad Safaat1,*, Silvester Tursiloadi1, Bayu Perisha2 and Firman Zulpikar2

1) Research Center for Chemistry, Indonesian Institute of Science (LIPI), Kawasan PUSPIPTEK, Serpong,

Tangerang Selatan, Banten 15314, Indonesia 2) Research Center for Oceanography, Indonesian Institute of Science (LIPI), Jl. Pasir Putih I, Ancol

Timur, Jakarta Utara, 14430, Indonesia

*Corresponding author: Research Center for Chemistry, Indonesian Institute of Science (LIPI), Kawasan

PUSPIPTEK, Serpong, Tangerang Selatan, Banten 15314, Indonesia


Abstract

Nanoparticles have received much recent attention in areas such as chemistry, physics,

materials science, life sciences and engineering. Many physical and chemical methods have

disadvantages such as high costs, the use of chemicals that are harmful to the environment

and health. The green nanoparticle synthesis approach, using plant extracts as a capping agent

of nanoparticles, is the right solution to produce nanoparticles that are effective and

environmentally friendly. Micro and macroalgae in the use of nanoparticle synthesis are

increasingly being developed. However, the use of Sargassum in chemical applications has not

been fully explained, and there are still some drawbacks that must be overcome. Sargassum

spp. biomass has been recognized as a natural, renewable, and cost-effective material to

become a capping agent for nanoparticles. This review is a summary highlighting the potential

of metal-Sargassum composite based materials as an alternative to biological protective

activities, such as antibacterials. Synthesis and characterization of materials, key factors

influencing material performance, and distribution of Sargassum in Indonesia are considered

by the Government of Indonesia and investors in seeing opportunities to use Sargassum as an

advanced material.

Keywords: Characterization; Distribution; Green synthesis; Indonesia; Nanoparticle;

Sargassum sp.

B2-12

105

Alteration of Inflammation Cytokines in Lipopolysaccharide-Activated

Lymphocyte by Crude Extract of Taurine from Sea Slugs Paraonchidium via

Down-Regulation of of NF-kB Pathway

Hafiludin1,2,*, Sri Andayani3, Hartati Kartikaningsih3, Muhamad Firdaus3 and Mojiono4

1) Fisheries and Marine Science Postgraduate Program, Faculty of Fisheries and Marine Science,

University of Brawijaya. Jl. Veteran Malang 65149, East Java, Indonesia 2) Department of Fisheries and Marine Science, Faculty of Agriculture, University of Trunojoyo Madura.

Jl. Raya Telang, Kamal, Bangkalan 69162, East Java, Indonesia. 3) Department of Aquatic Resource Management, Faculty of Fisheries and Marine Science, University

of Brawijaya. Jl. Veteran Malang 65149, East Java, Indonesia 4) Department of Agroindustrial Technology, Universitas of Trunojoyo Madura. Jl. Raya Telang, Kamal,

Bangkalan 69162, East Java, Indonesia.

*Corresponding author: Department of Fisheries and Marine Science, Faculty of Agriculture, University

of Trunojoyo Madura. Jl. Raya Telang, Kamal, Bangkalan 69162, East Java, Indonesia. Tel.: +62-31-

3011146.


Abstract

Free amino acid taurine is found in sea slugs. It has been used as a preventive agent for

cardiovascular disease and anti-inflammatory disorders. Inflammation takes place in the

presence of lipopolysaccharide (LPS), as a specific inducer, which provokes activation of

molecular signals controlling the development of pro-inflammatory and anti-inflammatory

cytokines. This study aimed to investigate the effect of taurine extract from shell-less sea slugs

on the inhibition of pro-inflammatory cytokine IFN-γ and anti-inflammatory cytokine IL-10

expression in LPS-induced mice lymphocytes. The crude taurine was extracted using water

solvent maceration of the sea slug's mucus. Splenocytes of the mice were cultured for five days

in RPMI-1640 medium and analyzed by flow cytometry. As the result, crude taurine extracts

substantially suppressed NF-kB expression in T cells, found in all concentrations. The best

inhibitory effect was attributed to 500 µg/mL, significantly different compared with control

(p<0.05). Additionally, the extract could inhibit the release of CD4+ IFN-γ+ pro-inflammatory

cytokines at 500 µg/mL compared with control (p<0.05), while it improved expression of

CD4+IL-10+ anti-inflammatory cytokines at 500 µg/mL compared with control (p<0.05). These

results indicates that taurine crude extract isolated from sea slug Paraonchidium could be a

promising marine source as anti-inflammatory agent.

Keywords: Taurine; Sea slug Paraonchidium; Anti-inflammatory; Lipopolysaccharide.

B2-13


106

Characterization, Antioxidant and Antibacterial activity of cultivated sea

cucumbers from Bali, Indonesia

Diah Anggraini Wulandari*, Tutik Murniasih, Martha Sari, Gita Syahputra, Eris

Septiana, Febriana Untari, Iskandar Azmy, Ardi Ardiansyah and Masteria Yunovilsa P

Research Centre for Biotechnology, Indonesian Institute of Science (LIPI), Jl Raya Bogor Km 46,

Cibinong, Bogor, Jawa Barat, Indonesia 16911

*Corresponding author: Research Centre for Biotechnology, Indonesian Institute of Science (LIPI), Jl

Raya Bogor Km 46, Cibinong, Bogor, Jawa Barat, Indonesia 16911


Abstract

Sea cucumber is marine commodity widely distributed throughout Indonesian waters,

Indonesia was the largest producer of dried sea cucumber exports reached 457 tons. About

40-80% smoked/dried sea cucumbers from Indonesia exported to Hongkong, Japan, Korea,

Singapore, Taiwan, Malaysia and Australia. Nowdays, Indonesia has been able to cultivate sea

cucumbers as one of the main commodities. This study aims to characterize seacucumber, and

to determine the antioxidant, antibacterial activity of cultivated sea cucumbers. Sea cucumbers

are cultivated in the pond for 12 months, with the weight 160.9 grams, and 15.3 cm at harvest.

The sea cucumbers were characterized by measuring their proximate and heavy metals

content. The samples were extracted using water at 60oC, 70oC, 80oC, and soxhletation with

70% ethanol as solvent. Furthermore, the antibacterial analysis was tested on three bacteria,

namely Staphylococus aureus, Bacillus Subtilis, and Escherichia colli and antioxidants were

analyzed using the ABTS method. The results showed that the sea cucumber protein content

was 6.95%, fat content was 0.78%, and carbohydrate was 0.3%. Heavy metal content of

cultivated sea cucumbers, including as 1.12 mg / kg, Pb 0.15 mg / kg, Ni, Hg, and Cd were not

detected. Antibacterial test results showed that the fresh sea cucumber extracted using the

soxhletation method was able to inhibit the growth of bacteria with an inhibition diameter of

8.95 mm in Staphylococus aureus bacteria and 8.45 in Bacillus subtilis bacteria. The highest

antioxidant activity was found in samples of dried sea cucumbers extracted using the

soxhletation method with % inhibition IC50 value 62.72 g/mL, fresh seacucumber soxhletation

methode with IC50 value 267.92 g/mL, infusion with IC50 value 655.71 g/mL, water extract

60oC of fresh seacucumber with IC550 value 672.11g/mL, and water extract 60oC of dried sea

cucumber with IC50 value 991.92 g/mL. Thus, the best sea cucumber extraction is using the

soxhletation method.

Keywords: Antioxidant; Antibacteria; Caracterization; Extraction; Seacucmber; Soxhletation.

B2-14

107

Reproduction Performance of Female Freshwater Prawn, Macrobrachium

rosenbergii, Through Dietary Administration of Medroxyprogesterone Acetat

Fajar Anggraeni1,*, Desak Made Malini2 and Imron3

1) Post Graduate Student of Departement of Biology, Faculty of Mathematics and Natural Sciences,

Padjajaran University. Jl. Raya Bandung-Sumedang Km.21 Jatinangor, Sumedang West Java. 2) Departement of Biology, Faculty of Mathematics and Natural Sciences, Padjajaran University. Jl. Raya

Bandung-Sumedang Km.21 Jatinangor, Sumedang West Java. 3) Research Institute for Fish Breeding. Jl Raya 2 Sukamandi Pantura, Patokbeusi Subang, West java

*Corresponding author: email: Post Graduate Student of Departement of Biology, Faculty of

Mathematics and Natural Sciences, Padjajaran University.


Abstract

Giant freshwater prawns are one type of the Macrobrachium genus that are profitable,

resistance to disease and easy cultivation. One of the problems in giant freshwater prawn

rearing is the presence of female prawns laying eggs during rearing. The inhibition of gonad

maturation has been done in a hormonal manner, one of which is using medroxyprogesterone

acetate (MPA). The use of medroxyprogesterone acetate (MPA) in giant prawns given by

injection has been suppress the gonad maturity index (IKG), gonad development, and increase

the growth rate. But, giving MPA by injection can increase stress and mortality in giant prawns,

application of MPA through feed it is expected to reduce mortality. The purpose of this study

was to examine the through dietary administration of medroxyprogesterone acetate hormone

on the reproductive performance of female giant freshwater prawns. Medroxyprogesterone

acetate at concentrations of 0, 50, 100 and 150 mg/ml/kg feed was included in commercial

artificial feed that were fed to the freshwater prawn for 30 days. Medroxyprogesterone acetate

at concentrations of 50, 100 and 150 mg/ml/kg feed significantly inhibited maturation and

increased growth of female giant freshwater prawn. This research is the first reported use of

dietary administration of medroxyprogesterone acetate to Macrobrachium rosenbergii.

Keywords: Feed; Maturation; Medroxyprogesteron; Growth; Macrobrachium rosenbergii.

B2-15


108

A Study of Prediction and Factors of Mass Mortality in Mariculture using

Machine Learning

Kojiro Inoue1,*, Reagan Septory2, Hatim Albasri3 and Masaaki Wada4

1) Graduate School of Systems Information Science, Future University Hakodate, 116-2 Kamedanakano,

Hakodate, Hokkaido, 0418655, Japan, [email protected] 2) Research Institute for Mariculture and Fisheries Extension, Jl. Br. Gondol, Kec. Gerokgak, Kab.

Buleleng, Kotak Pos 140, Singaraja, Bali 81101, Indonesia, [email protected] 3) Center for Fisheries Research, Ministry of Marine Affairs and Fisheries, Gedung BRSDMKP II, Jl. Pasir

Putih II, Ancol Timur 14430, Jakarta utara, Indonesia, [email protected] 4) School of Systems Information Science, Future University Hakodate, 116-2 Kamedanakano,

Hakodate, Hokkaido, 0418655, Japan, [email protected]

*Corresponding author: Graduate School of Systems Information Science, Future University Hakodate,

116-2 Kamedanakano, Hakodate, Hokkaido, 0418655, Japan


Abstract

This study aimed to reduce fish loss in marine aquaculture (mariculture) in Indonesia. In

Indonesia, mariculture is an important industry that is expected to grow in the future. However,

production is unstable and mass mortality of fish often occurs because appropriate technology

has yet to be established. To solve this problem, we have created mariculture big data

comprised of fish farm information and marine environmental data, and examined machine

learning models using Random Forest to predict the occurrence of mass mortality at a fish

farm using the data. Results showed the average accuracy of the proposed models was 0.713.

Subsequently, we simulated fish loss based on the prediction models and found that the

number of fish lost was up to 62.2% lower than the actual loss. Thus, the models were effective

in predicting the occurrence of mass mortality and reducing fish loss. Moreover, it was found

that variables with higher importance for the prediction were fish mortality, ocean current of

north-south direction and amount of trash fish feed. Therefore, it was suggested that renewing

the seawater in a bay was important for farming fish health. In addition, trash fish feed had

concerns about hygiene.

Keywords: Fish loss; Mariculture; Indonesia; Prediction.

B2-16






109

Bycatch in Glass Eel Fishery of Rivers and Estuaries of Sukabumi, West Java

Ronny Irawan Wahju1*, Selia Hermawati2, Agus Jaenudin2, Farid Rizal Fachri2,

Mohammad Iqbal2, Endan Sutendi3, M. Mukhlis Kamal4 and Kenzo Kaifu5

1) Department of Resourcess Utilization, Faculty of Fisheries and Marine Sciences, IPB University (Bogor

Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) WWF Indonesia-Marine and Fisheries Program, Jl. Pemuda 1 no 2, Renon, Denpasar, Bali 80226 4) WWF Indonesia 5) Faculty of Law Chuo University, 742-1 Higashinakano, Hachioji, Tokyo, 192-0393 Japan

*Department of Fisheries Resources Utilization, Faculty of Fisheries and Marine Sciences, IPB University

(Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia

E-mail address: [email protected] (C. Author)

Abstract

By-catch percentage in capture fisheries indicates the efficacy of fishing gears used in glass

eel fishery. The early life stage of anguillids encounters seasonally at rivers and estuaries of

Sukabumi and is traditionally caught using sirib (hand lift net) and bubu (trap). The aim of this

study was to analyze fish composition and community structure caught by the gears collected

from five rivers and estuaries, i.e. Cimandiri, Cikaso, Ciletuh, Cibuni, and Cikarang. The research

was conducted from July 2019 to January 2020 with monthly interval sampling. The catch was

brought to laboratory, identified morphologically, and counted for each identified taxa. By

percentage, non-glass eels were analyzed based on order, family, and species, whereas

biodiversity and community structure was calculated by Shannon-Wiener (H’), Pielou Evennes

(E), and Simpson dominated (d) indices. The results showed that the highest catch composition

was found in Cikarang River compared to others. Total by-catch collected comprised of 61

taxa from 3 classes; 17 taxa belong to class malacostraca, 4 taxa of gastropodes, and 40 fish

species of class Actinopterigii. By catch composition was higher collected by lift net compared

by trap.

Keywords: Bycatch; Sukabumi; Juvenile; Fishing Gears.

C2-1

110

Socio-Economic Influence of Fishing Ground Development of Freshwater Eels

(Anguilla spp.) in Cimandiri River

Marfian Dwidima Putra1,2,*, Hefni Effendi2,3, Mohamad Mukhlis Kamal3, and Taryono

Kodiran3

1) Department of Natural Resources and Environmental Management Science, Multidiciplinary Program

of Graduate School IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang, Jl.

Raya Pajajaran No. 1, Bogor 16127, Indonesia 2) Environmental Research Center (PPLH), IPB University, Jl. Lingkar Akademik Kampus IPB Dramaga,



*Corresponding author: Department of Natural Resources and Environmental Management Science,

IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1,

Bogor 16127, Indonesia


Abstract

Cimandiri River is highly potential for freshwater eel resources in Sukabumi Regency. High

exploitation rate on this eel combined with anthropogenic impacts cause considerable threat

to the sustainability of eel fisheries in the river. This study aims to analyze the socio-economic

impact of the freshwater eel fisheries and its implementation in managing this fishery in

Cimandiri River. Research data was based on indepth interview conducted in July 2020 and

largely supported by secondary data for determine environmental quality. Data analysis was

performed by means scoring and swot methods. The results demonstrated that environmental

quality in the river remains in a good quality for the growth of eels. Freshwater eel fishing are

based on several motives, including being the main catch of fishermen, supporting the

economy of the community around the river, and hobby for fishermen in upstream.

Stakeholders in Cimandiri river have a big influence on the sustainability of eel resources. In

the development of freshwater eels fishing ground, the most influencing of eel resources are

Marine and Fishery Office, eel collectors, and eel processing company. Programs that have

been implemented by stakeholders are forming pokmakwas, restocking glass eel, cleaning the

river, and socializing.

Keywords: Cimandiri River; Eel; Environmental; Stakeholders.

C2-2


111

Perception of Glass Eel Fishermen Affecting the Utilization in the River Estuary

of Sukabumi District

Iftitah Rahmi1,*, Mohammad Mukhlis Kamal2 and Yudi Setiawan3,4

1) Department of Natural Resources and Environmental Management Science, Multidiciplinary Program

of Graduate School IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang, Jl.

Raya Pajajaran No. 1, Bogor 16127, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Department of Forest Conservation and Ecotourism, Faculty of Forestry and Environment, IPB

University (Bogor Agricultural University), Jl. Lingkar Akademik Kampus IPB Dramaga, Bogor 16680,

Indonesia 4) Center for Environmental Research Center (PPLH), IPB University, Jl. Lingkar Akademik Kampus IPB

Dramaga, Bogor 16680, Indonesia

*Corresponding author: Department of Natural Resources and Environmental Management Science,

IPB University (Bogor Agricultural University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1,

Bogor 16127, Indonesia


Abstract

Sukabumi District is one of the areas that supply glass eel to fulfill the demand of ell cultivation

companies in Indonesia. Fishermen cathes as many as possible of glass eel resources because

of its highly economic value. So that the catching activity causes the level of glass eel utilization

to reach overexploitation. The socio-economic characteristics of fishermen are a driving factor

for fishermen knowledge in supporting the sustainability of eel resources in Indonesia. This

study aims to determine the socio-economic characteristics of glass eel fishermen that affect

the perceptions and behavior of fishermen in fishing activities. Data collection was carried out

through indepth interviews, field observations, and literature studies with data analysis was

carried out in a descriptive qualitative and quantitative method. The results showed that the

respondents chose to keep catching the glass eel even though the selling price fell. At the

Cikaso estuary, fishermen modify their traps, in addition to using sirib and anco, to adjust the

conditions of the glass eels in the waters. At the Cimandiri estuary, the fishing gear used is

only sirib and there is a POKMASWAS community that involves Cimandiri fishermen in coastal

ecosystem conservation activities.

Keywords: Glass eel; Socio-economic; Fishermen perception; Eel resources sustainability.

C2-3

112

Resources Dynamics Impact to Fishers’ Resilience

Rani Hafsaridewi1,*, Sulistiono2, Sonny Koeshendrajana1, Dewayany Sutrisno3 and

Achmad Fahrudin2

1) Research Center of Marine and Fisheries Socio Economic, Ministry of Marine Affairs and Fisheries.

Jalan Pasir Putih I Ancol Timur Pademangan, Jakarta Utara 14430, Indonesia 2) Department of Aquatic Resource Management, Faculty of Fisheries and Marine Science, Bogor

Agricultural University. 16680. Bogor, West Java, Indonesia 3) Geospatial Information Agency, Indonesian Institute of Science. 16911. Cibinong, West Java,

Indonesia.

*Corresponding author: Research Center of Marine and Fisheries Socio Economic, Ministry of Marine

Affairs and Fisheries. Jalan Pasir Putih I Ancol Timur Pademangan, Jakarta Utara 14430, Indonesia.


Abstract

Fishers residing in small islands are heavily dependent on the surrounding resources. The

dynamics of these resources influence the fishers' level of resilience. The purpose of this study

is to analyze the correlation between the fishers' reliance and resources available using a

dynamic model. The method used is dynamic system analysis. The research was conducted

between March-April 2018, in is Karimunjawa islands, Central Java, Indonesia. The findings

show that fishers' resilience experienced a downward trend on a yearly basis. Based on

simulation of the dynamic of resources on the Karimunjawa islands, the conditions forced

fishers to adapt to ongoing changes. Efforts can be made to improve the fishers' resilience by

increasing their productivity and fishing results, which can be achieved through by improving

the fishers' capacity through training programs to improve their fishing skills.

Keywords: Small Islands; Systems dynamic model; Productivity; Resilience; adaptation.

C2-4

113

Enhanced Fisher Job Satisfaction and Loyalty for Sustainable Fisheries

Development in Bengkulu, Indonesia

Irnad, Indra Cahyadinata* and Septri Widiono

Departement Of Agribusiness, Faculty Of Agriculture, University Of Bengkulu, Indonesia Jalan Wr.

Supratman, Kandang Limun – Kota Bengkulu, 38122, Indonesia

*Corresponding author: Research Center of Marine and Fisheries Socio Economic, Ministry of Marine

Affairs and Fisheries. Jalan Pasir Putih I Ancol Timur Pademangan, Jakarta Utara 14430, Indonesia.


Abstract

The increasing of fisher job satisfaction and loyalty is essential factor in fisheries development

in Bengkulu, Indonesia. High risk because of climate change badly need good fishing

management and properly government intervention. The purpose of this paper is to determine

the key factors of government policy of sustainable livelihood, on which government should

focus. An Interpretive Structural Model (ISM) has been employed to the model the

implementation factors of enhancing fisher job satisfaction and loyalty as an important

prerequesite in sustainable development. The factors have been categorized under “enables”

that could help to increase the implementation of job satisfaction and loyalty for sustainable

development. Fisher awareness of climate change is a prime finding factor, in terms of their

driving and dependent power in this study. For better implementation, government should

focus on driving power enablers namely, leardership, social capital, strategic planning, central

government support, capacity building, supporting technology and outonomy government

intervention.

Keywords: Fisher; Satisfaction; Loyalty; Sustainable fisheries; Interpretive structural model.

C2-5

114

The First Record of the Nest Placement of Horseshoe Crab (Tachypleus gigas) in

Indonesia

Naila Khuril Aini1, Yusli Wardiatno2,*, Ali Mashar2 and Hawis Madduppa3

1) Graduate program in Department of Aquatic Resources Management, Faculty of Fisheries and



University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Department of Marine Science and Technology, Faculty of Fisheries and Marine Sciences, IPB




16680, Indonesia.


Abstract

Previous studies have reported that extant horseshoe crabs, including Atlantic and Asian

horseshoe crab, spawned on intertidal zone during high tide season. Limited information

about spawning nest of horseshoe crab especially Tachypleus gigas in Indonesia has not been

known yet. Morover, according to the IUCN the conservation status of T. gigas is still data

deficient. During the field work we found the location that indicated as the spawning ground

or nest placement of T. gigas. This is the first time when the spawning area of horseshoe crab

found in Subang, Indonesia. There was three clutchs of eggs and the total number was 375-

534 eggs in varying depth (5-20 cm) bellow the sand. The second observation in the same

location on January 16, 2020, found a pair of T. gigas laying their eggs and the number was

244 eggs in varying depth (5-15 cm). The characteristics of nest placement of T. gigas that

found in Subang is located on an small island in the middle of the sea. The island is an

uninhabited island that has mangrove area and sanddy substrate. Thus, based on what was

found that island is indicated as the spawning ground of coastal horseshoe crab (T. gigas).

Keywords: Eggs; Horseshoe crab; Spawning site.

C2-6


115

Ecobiology of Horseshoe Crab in Brebes, Northern Coast of Java: Preliminary

Study

Danu Wijaya*, Masayu Rahmia Anwar Putri, Astri Suryandari, and Amula Nurfiarini

Research Institute for Fish Resources Enhancement, Agency for Marine and Fisheries Research and

Human Resources, Ministry of Marine Affairs and Fisheries Republic of Indonesia, Jl. Cilalawi No.1,

jatiluhur, Purwakarta 41152, Indonesia.

*Corresponding author: Research Institute for Fish Resources Enhancement, Agency for Marine and

Fisheries Research and Human Resources, Ministry of Marine Affairs and Fisheries Republic of Indonesia,

Jl. Cilalawi No.1, jatiluhur, Purwakarta 41152, Indonesia.


Abstract

Horseshoe crabs are known as living fossils and three species are found in Indonesia where all

of them are being protected. The research aimed to assess ecology, species composition and

biological aspects in Brebes estuary. The research was conducted on August and October 2017

in seven location. Samples were caught using local fishermen gears and experimental gears.

Parameters of water quality were observed in-situ and substrate were analysed in laboratories.

The horseshoe crabs that were caught were measured morphologically and their stomach and

eggs were taken to be analysed in laboratories. Total horseshoe crabs were caught were 33

individuals (Tachypleus gigas=8; Carsinoscorpius rotundicauda = 25). Prosoma width of T. gigas

were 16.3-22.6 cm and 216.1-717.0 gram of weight. Prosoma width of C. rotundicauda were

11.2 -14.5 cm and 96.0-275.5 gram of weight. Food habit of those horseshoe crabs species

were macrophyte, mollusc, annelid, coral and detritus. Niche breadth of C. rotundicauda’s were

wider than T. gigas. Niche overlap between T. gigas and C. rotundicauda were high that indicate

high competition between those species in utilizing food sources. The fecundity of C.

rotundicauda from this study was higher than T. gigas but egg diameter of C. rotundicauda

smaller than T. gigas.

Keywords: Horseshoe crab; Ecology; Food habit; Nice breadth; Nice overlap; Egg.

C2-7


116

Distribution of Matuta purnama J. C. Y. Lai & Galil, 2007 (Brachyura: Matutidae)

Outside Type Locality

Nisfa Hanim1, Yusli Wardiatno2,3, Dyah Perwitasari1, Ali Suman4 and Achmad

Farajallah1,*

1) Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Kampus IPB

Dramaga, Bogor, West Java, 16680, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University, Kampus IPB Dramaga, Bogor, West Java, 16680, Indonesia 3) Environmental Research Center, IPB University, Kampus IPB Dramaga, Bogor, West Java,16680,

Indonesia 4) Research Center of Fisheries Jakarta, Ministry of Marine and Fisheries Affair, Jalan Pasir Putih, Ancol

Timur, North Jakarta, 14430, Indonesia

*Corresponding author: Department of Biology, Faculty of Mathematics and Natural Sciences, IPB

University, Kampus IPB Dramaga, Bogor 16680, Indonesia


Abstract

Matuta (Moon Crab) belongs to superfamily Calappoidae which inhabit sandy beach area.

There are four species of Matuta which can be found in Indonesia, one of them is Matuta

purnama. The latest report, despite Indonesia has very long coastline, showed that the

distribution area of this species is only in Batu Karas beach, Pangandaran Regency. Here, we

reported new distribution area of M. purnama in Indonesia. We collected the organism samples

using purposive sampling method in 21 sampling sites and we preserved it in 96% alcohol

solution. We conducted identification process based on Lai and Galil, 2007. There was three

new distribution area of M. purnama, which is Bengkulu (west coast of South Sumatra), Tanjung

Pasir beach, Tangerang (north coast of Java), and Karanghawu beach, Pelabuhan Ratu (south

coast of Java). In other sampling sites, we did not found M. purnama yet, but we found other

Matuta species, M. victor and M. planipes. This situation might be influenced by many factors,

such as season and sea current, etc. This study expected to be useful for conservation and

management.

Keywords: Moon Crab; Dispersal; Indonesian Waters.

C2-8


117

Population Dynamic of Two Dorippid Crabs (Brachyura: Dorippidae) in East

Lampung Waters, Indonesia

Zairion1,2, Shoimatul Ula1, Alysa N Utomo1*, Agus Alim Hakim1 and Yusli Wardiatno1,2,3


University (Bogor Agricultural University), Bogor 16680, West Java, Indonesia 2) Center for Coastal and Marine Resources Studies (PKSPL), IPB University (Bogor Agricultural

University), IPB Baranangsiang Jl. Raya Pajajaran, Bogor 16143, West Java, Indonesia 3) Environmental Research Center (PPLH), IPB University (Bogor Agricultural University), IPB Darmaga,

Bogor 16680, West Java, Indonesia




Abstract

Dorippid crabs are crustacean with a habitat of sandy and muddy shallow waters. The crabs

have a high abundance but discarded species from blue swimming crab fishing as a bycatch.

Although not a species with economic value, dorippid crab is one of the ecosystem

components in the fishing ground of blue swimming crab, so the population dynamics of

dorippid crabs is important to study. This research purposed to analyze aspects of population

dynamics of two dorippid crabs in coastal waters of East Lampung, Indonesia. The study was

conducted from June to October 2017 with specimen collecting once a month in Labuhan

Maringgai and Kuala Penet, East Lampung. Two species of dorippid crabs were found in the

coastal waters of East Lampung. There are Dorippe quadridens and Dorippoides facchino with

both growth patterns of isometric. The growth coefficient of male Dorippe quadridens is

smaller than female, the opposite male greater than female for Dorippoides facchino.

Recruitments of two dorippid crabs happened almost every month with two peaks of the year

for Dorippe quadridens and one peak for Dorippoides facchino. The fishing mortality of two

dorippid crab is lower than the natural mortality.

Keywords: Dorippe quadridens; Dorippoides facchino; Growth; Mortality; Recruitment.

C2-9

118

Ectoparasites in blue swimming crabs (Portunus pelagicus) from Demak and

East Lampung, Indonesian coastal waters

Anna Heirina1*, Majariana Krisanti2, Nurlisa A Butet2, Yusli Wardiatno2,4, Svenja

Köpper6, Agus Alim Hakim2 and Sonja Kleinertz3,5*

1Graduate Student of the Department of Aquatic Resources Management, Faculty of Fisheries and

Marine Sciences, IPB University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor

16680, Indonesia 2Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

(Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3Faculty of Fisheries and Marine Sciences, IPB University (Bogor Agricultural University), Bogor,

Indonesia, Jl. Agatis Kampus IPB Dramaga, Bogor, Indonesia 4Environmental Research Center, IPB University, Kampus IPB Dramaga, Bogor 16680, Indonesia 5Aquaculture and Sea-Ranching, Faculty of Agriculture and Environmental Sciences, University of

Rostock, Justus-von-Liebig-Weg 2, 18059 Rostock, Germany 6 University of Prince Edward Island, Atlantic Veterinary College, Canada


E-mail address: [email protected], [email protected]

Abstract

In Indo-Pacific waters including Indonesia, P. pelagicus is of high economical value.

Ectoparasites that infest P. pelagicus can have negative impacts to its host health. This study

aims to identify and determine the infection pattern of ectoparasites that interact with P.

pelagicus and to measure the ectoparasitic infecction patterns of these crab species such as

prevalences, intensities, and abundances of these crab species. This research was conducted

from October 2019 to January 2020 at the Coast of East Lampung and Demak. Samples were

taken randomly from fishermen's catch. A total of 93 crab samples were measured and

examined in this present study. The crabs were stored into plastic bags at temperatures up to

4°C or stored in a microtube containing 96% alcohol as a preservative. Based on the

morphological identification, seven ectoparasites namely Chelonibia patula, Dianajonesia

tridens, Octolasmis angulata, O. lowei, O. warwickii, Ostrea puelchana and Thompsonia sp. were

isolated and identified. The ectoparasite in Demak waters isolated with the highest prevalence

value was O. angulata with 81% and an intensity value of 168. In the waters of East Lampung,

the highest prevalence value of ectoparasites was found for C. patula with 88%. Both parasite

species can have severe health related impacts to their crab host, such as increasing weight

load, impaired swimming ability, restricted movement, leading to an enhanced vulnerability to

predators for C. patula infestation. O. angulata is known to infect the gills and can inhibit the

respiration process and therefore hampers the oxygen uptake of these crustacean hosts. In

future this knowledge will support the sustainable use of this commercially important crab

species and to better understand health impacts of ectoparasites to P. pelagicus in Indonesian

waters.

Keywords: P. Pelagicus; Ektoparasite; Octolasmis spp.; Prevalence; Mean intensity.

C2-10

119

An Evaluation of Grouper (Serranidae) and Snapper (Lutjanidae) Fisheries

Management Policy in Saleh Bay, Indonesia

Diding Sudira Efendi1,2,*, Luky Adrianto1,3, Yonvitner1,3 and Yusli Wardiatno1,3,4


University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 2) Directorate General of Capture Fisheries, Ministry of Marine Affairs and Fisheries (MMAF), Jl. Medan

Merdeka Timur No. 16, Jakarta 10110, Indonesia 3) Center for Coastal and Marine Resources Studies (CCMRS), IPB University (Bogor Agricultural

University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127, Indonesia 4) Environmental Research Center, IPB University (Bogor Agricultural University), Jl. Lingkar Akademik,

Kampus IPB Dramaga, Bogor 16680, Indonesia.



16680, Indonesia.


Abstract

In the policy context, managing grouper and snapper fisheries resources for sustainability is a

big challenge because of the complexity of small-scale fisheries in Saleh Bay. This study

implemented three analytical methods: length-based analysis, ecosystem approach to fisheries

assessment and multidimensional analysis to evaluate the performance of the implementation

of the grouper and snapper fisheries management in Saleh Bay. The overall results showed

that the implementation of governor regulation was still not optimal. The results showed after

policy implementation, the mean length of species have been slightly larger. Two of the 11

species regulated had spawning potential ratio values below the limit reference point, which

indicated that these species are currently fished at unsustainable levels (demonstrating

overexploitation). Overall, the assessment of fishery risk index (FRI) indicated the risk status of

this fisheries in the category of moderate risk (yellow zone), 1.237, in which two dimensions

need to be improved: socio-economy and habitat. Therefore, this study highlighted leverage

points to achieve ‘good’ performance level, such as socialization program intensively,

enforcing regulation to provincial regulation, strengthening the surveillance capability and law

enforcement of destructive fishing practices, empowerment of local institutions of the fishing

community (by co-management), and rehabilitation of coral reef ecosystems.

Keywords: Ecosystem approach; Effectiveness of regulation; Performance; Tactical decision.

C2-11

120

Marine Tenure in Indonesia: Revisiting the Status and Implementation to Foster

Sustainability in Fisheries

Terry Indrabudi*, Annisa Meutia Ratri, Dedi S Adhuri and Maulida Illiani

Research Center for Society and Culture – LIPI, Floor 6 Widya Graha Building Jl. Gatot Subroto No. 10

Jakarta Selatan, 12710, Indonesia

*Corresponding author: Research Center for Society and Culture – LIPI, Floor 6 Widya Graha Building

Jl. Gatot Subroto No. 10 Jakarta Selatan, 12710, Indonesia


Abstract

Marine tenure right is a system that people, or social groups utilize the sea area as well as

regulate the level of exploitation in the area to protect from over exploitation. This research

aims to revisit the status and implementation of marine tenure in Indonesia, and its challenge

to foster sustainability in fisheries. This study is conducted by using a desk study approach

from the existing research carried out by Research Center for Society and Culture- LIPI and

other local and international sources. Further, the study also used jurisdiction analysis on

regulations and laws at both the central and local level in order to see whether marine tenure

is supported by formal legal rules. This paper provides the analysis that conflict and customs

shaped the marine tenure rights, for instance in Bindusi, East Biak. Marine tenure rights have

contributed to foster sustainable fisheries, conservation, and well-being of the fishing

community, especially for small-scale fisheries. It has a system to maintain sustainability of

marine resources by establishing a restriction for fishing gear and time to fishing arrangement.

This paper also found that the legality or status of marine tenure rights in Indonesia need more

political will from the government, especially the local government.

Keywords: Marine tenure; Sustainability; Fisheries.

C2-12


121

Preparing Indonesia for 'the UN Decade of Ocean Science for Sustainable

Development 2021-2030': Stakeholder Mapping and Analysis

Puji Hastuti1 and Ali Yansyah Abdurrahim1,2,*

1) Research Center for Population, Indonesian Institute of Sciences (LIPI), Jakarta, Indonesia. ORCID:

https://orcid.org/0000-0003-0213-0135 2) Study Program of Rural Sociology, Graduated Program, IPB University (Bogor Agricultural University),

Bogor, Indonesia

*Corresponding author: Research Center for Population, Indonesian Institute of Sciences (LIPI), Widya

Graha LIPI, Jl. Jend. Gatot Subroto No 10, Jakarta Selatan, Indonesia.


Abstract

In December 2017, the United Nations General Assembly declared the UN Decade of Ocean

Science for Sustainable Development 2021-2030 (hereafter, 'the Decade'). The Decade

Declaration is aimed at accelerating the resolution of various social-ecological issues facing

the oceans collectively and holistically by involving multi-stakeholders: natural and social

scientists, governments, NGOs, private parties, and local communities. Indonesia as a large

maritime country must play an important role in this Decade, both as a provider and as a

beneficiary. This paper aims to conduct stakeholder mapping and analysis related to the

implementation of 'the Decade' in Indonesia. This exploratory study is conducted qualitatively,

using a literature review, in three stages: i) identifying stakeholders; ii) differentiating between

and categorizing stakeholders; and iii) investigating relationships between stakeholders. The

results of the analysis are expected to be used to help various parties in Indonesia prepare to

take part in the implementation of 'the Decade'.

Keywords: Ocean science; Social-ecological system; Collaboration; Stakeholder mapping;

Stakeholder analysis.

C2-13

122

Compensation Claim and Its Dispute Resolution on the Coral Reef Ecosystem

Damage Due to Vessel Grounded in the Waters Area of Tengah Island,

Karimunjawa Subdistrict, Jepara Regency, Central Java Province

Yudi Wahyudin1, 2 and Mahipal3

1) Center for Coastal and Marine Resources Studies, IPB University, Bogor – Indonesia 2) Faculty of Agriculture, Djuanda University, Bogor-Indonesia 3) Faculty of Law, Djuanda University, Bogor-Indonesia

*Corresponding author: Center for Coastal and Marine Resources Studies, IPB University,

Bogor – Indonesia


Abstract

The purpose of this research is to conduct a study of claims for damages to coral reef

ecosystems due to the barges grounded in the waters of Central Island, Karimunjawa District,

Jepara Regency, Central Java Province. The study was carried out in the nearest coastal area

which was the affected area from 11-15 September 2017. The types of data and information

taken were primary and secondary. Primary data was obtained through in-depth interview

techniques with fishermen, visitors and related stakeholders with a questionnaire guide, while

secondary data was obtained through document searches and references from various related

agencies. Analysis of data and information was carried out using economic valuation

techniques for coral reef ecosystem services, analysis of the cost of restoration (restoration) of

coral ecosystems, analysis of direct fisheries impacts, analysis of costs of verification and

resolution of environmental disputes. The results of the study show that the total value of the

claim for damage to the coral reef ecosystem of this barge is 755.61 square meters with an

economic value of damage of IDR. 9,908,273,680.11. The total damage claims amounted to

IDR 4,218,524,480.11 for loss of coral reef ecosystem services; the cost of restoration of coral

reef ecosystems of IDR 4,439,749,200.00; and the cost of verification and settlement of

environmental disputes of IDR 350 million. The settlement of environmental disputes in this

case was resolved outside court after going through several stages starting from joint field

verification surveys, clarification hearings, and negotiation sessions to agreement on the value

of the compensation claim as a result of negotiations agreed to be paid by the company to

the state.

Keywords: Coral ecosystem services loss; Restoration cost; Verification and dispute resolution

cost; Total compensation claim.

C2-14

123

Social Capital in Improving the Settlement Environment Quality in the Coastal

City of Surabaya, Indonesia

Ardiyanto Maksmilianus Gai1,*, Agustina Nurul Hidayati1 and Jems Leo Wospakrik 1 and

Anis Artiyani2

1) Urban and Regional Planning Department, National Institute of Technology (ITN) Malang, Jl.Sigura-

gura No.2, Malang, East Java, Indonesia 2) Environmental Enngineering Department, National Institute of Technology (ITN) Malang, Jl.Sigura-

gura No.2, Malang, East Java, Indonesia

*Corresponding author: Urban and Regional Planning Department, National Institute of Technology

(ITN) Malang, Jl.Sigura-gura No.2, Malang, East Java, Indonesia


Abstract

Growth and development in the coastal areas of the city do not only open up opportunities

economically but also result in breakdown in social and environmental condition. This

condition causes some communities in coastal areas to experience material and social

deprivation resulting in individuals living below a decent standard. The development also

affects changes in coastal area landscape on hydrology, seawater intrusion, city drainage,

mangrove stripe, and biota in the coastal area are progressing fast, including coastal

reclamation efforts which affect the quality of surrounding settlements. Social capital is a

contributor to the power of society which can accumulate when people interact with each

other in the family, workplace, environment, local associations, interest groups, and

government. Besides, social capital is one important element in people's lives which potentially

supports people's strength in taking action in their environment. This study aims to formulate

the social capital concept in improving the quality of the residential environment in the coastal

city of Surabaya using weighting analysis techniques, quantitative descriptive, and multiple

linear regression analysis. The results show that the community’s social capital condition and

social network condition play important roles in improving the settlement environmental

quality.

Keywords: Coastal areas; Community social capital; Settlement environment quality.

C2-15


124

Coastal Resources Degradation in Tangerang, Banten Province: State and

Management Action

Dadan Mulyana1, Ageng Dwi Prismayanti*1, M Arsyad Al Amin1,3, Fery

Kurniawan1,2, Ario Damar1,2, M Asyief Khasan Budiman1, Bambang Gunawan1 and

SM Hari Mahardika3

1) Center for Coastal and Marine Resources Studies (CCMRS), IPB University (Bogor Agricultural

University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127, West Java, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia 3) Coastal and Marine Management Program, Graduate School, IPB University (Bogor Agricultural

University), Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia


(Bogor Agricultural University), Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 1, Bogor 16127, West

Java, Indonesia


Abstract

Coastal degradation can be determined as mangrove destruction and water quality

degradation. Abrasion and accretion are the impacts of mangrove destruction in coastal areas.

Ecosystem condition and coastal environment destruction were analyzed in Tangerang coastal

areas. Soil, vegetation, and water quality were analyzed. Soil quality was analyzed descriptively.

Vegetation and water quality were analyzed with Important Value Index and STORET Index,

respectively. The results indicated that the coastal of Tangerang is damaged both in terms of

mangrove and water quality. Causal analysis showed that the damage of coastal environment

in Tangerang is largely influenced by the high amount of plastic, domestic, and industrial

waste. Management recommendations that can be carried out on the coast of Tangerang are

silvofishery management and mangrove planting right behind the wave breaker.

Keywords: Coastal ecosystem; Degradation; Mangrove.

P1-1

125

Secondary Production of Sesarma sp. in the Coastal Ecosystem of Ponelo Island,

North Gorontalo

Majariana Krisanti, Tutut Sugiarti, Ali Mashar* and Agus Alim Hakim






Abstract

Sesarma sp. is categorized as a small crustacean from Family Sesarmidae with a size range of

12-23.7 mm. The study aimed to estimate the secondary productivity produced by Sesarma

sp. in the coastal ecosystem of the Ponelo Island, North Gorontalo. The research was

conducted from August to October 2019. Specimens were collected in 4 locations, i.e.

anthropogenic area, coral reef ecosystems, seagrasses, and mangroves. All specimens were

observed in the Laboratory of Micro Biology 1, Department of Aquatic Resource Management,

IPB University. Data were analyzed include length-frequency distribution, length-weight

relationship, and estimation of secondary productivity. The length-frequency distribution of

Sesarma sp. has ranged from 2.1 to 8.7 mm with a growth pattern of isometric both male and

female. The coral reef ecosystem has the highest secondary production because this

ecosystem has a habitat to support the Sesarmidae family. The seagrass ecosystem has the

lowest secondary productivity due to natural factors with an effect on the ecosystem.

Keywords: Secondary productivity; Sesarma; Small crustacea.

P1-2

126

Diversity of Phytoplankton in Batang Toru River and its arround, North

Sumatera

Aris Asriansyah, Dudi M. Wildan*, Niken TM Pratiwi and Sulistiono

Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences,

Bogor Agricultural University. Bogor. 16680. Indonesia



16680, Indonesia.


Abstract

Batang Toru River (South Tapanulis, North Sumatra) is one of the waters that is quite widely

used for various purposes, family need, including fisheries and tourism. This study was

conducted for 3 months (April, July, and October 2019) in the waters of the Batang Toru River,

at 13-15 observation stations distributed from the area near the upstream of the river to near

the estuary. Analysis of the data used in this study was the Analysis of Abundance and

Composition of phytoplankton Types, Diversity Index (H '), Evenness Index (E), and Dominance

Index (C). Based on the study results, phytoplankton in these waters consisted of five classes

of phytoplankton, namely Bacillariophyceae (26 genera), Chlorophyceae (15 genera),

Cyanophyceae (7 genera), Dinophyceae (1 genus), and Eiglenophyceae (2 genera). Diversity,

Evenness and Dominance Indices are around 0.113-2.096, 0.503-1.00 and 0.132-0.802,

respectively. Phytoplankton diversity in the Batang Toru River is classified as moderate

ecological pressure.

Keywords: Community structure; Phytoplankton; Batang Toru; South Tapanuli.

P1-3

127

Study on Aquatic Ecobiology of Batang Toru River and its Arround, North

Sumatera:

Macrozoobenthic Diversity

Dudi M Wildan1,*, Sulistiono1, Charles PH Simanjuntak1, MF Rahardjo1, Totok

Hestiranoto2, Dadang Shafrudin3, Thomas Nugroho4 and Agus Joko Ismanto5

1) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, Bogor

Agricultural University. Bogor. 16680. Indonesia 2) Department Marine Science and Technology, Faculty of Fisheries and Marine Sciences, Bogor

Agricultural University. Bogor. 16680. Indonesia. 3) Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University.

Bogor. 16680. Indonesia 4) Department of Fisheries Resources Utilization, Faculty Fisheries and Marine Sciences, Bogor

Agricultural University. Bogor. 16680 5) Department of Environment, PT North Sumatera Hydro Energy, Jl. Darmawangsa VII No 2, Jakarta,

12160, Indonesia



16680, Indonesia.


Abstract

Batang Toru River is one of the sizable rivers in North Sumatra, encompassing to south and

west dan empty to the Indian Ocean. The macrozoobenthos community structure study activity

was carried out for 3 months in April, July and October 2019 at 13-17 station spread from the

river area near the upstream to the area near the estuary. Data analysis was performed on

density, diversity index, evenness, and dominance indices. Based on the results of the study,

21 genus of macrozoobenthos was identified consisting of 9 classes, namely Class Bivalvia (2

genera), Diptera (3 genera), Gastropoda (4 genera), Ephemeroptera (1 genus), Odonata (1

genus), Oligochaeta (6 genus), Plecoptera (1 genus), Tricoptera (2 genera), and zygoptera (1

genus). Thiara sp. and Balanocochlis sp. were quite commonly found in the study stations.

Based on the calculation, it was found that the density of the macrozoobenthos varied between

11-957 ind/m2. The value of the diversity index at each station varied from 0.722 to 2.419, the

evenness index was 0.411- 1.000 and the dominance index was 0.210 to 1.000. Based on these

values, the condition of the Batang Toru River ecosystem expressed a moderate ecological

pressure.

Keywords: Community; Batang Toru River; Macrozoobenthos.

P1-4

128

Polyculture Seaweed Gracilaria sp. and Milkfish in the Pond

Erfan Andi Hendrajat

Research Institute for Coastal Aquaculture and Fisheries Extension. Jl. Makmur Dg. Sitakka No. 129

Maros, Indonesia

*Corresponding author: Research Institute for Coastal Aquaculture and Fisheries Extension

Jl. Makmur Dg. Sitakka No. 129 Maros, Indonesia


Abstract

Polyculture is a mixed cultivation technology between two or more commodities that can

increase aquaculture production and provide value added cultivators as it can harvest several

products in one season. Polyculture seaweed Gracilaria sp and milkfish are done at Marana

Experimental Pond Installation, Research Institute for Coastal Aquaculture, Maros South

Sulawesi with extensive technology system, using 1 plot of pond size 10.000 m2. Preparation

of the pond begins with the repair of dikes, patching leaks and repair of sluices. Next is draining

ponds, eradicating pest with 20 ppm saponin, pond flushing, subsequent fertilizing and

preparation of water for dispersal. Initial fertilization is done by using Urea and TSP fertilizers

with doses of 100 and 50 kg/ha. Seaweed seed stocking in ponds as much as 2,000 kg/ha was

done in March using broadcast method, ie seed stocked in all parts of ponds. The milkfish

seeds are also stocked with a dense stocking of 1,000 tails/ha. The first harvest of seaweed can

be done after the maintenance period of 3.5 months. The next harvest can be done every 30-

45 days. Total production of dried seaweed reached 8,284 kg/ha (5 times harvest/year) and

milkfish harvest reached 375 kg/ha.

Keywords: Polyculture; Gracilaria sp; Milkfish; Pond; Production.

P1-5

129

Spatial Variation of the Phytoplankton and some Physico Chemical Variables in

Lake Tempe, South Sulawesi

Fachmijany Sulawesty* and Yustiawati

Research Center for Limnology, Indonesian Institute of Sciences, Komp. LIPI Cibinong, Bogor 16911,

Indonesia

*Corresponding author: Research Center for Limnology, Indonesian Institute of Sciences, Komp. LIPI

Cibinong, Bogor 16911, Indonesia


Abstract

Lake Tempe is one of the floodplain lakes in Indonesia that has a unique phytoplankton

characteristic. This study aims to describe the abundance of phytoplankton and their

relationship to Physico-chemical parameters in Lake Tempe. Observations were conducted in

March 2017 in five zones of the lake (four zones are non-permanent areas and one zone is

permanent area). The observed parameters were phytoplankton abundance and water quality.

The phytoplankton community structure was analysed by the Diversity Index, Evenness Index,

and Dominance Index. A total of five phyla and 76 species of phytoplankton were found in

Lake Tempe, comprised of Chlorophyta (40 species), Bacillariophyta (21 species), Cyanophyta

(8 species), Euglenophyta (5 species), dan Dinophyta (2 species). The phytoplankton

abundance and the taxa richness in non-permanent areas is relatively high compared to

permanent areas. Moderate to the high community (1.553 – 4.333) and low uniformity (0.096

– 0.363) among species in the phytoplankton community was found in Lake Tempe. The

dominant species was not found, as seen from the low dominant index value (0.068 – 0.518).

Turbidity and TSS values are relatively high in permanent areas compared to non-permanent

areas, this is thought to cause lower abundance in permanent areas than non-permanent

areas.

Keywords: Abundance; Taxa richness; Water quality; Phytoplankton; Indonesia.

P1-6

130

Analysis of Water Pollution in Kaliotik River, Lamongan-West Java

Fuquh Rahmat Shaleh*, Endah Sih Prihatini and Faisol Masud

Department of Aquatic Resources Management, Faculty of Fisheries, UNISLA University (Lamongan

Islamic University), Jl. Veteran No. 53A, Kampus UNISLA, Lamongan 62211, Indonesia

*Corresponding author: Department of Aquatic Resources Management, Faculty of Fisheries, UNISLA

University (Lamongan Islamic University), Jl. Veteran No. 53A, Kampus UNISLA, Lamongan 62211,

Indonesia


Abstract

Kaliotik River is the one of important rivers in Lamongan District. It is the middle of the center

of the city and crosses the settlements of residents, markets and restaurants by the river. The

river is a source of water in agricultural activities, fish cultivation and vanamei shrimp around

the watershed. This study uses a quantative descriptive method with purposive sampling

sampling. Sampling was conducted as many as 7 stations, conducted in March-September

2020. Data taken in this study include physics parameters (temperature, total suspended solid

/TSS) and chemical parameters (BOD, DO, pH, phosphate, ammoniak, oil and fat).

Determination of Kaliotik River water pollution status using STORET method (KEPMEN

No.115/MENLH/2003), by comparing water quality data with standard water quality criteria

according to its provisions / based on its Class (PP No. 82 of 2001 on Water Quality

Management and Water Pollution Control). Based on the results of the study shows that the

water quality of Kaliotik River is below the standard limit of water quality. Kaliotik river based

on STORET method belongs to the category of heavily polluted.

Keywords: Kaliotik River; Lamongan; Pollution; STORET method.

P1-7

131

Spatial Assessment of Seagrass Ecosystem Using the Unmanned Aerial Vehicle

(UAV) in Teluk Awur, Coastal Water of Jepara

Ita Riniatsih*, Sri Redjeki, Retno Hartati, Ria Azizzah TN and Robertus Triaji MJ

Departement of Marine Science, Faculty of Fisheries and Marine Science, Diponegoro University

Jl. Prof. Soedharto, SH, Kampus UNDIP, Tembalang, Semarang, Indonesia

*Corresponding author: Gedung B Ruang 201 Departement of Marine Science, Faculty of Fisheries ang

Marine Science, Diponegoro University (UNDIP), Jl. Prof. Soedharto, SH., Tembalang, Semarang,

Indonesia


Abstract

Seagrass ecosystem are highly sensitive to environmental changes. They are also in global

decline and under threat from global climate change and a variety of anthropogenic factors.

There is now, a spatial assessment method for the monitoring of the seagrass beds is needed,

so that changes in seagrass condition can be understood. Typical monitoring approaches have

included remote sensing from satellites and unmanned aerial vehicle platform, and ground

base ecological survey. The techniques can suffer from temporal and spatial inconsistency, or

are very localised making it hard to assess seagrass meadows in a structurer maners. The aim

of research was present the technique using a lightweight drone and consumer grade cameras

to produce very high spatial resolution mosaics of intertidal site in Teluk Awur, Jepara water,

Indonesia. The data collection methodologies followed by digitation methode techniques to

produce coverage estimates, with ground check at location, with data drone analysis. This

result show that digitation method, can show between the observed and classified low

coverage seagrass 4.56-18.03% (<25%), to middle coverage seagrass 26.34-38.74% (between

25< and <50%), also can detect other biotic features, like massive coral, macroalgae also the

flat sand and coral rubble.

Keywords: Spatial assessment; Seagrass; Jepara.

P1-8

132

Ecotourism Management in Wana Wisata Curug Nangka Bogor Regency Based

on Visitors and Natural Resources

Muhammad Ihsan Rifqi* and Fredinan Yulianda

Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB

University. Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia

*Corresponding author: Departement of Aquatic Resources Management, Faculty of Fisheries and

Marine Sciences, IPB University. Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia


Abstract

Wana Wisata Curug Nangka is an ecotourism areas therein is aquatic ecosystem that has an

important role in supporting the economy and maintaining the preservation of environmental

functions. This study aims to identify the potential of ecotourism and analyze the carrying

capacity of ecotourism in Curug Nangka for sustainable development. Data collection was

carried out in February until August 2019 in Curug Nangka waterfall. Data analysis included

tourism suitability index, ecotourism carrying capacity analysis, and SWOT analysis. The

carrying capacity of the Curug Nangka tourism area is 282 people per day, which consists of

water playing, relaxing sitting and enjoying the view. There are two management strategies

that are prioritized, namely the W-O strategy to increase proper target promotion and develop

necessary facilities, the S-O strategy to establish waste management program, regulation and

strengthening the functions of the management.

Keywords: Ecotourism; Resources; Wana Wisata Curug Nangka; Waterfalls.

P1-9

133

Artificial Intelligent for Investment Assessment in Coastal and Small

Island Area, Based on Disaster Risk

Yonvitner1,4, Samsul Bahri Agus2,4, Perdinan3,4, Rifki Aldi Rahmadani4

and Bhirawa Ananditya Wicaksana4

1) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science- IPB

University 2) Department of Marine Science and Technology, Faculty of Fisheries and Marine Science- IPB

University 3) Department of Geophysics and Meteorology, Faculty of Fisheries and Marine Science- IPB University. 4) Centre for Disaster Studies (CERDAS) LPPM IPB

*Corresponding author: Departement of Aquatic Resources Management, Faculty of Fisheries and

Marine Sciences, IPB University. Jl. Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia


Abstract

Coastal areas and small islands in Indonesia have reliable investment feasibility potential. The

location of small islands that must be developed must assess the ecosystem's carrying

capacity, the environment, including disaster risk. Research on investment feasibility based on

disaster risk is necessary to support small islands' investment plans and development. This

area is known as a vulnerable and potentially high risk from natural or human-made disasters.

The research conducted in the Kepulauan Seribu will adopt digital technology to assess the

eligibility criteria as the start of an investment step. The intervention of digital technology on

investment feasibility assessment in line with the digital era in the Industrial Revolution 4.0.

The outputs of the research are (1) investment feasibility indicators in coastal areas and small

islands based on disaster risk; (2) Strengthening systems and institutions related to investment

feasibility assessment in coastal areas and small islands; (3) The prototype of smart system

technology for assessing investment feasibility in coastal areas and small islands based on

disaster risk as part of the adaptation of revolution 4.0 to support the policy of integrated

electronic business licensing services.

Keywords: Artificial intelligent; Coastal and Small island; Investment; Risk and disaster;

Kepualuan Seribu.

P1-10

134

Estuarine Fish Structure Community in Banten Bay, Indonesia

Sugiarti1,*, Syahroma Husni Nasution1, Sigid Hariyadi2 and Sulistiono2

1) Research Center for Limnology Indonesian Institute of Sciences (RC for Limnology LIPI), Cibinong

Science Center, Jl. Raya Jakarta-Bogor Km 46, Cibinong, Bogor 16911, West Java, Indonesia 2) Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB


*Corresponding author: Research Center for Limnology Indonesian Institute of Sciences (RC for

limnology LIPI), Cibinong Science Center, Jl. Raya Jakarta-Bogor Km 46, Cibinong, Bogor 16911, West

Java, Indonesia.


Abstract

Fish community structure in aquatic environment include estuarine often affected by water

quality and condition surrounding the aquatic area. Banten Bay closed with several activities

could affect water quality and its biota. This research is aims to revealed fish community

structure in four estuarine in Banten Bay. Fish, water and plankton were sampled in May, July

and October 2013 in the estuarines i.e Wadas, Cibanten, Cengkok and Pamong in the Banten

Bay. Fishes were collected using fishing gears which commonly used by fisherman in each

sampling station and identified. The four types of fishing gears were beach seine (Wadas), lift

net (Cibanten), beach seine (Cengkok) and mullets gill-net (Pamong). Several water quality are

measured and analyzed using Pollution Index methods. Trophic status was analyzed using TRIX

methods. Plankton were sampled in surface water then identified and quantified. Fishes

collected were twelve species in Wadas, fourteen species in Cibanten, nine species in Cengkok

and one species in Pamong during the study. Diversity Index is medium in Wadas, Cibanten

and Cengkok estuarine while it was low in Pamong estuarine. Water quality that slightly

polluted with the richness of nutrient and plankton supported the abundance of fishes in four

estuarines of Banten Bay.

Keywords: Fish community; Aquatic ecology; Banten Bay.

P1-11

135

A Note on the Investigation of Morphometric Differentiation among Mantis

Shrimp (Stomatopoda) In South Madura Waters, Indonesia

Zairion1,2, Vinna Pardhini1, Agus Alim Hakim1 and Yusli Wardiatno1,2,3






Marine Sciences, IPB University (Bogor Agricultural University), Jl. Agatis, Kampus IPB Dramaga, Bogor

16680, Indonesia.


Abstract

Mantis shrimp is one of fishery resource with a high species variation and widely distribution

area that cause differences in morphometric characteristics and population mixing. This study

purposed to identify and compare the morphometric characters of mantis shrimp

(Stomatopoda) in South Madura waters, Indonesia. The study was conducted from October

2019 until January 2020 with specimen collecting from three locations in south of Madura.

Harpiosquilla harpax, Miyakella sp. and Oratosquillina sp. was dominant species that was

chosen for investigation of morphometric differentiation. Morphometric characters were

observed with standard method and truss network analysis (TNA). Kruskal Wallis analysis

resulted difference of 14 from 15 characters with standard method, and 47 from 56 characters

with truss network analysis. Cluster analysis showed that Miyakella sp. and Oratosquillina sp.

have a close relationship compared to Harpiosquilla harpax. In addition, mantis shrimp

populations in south of Madura formed three population groups.

Keywords: Harpiosquilla; Miyakella; Oratosquillina; Populations; Standard.

P1-12

136

A Morphometric Approach into Mackerel (Rastrelliger spp.) Diversity in

Fisheries Management Area 711 as a Management Base

Yusli Wardiatno1,2,3, Abdul Aziz1, Zairion1,2 and Agus Alim Hakim1,*








Abstract

Rastrelliger spp. is a small pelagic fish with important ecological and economic value in

Indonesia. Genus Rastrelliger have three species with different distribution pattern, so they

have diversity on morphology and populations in several waters. The study aimed to analyze

the morphometric diversity of mackerel (Rastrelliger spp.) in Bintan, Bangka, and Ketapang

waters (Fisheries Management Area 711) using standard morphometric methods and truss

network analysis. 310 samples were collected from all locations based on simple random

sampling. The growth pattern of Rastrellliger spp. was negative allometric in each location. The

cluster analysis showed that the mackerel populations from Ketapang and Bangka formed one

group, while Bintan tended to be different. Based on the discriminant analysis, there are

overlapping populations between Ketapang and Bangka. The difference of morphometric

characters on mackerel (Rastrelliger spp.) can indicate different species, so there is potential

for more than one population or stock in FMA 711.

Keywords: Allometric; FMA 711; Population; Stock.

P2-1

137

Biodiversity of Macroinvertebrates in Artificial Substrate from Several Habitats

at Ponelo Island, Gorontalo

Ali Mashar*, Alifia Putri Nur Firdaussyia, Majariana Krisanti and Agus Alim Hakim






Abstract

Ponelo Island is located at the North Gorontalo District (Gorontalo Province) with a position

close to the Wallace line. The impact of the position makes Ponelo Island having high

biodiversities, such as macroinvertebrates biodiversity. This study aimed to compare the

biodiversity of macroinvertebrates living in artificial substrates form anthropogenic, seagrass,

mangrove, and coral reefs habitat at Ponelo Island, Gorontalo. This study was conducted from

August to October 2019 in four different habitats at Ponelo Island. The specimens were

identified at the Laboratory of Micro Biology, Department of Aquatic Resources Management,

IPB University. The data were analyzed by calculating the diversity index, dominance index,

uniformity index, similarity analysis between habitats, and ANOVA test. The

macroinvertebrates samples from all stations were found 58 species, consisting of phylum

Annelids, Crustaceans, and Molluscs. The diversity value of macroinvertebrates in seagrass and

coral reef habitats is higher and vice versa the association level is lower than in other habitats.

Acetes sp., Clypeomorus bifasciata, and Sesarma sp. were obtained in all locations. The

placement of the artificial substrate had no significant effect on the density of

macroinvertebrates in all habitats.

Keywords: Anthropogenic; Coral reefs; Index; Mangrove; Seagrass.

P2-2

138

Preliminary study on the sound character of coconut crab (Birgus latro)

Irdiana Sintia1, Totok Hestirianoto1 and Sulistiono2*






16680, Indonesia.


Abstract

Some coconut crab (Birgus latro) specimens had been reared in the Laboratory of Ecobiology

and Conservation of Aquatic Resources, Department of Aquatic Resource Management,

Faculty of Fisheries and Marine Sciences of Bogor Agricultural University for preliminary study

on their sound characters. For several days, its sound had been recorded and the sound

character was analyzed. It was known that in captivity, the crab produced sound only in the

middle of the night. The Crab began to produce sound with stridulatory sound, and then

mixed with click sound. At the last hour before dawn, they produced only stridulatory sound.

In general, the crab produced sound only after sunset until dawn. Beginning at 18.00 (local

time) in the evening to 06.00 in the morning. Two kinds of sound were produced, namely

Stridulatory and Click. The sound band frequency was in between 300 to 500Hz; and in

between 900 to 1200Hz. The sound length was around 10 msec and sound intensity was 4 dB.

During the day the crab didn’t produce any kind of sound.

Keywords: Coconut crab; Bio-acoustic; Captive rearing.

P2-3

139

Reproductive Biology of Hampala Barb (Hampala macrolepidota Kuhl & Van

Hasselt 1823) in Ranau Lake, Indonesia

S Makmur1,2,*, D Muthmainnah 1,2, Subagdja1, D Arfiati3, G Bintoro3 and A W Ekawati3

1) Research Institute for Inland Fisheries and Extension, Ministry of Marine Affairs and Fisheries 2) Inland Fishery Resources Development and Management Department – Southeast Asian Fisheries

Development Center 3) Fishery and Marine Science Faculty, Brawijaya University



Abstract

One of the economically valuable consumption fish in Lake Ranau is the hampala barb

(Hampala macrolepidota). Hampala barb is the top predator in Ranau Lake. The fish population

is still quite a lot, but it is starting to decline. This study aimed to determine the reproductive

biology of hampala barb in Ranau Lake. Ranau Lake is located in South Sumatra Province and

Lampung Province, Indonesia. The research was conducted by the inventory survey method

and laboratory analysis. Fish samples were obtained from fisher's catch, where the fish were

caught using gill nets with varying mesh sizes and harpoon. The fish were measured for length

body, and total weight. Then surgery was performed to determine their reproductive biological

characteristics (sex, size of first gonad maturity, gonad maturity stage, Gonad Somatic Index,

fecundity, and egg diameter). The results showed that the hampala barb in Ranau Lake laid

the eggs throughout the year with a sex ratio of 1: 1, the size of the first stage of gonad

maturity of male and female were 15.38 cm and 19.21 cm, fecundity between 17,406 – 63,793

eggs, and egg diameter between 0.8 -1.9 mm. This reproductive biology information can be

used for the management of hampala barb in Ranau Lake.

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140

The Development of Adapted Marmorated Medaka Oryzias marmoratus

(Aurich, 1935) at Ex situ Habitat

Djamhuriyah Syaikh Said* and Novi Mayasari

Research Center for Limnology Indonesian Institute of Sciences

*Corresponding author: Research Center for Limnology Indonesian Institute of Sciences

Komplek CSC-BG, LIPI. Jl Raya Bogor KM 46 Cibinong, Bogor, Indonesia 16911


Abstract

Marmorated Medaka (Oryzias marmoratus) is a small endemic fish species of Malili Lakes,

South Sulawesi, Indonesia. The fish is a valuable commodity as an ornamental fish. However,

their population in the wild is threatened to extinction and has been categorized as vulnerable

by IUCN. An effort to conserve O. marmoratus by ex situ breeding is necessary for its

sustainability. Research Center for Limnology-LIPI has succeeded to take the fish from Lake

Towuti and adapted them in an ex-situ habitat (laboratory) in 2017–2018. A research on the

development to adapt O. marmoratus outside their natural habitat has been conducted in

2019–2020. The sex ratio of male: female was 1:2 (1:2.223 ± 0.638). During mass spawning, the

fish was able to reproduce seven times in 37 days. Egg diameter (mm) was 1.193±0.017;

fertilization and hatching rates were 100% and 98.149±3.347%, respectively. Length of

incubation Period (LIP) (days) was 7.286±1.329, and the larva size (mm) was 3.3±0.483. Survival

Rate on seven days (SR7) was 97.02112±5.510 % with larva size of 5.5±0.707. Juvenile size

(mm) at 16 weeks was 33.6 ± 5.661 (26–42). Oryzias marmoratus can be developed in ex situ

habitats and still needs further research.

Keywords: Adapted fish; Oryzias marmoratus; Ex situ habitat; Development.

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141

Productivity and Susceptibility Analysis of Indo-Pacific King Mackerel in IFMA

711 Waters

Tegoeh Noegroho1,*, Luky Adrianto2, Sulistiono2 dan Mennofatria Boer2

1) Research Institute for Marine Fisheries, Ministry of Marine Affairs and Fisheries, Cibinong, Bogor

Indonesia 2) Department of Aquatic Resources and Fisheries Management, Faculty of Fisheries and Marine

Science, Bogor Agricultural University, Bogor-Indonesia

*Corresponding author: Research Center for Limnology Indonesian Institute of Sciences

Komplek CSC-BG, LIPI. Jl Raya Bogor KM 46 Cibinong, Bogor, Indonesia 16911


Abstract

Indo-Pacific king mackerel has been long fished by traditional and modern fishers. The fish is

a catch target species with high economic value in local and export markets. The fishing efforts

for the fish have been increasingly intensive. However, the management for which is still

lacking. The concern is, continuous exploitation will make indo-pacific mackerel stock

susceptible. Therefore, the fish condition should be measured based on productivity and

susceptibility parameters using productivity susceptibility analysis (PSA). The study aimed to

analyze the sustainability of Indo-Pacific king mackerel and other species caught by gillnet and

purse seine in FMA 711 based on productivity and susceptibility scenarios. The study analyzed

Indo-Pacific king mackerel and other species, i.e. whitefin wolf-herring, narrow-barred Spanish

mackerel, longtail tuna, eastern little tuna, dan bigeye scad. The results of the analysis suggest

that Indo-Pacific king mackerel and whitefin wolf-herring were of moderate productivity and

susceptibility, narrow-barred Spanish mackerel and longtail tuna were of high productivity and

low susceptibility, and eastern little tuna and bigeye scad were of low productivity and high

susceptibility, putting both at high risk from fishing activities. In addition, the data quality of

Indo-Pacific king mackerel was moderate, while the data quality of whitefin wolf-herring was

the worst. Therefore, it is necessary to improve the quality and quantity of the data and

scientific information on whitefin wolf-hearing in the further studies.

Keywords: Stock status; Indo-Pacific king mackerel; Productivity; Susceptibility; FMA 711.

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142

Fat, Water and Ash Content in Chlorophyceae, Rhodophyceae and

Phaeophyceae Macroalgae at Sepanjang Beach, Yogyakarta, Indonesia

Heny Budi Setyorini1,* and Amallia Puspitasari2

1) Program Study of Marine Engineering, Faculty of Natural Resources Technology, Institute

Technology of Yogyakarta, Jl. Kebun Raya, No. 39, Rejowinangun, Kotagede Sub-District, Yogyakarta

55171, Indonesia 2) Program Study of Industrial Engineering, Faculty of Industrial Technology, Institute Technology of

Yogyakarta, Jl. Nyi Pembayun No. 23, Prenggan, Kotagede Sub-District, Yogyakarta 55172, Indonesia

*Corresponding author: Program Study of Marine Engineering, Faculty of Natural Resources

Technology, Institute Technology of Yogyakarta, Jl. Kebun Raya, No. 39, Rejowinangun, Kotagede Sub-

District, Yogyakarta 55171, Indonesia


Abstract

Community in Sepanjang Beach have utilized the macroalgae as main ingredients in various

special processed products. The objective of this study was to analyze the content of fat, water,

and ash in Chlorophyceae, Rhodophyceae and Phaeophyceae macroalgae at Sepanjang Beach,

Yogyakarta, Indonesia to support optimization of macroalgae processed products. This

research was conducted at Sepanjang Beach, Kemadang Village, Tanjungsari District,

Gunungkidul Regency, Yogyakarta in August 2020. A method of descriptive exploratory was

used in this research. Analysis of fat content, water and ash content was carried out on Ulva

lactuta, Palmaria palmata, Sargassum crassifolium, Gelidium spinosum, Gelidiella acerosa, and

Gracilaria verrucosa quantitatively using Sochlet method for content of fat, thermogravimetric

method for content of water and gravimetric method for content of ash. The results showed

that the highest fat and ash content was found in Ulva lactuta at 0.17% and 8.72% respectively,

while the highest water content was found in Sargassum crassifolium at 89.46%.

Keywords: Macroalgae; Fat; Water; Ash; Sepanjang Beach; Yogyakarta.

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143

The Description of villi from Grouper Cantang (Ephinephelus fuscogutattus

lanceolotus) Fed with Exogenous Enzyme Papain

Rita Rostika1,*, Fittrie Meyllianawaty2 and Rega Permana1

1) Fisheries Pangandaran Class Study Program, Faculty of Fisheries and Marine Science, Universitas

Padjadjaran 2) Fisheries Study Program, Faculty of Fisheries and Marine Science, Universitas Padjadjaran

*Corresponding author: Fisheries Pangandaran Class Study Program, Faculty of Fisheries and Marine

Science, Universitas Padjadjaran


Abstract

This research was carried out to observe the appearance of the grouper cantang (Ephinephelus

fuscogutattus lanceolotus) intestine which was fed with exogenous enzyme papain-added feed,

and maintained in a marine cage on the coast of Pangandaran, West Java Province from

January to March 2019. Completely Randomized Design Method in this study was performed

with five treatments and three replications with enzyme doses of 0%, 1.25%, 2.5%, 3.75%, and

5% for 60 days. The fish used were two months old with average weight 20 ± 10 g. Fifteen

cages measuring 1m x 1m x 1.2m3 were used to keep fish that were randomly placed for each

sampling. All fish were fed pellets with a protein content of 40% with a feeding level of 5%

sampling was carried out every 10 days for 60 days. The Average Daily Gain (ADG) calculation

was done by calculating the initial and final weights, while the preparation for intestine

conditions was carried out by taking the digestive tract from the anterior to the posterior, just

after the fish had been killed. The parameters observed were ADG and intestine conditions

(number of villi, villi length, necrosis, and goblet cells) in the anterior, midterior, and posterior

parts. The results showed that the ADG was significantly different in all treatments, the best

was the addition of enzymes 25% while the intestine conditions were the number of villi 33,

villi length 270.35 micron meter, necrosis cells 192 and goblet 53. In the anterior part the

number of villi 35, villi length 291.37 micron meter, necrosis cells 210 and goblet 66. On the

midterior the number of villi 30, villi length 259.53 micron meter, cells Necrosis 176 and Goblet

45. On the posterior the number of villi 34, villi length 260.14 micron meter, cells Necrosis 189

and Goblet 48. Overall it can be concluded that the administration of the enzyme papain 2.5

% shows a significant effect on the growth and intestinal conditions of the grouper cantang.

Keywords: Cantang grouper; Papain enzyme; Growth; Villi length; Number of villi.

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144

The Growth Potential of Single Celled Marine Chlorophycean Microalgae in

Modified Saline Karst Water Culture Media

Desy Mulyawati*, Niken Tunjung Murti Pratiwi, Bambang Widigdo and Grin Tommy

Panggabean

Department of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, Bogor

Agricultural University, Indonesia, 16680

*Corresponding author: Fisheries Pangandaran Class Study Program, Faculty of Fisheries and Marine

Science, Universitas Padjadjaran


Abstract

Chlorella sp., dan Nannochloropsis sp. as two common single celled of marine Chlorophycean

microalgae were cultivated in modified saline karst water culture media. The survival and

growth of those two microalgae were the objectives of this study. There were three different

modified nutrients in saline karst water applied for Chlorella sp. And Nannochloropsis sp.

cultivation. The result shows that the highest density of Chlorella sp. was shown on the fourth

day, but dropped sharply to the tenth day, and had the pottential to increase at the end of the

observation. The highest density of Nannochloropsis sp. was reached on the sixth day, then

decreased slightly and stabilized, even showing an increase at the end of the observation.

Overall, Chlorella sp. and Nannochloropsis sp. showed different adaptation patterns for survival

and growth on modified saline karst water culture media.

Keywords: Modified saline karst-water; Nutrient; Single celled Chlorophycean.

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145

Distribution of Dissolved Heavy Metals Hg, Pb, Cd, and As Content in

Bojonegara Coastal Waters, Banten Bay

Edika Pradana Surbakti, Aliati Iswantari, Hefni Effendi and Sulistiono


University, Bogor, West Java, Indonesia, Campus of IPB Darmaga, Jalan Agatis, Bogor, 16680-West

Java, Indonesia


Marine Sciences, IPB University, Bogor, West Java, Indonesia, Campus of IPB Darmaga, Jalan Agatis,

Bogor, 16680-West Java, Indonesia


Abstract

Heavy metals that come from anthropogenic activities contribute and have a very significant

impact on the aquatic environment. This study aimed to determine the distribution of the

dissolved heavy metal content of mercury (Hg), lead (Pb), cadmium (Cd), and arsenic (As) in

Bojonegara Beach waters. Data were collected from October to December 2019 at six

observation stations with a purposive sampling method. The data analysis consisted of

analyzing water quality conditions, distribution of heavy metal content, and correlation

coefficient. Based on the analysis results, all of the heavy metals concentrations of Hg, Pb, Cd,

and as at the six observation stations is below the detection limit, except for Pb in November.

Correlation analysis results showed that the concentration of heavy metals in waters is

influenced by TSS, temperature, salinity, pH, and DO. Based on the Ministerial Decree of

Environment No. 51 of 2004 concerning Sea Water Quality Standards for Biota, the

concentration of dissolved heavy metals Hg, Pb, Cd, and As in Bojonegara coastal waters are

still below the quality standard. The content of the heavy metal Pb in Bojonegara Beach waters

is higher in river areas and tends to decrease towards the sea.

Keywords: Distribution; Concentration; Waste; Heavy metals.

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146

DNA Metabarcoding Approach for Fisheries Management

Inna Puspa Ayu1, Yusli Wardiatno1,2,3, Nurlisa A Butet1 and Hawis Madduppa4




Bogor 16680, West Java, Indonesia 4) Department of Marine Science and Technology, Faculty of Fisheries and Marine Sciences, IPB





Abstract

Increased publications on meta-barcoding promote an interest in fisheries research on

biodiversity, diet, and biomonitoring. These studies have primarily concentrated on an

ecosystem that has implications for fisheries management.The interpretation of ecosystems in

fisheries management is especially complex. Various theories have arisen to describe the

interactions that occur and eventually contribute to who and what role they play in ecology.

Identification of organisms is also a prerequisite for answering questions in the field of ecology.

This shows that reliable and accurate knowledge is important and desirable. Metabarcoding

as a modern molecular technique provides a realistic approach that lets ecologists analyze

organisms in complex environmental samples and solve the problem in the ecosystem quickly.

This paper explores the use of metabarcoding in fisheries management research and also

highlights the drawback and value of the process in the future.

Keyword: Diversity; Diet; Ecology; Food web.

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147

Some Population Parameters on The Common Carp (Cyprinus carpio, Linnaeus,

1758) Fish in Lake Paniai, Papua

Samuel and Siswanta Kaban

Research Institute for Inland Fisheries and Extension



Abstract

Common carp (Cyprinus carpio) fish is known as a fish introductions on some waters of the

lake in Indonesia and included in a group of herbivore fish. The Common carp fish population

in Lake was in the dominant number, so that its became the target catch by fishermen.

Estimation of some parameters on Common carp fish population in Lake Paniai was aimed to

evaluate the growth parameters, mortality, the fishing rate and recruitment pattern. Taking

and measuring the fish sample was done in the period from February to October 2016 by using

the fishing gear of gill nets with mesh sizes of 1.00 - 4.50 inches. The results showed that

Common carp fish population in Lake Paniai was dominated by individual lengths between 15-

25 cm with a frequency of 55.78%, the growth pattern of male fish were alometric (-) and

females were isometric. Asymptotic length (L∞) = 61.43 cm and the growth coefficient (K) =

0.32 per year. The rate of natural mortality (M) = 0.65 per year, the mortality rate of fishing (F)

= 0.52 per year, the total mortality rate (Z) = 1.17 per year and the exploitation rate (E) = 0.44.

The exploitation rate of Common carp fish was still below the its optimum value, thus an

attempt to catch this fish, could be still improved. Common carp fish populations caught by

mostly fishermen have had a chance to spawning thus Common carp fish population in the

lake was estimated to still preserved and could be utilized in a sustainable manner. Peak

recruitment occured only one year, namely in June.

Keywords: Population parameters, Common carp fish, Lake Paniai, Papua.

P2-12

dear participants and colleagues, - itn

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