mannar basin new edition-128529
TRANSCRIPT
Trends analysis of commercial Fish production in Mannar basin of Sri Lanka
Nalinda Ambagamuwa (128529)Department of Aquaculture & Fisheries
Faculty of Livestock Fisheries & NutritionWayamba University of Sri Lanka
IntroductionMannar basin is rich with numerous types of Fish resources and other
commercially important resources
It is directly involved with the Fish industry in Sri Lanka
Mannar basin consists with seven major fishery districts
Galle, Kaluthara, Colombo, Negombo,
Chillaw, Puttalam and Mannar
N
Rationale
• There are no much findings to determine the current fish production
trends of the Mannar basin
• There is no much research findings to make efficient policy decision to
conserve the fishery resources in Mannar basin
Major problems • Civil war condition ( Mainly in Mannar district)
• Natural disasters (Tsunami, storms, cyclones)
• Illegal fishing activities- Indian poaching
• Sand mining
• Coral mining
• Hydrocarbon exploration activities
Objectives
• To find out the basic trends of the fishery
• To describe the present situation of the fishery in the Mannar basin
• To identify the general problems in the selected fishing communities
• To evaluate the socio-economic situation of the selected fishery
districts
Methodology• Study area- Seven fishery districts in the Mannar basin
• Project period- 15 weeks
• Data collection
Fish production data Annual Marine production data (Year 1981-2015)
Commercial group-wise data (Year 2003-2015)
Fishing fleet data
Fisheries sector’s socio-economic data
N
Data were collected from;
Ministry of Fisheries and Aquatic Resource Development
District fisheries offices
The Department of Census & Statistics of Sri Lanka
National Aquatic Resources Research & development Agency (NARA
Year books)
Two basic test
• Sequential Mann Kendal test Main turning points in the fish production(1981-2015)
• Simple linear regression test Commercial Fish groups trends(2003-2015)
Marine annual fish production trends(1981-2015)
• SWOT analysis was conducted – with the aid of key informant persons
Analysis Method
Results
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
10000
20000
30000
40000
50000
60000
Annual marine fish production of fishery districts in the Mannar basin
Kaluthara Galle Colombo NegomboChilaw Puttalam Mannar
Year
Fish
Pro
ducti
on(M
t)
19811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015
-5
-4
-3
-2
-1
0
1
2
3
4
Marine Fish Production Trend of the Mannar fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti No any significant turning
point
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
-3
-2
-1
0
1
2
3
4
5
6
Marine Fish Production Trend of the Puttalam fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
5000
10000
15000
20000
25000
30000
35000
40000
Marine Sector Fish Catch of Chillaw District (Mt)
Chilaw
Year
Fish
Pro
ducti
on(M
t)
P-value 0.00P-value 0.00
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
-3
-2
-1
0
1
2
3
4
5
6
Marine Fish Production Trend of the Chillaw fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti
19811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015
-3
-2
-1
0
1
2
3
4
5
6Marine Fish Production Trend of the Negombo fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti
19811982
19831984
19851986
19871988
19891990
19911992
19931994
19951996
19971998
19992000
20012002
20032004
20052006
20072008
20092010
20112012
20132014
2015-3
-2
-1
0
1
2
3
4
Marine Fish Production Trend of the Colombo fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
-3
-2
-1
0
1
2
3
4
5
6
7
Marine Fish Production Trend of the Kaluthara fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
-3
-2
-1
0
1
2
3
4
5
6
7Marine Fish Production Trend of the Galle fishery district
u(ti) v(ti) Series3 Series4
Year
Uti &
Vti
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
50000
100000
150000
200000
250000
Annual Fish production of the Mannar basin
Mannar basin Production
Year
Fish
Pro
ducti
on(M
t) P-value 0.00
P-value 0.00
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
5000
10000
15000
20000
25000
Marine Sector Fish Catch of Mannar fishery district (Mt)
Mannar
No significant trend
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
50000
Marine Sector Fish Catch of Puttalam District (Mt)
Puttalam
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
5000
10000
15000
20000
25000
30000
35000
40000
Marine Sector Fish Catch of Chillaw District (Mt)
Chilaw
Year
Fish
Pro
ducti
on(M
t)
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
Marine annual production of Negombo fishery District (Mt)
Negombo
Year
Fish
Pro
ducti
on(M
t)
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
1000
2000
3000
4000
5000
6000
7000
8000
Marine Sector Fish Catch of Colombo District (Mt)
Colombo
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
10000
20000
30000
40000
50000
60000Marine Sector Fish production of Kaluthara District (Mt)
Kaluthara
Year
Fish
Pro
ducti
on(M
t)
19811983
19851987
19891991
19931995
19971999
20012003
20052007
20092011
20132015
0
10000
20000
30000
40000
50000
60000
Marine Sector Fish Catch of Galle District (Mt)
Galle
Year
Fish
Pro
ducti
on(M
t)
Districts annual production (Year 1981-2015)Percentage values of the annual production
Puttalam 19%
Mannar 8%Kaluthara
18%
Galle 16%
Colombo 2%Negombo
21%
Chillaw 16%
Significant trends of commercially important Fish groups
2003 2005 2007 2009 2011 2013 20150
2000400060008000
100001200014000
Large pelagic group of Puttalam fishery district
Large Pelagic
Year
Fish
Pro
ducti
on(M
t)
2003 2005 2007 2009 2011 2013 20150
5000
10000
15000
20000
Small pelagic group of Puttalam fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t)
2003 2005 2007 2009 2011 2013 20150
1000200030004000500060007000
Dermasal Group of Puttalam district
Dermasal
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
1000
2000
3000
4000
5000
Prawn Group of Puttalam fishery district
Prawns
YearFi
sh P
rodu
ction
(Mt)
P-value 0.001No significant trend
P-value 0.001
2003 2005 2007 2009 2011 2013 20150
2000400060008000
1000012000
Large pelagic group of Chillaw fishery District
Large Pelagic
Year
Fish
Pro
ducti
on(M
t)
2003 2005 2007 2009 2011 2013 20150
5000
10000
15000
20000
Small pelagic group of Chillaw fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
1000200030004000500060007000
Dermasal group of Chillaw fishery district
Dermasal
Year
Fish
Pro
ducti
on(M
t)
P-value 0.00
2003 2005 2007 2009 2011 2013 20150
5001000150020002500300035004000
Prawn group of Chillaw fishery district
Prawns
YearFi
sh P
rodu
ction
(Mt) P-value 0.002
P-value 0.006
2003 2005 2007 2009 2011 2013 20150
5000
10000
15000
20000
25000
Large pelagic group of Negombo fishery district
Large Pelagic
Year
Fish
Pro
ducti
on(M
t)
No significant trend
2003 2005 2007 2009 2011 2013 20150
2000400060008000
100001200014000
Small pelagic group of Negombo fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t)
2003 2005 2007 2009 2011 2013 20150
1000200030004000500060007000
Dermasal group of Negombo fishery district
Dermasal
Year
Fish
Pro
ducti
on(M
t)
P-value 0.00
2003 2005 2007 2009 2011 2013 20150
1000
2000
3000
4000
5000
Prawn group of Negombo fishery district
Prawns
YearFi
sh P
rodu
ction
(Mt)
No significant trend
P-value 0.021
2003 2005 2007 2009 2011 2013 20150
1000
2000
3000
4000
5000
Large pelagic group of Colombo fishery district
Large Pelagic
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
500
1000
1500
2000
Small pelagic group of Colombo fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
500
1000
1500
2000
Dermasal group of Colombo fishery district
Dermasal
Year
Fish
Pro
ducti
on(M
t)
No significant trend
2003 2005 2007 2009 2011 2013 20150
50100150200250300350400
Prawn group of Colombo fishery district
Prawns
YearFi
sh P
rodu
ction
(Mt) No significant trend
2003 2005 2007 2009 2011 2013 20150
2000400060008000
100001200014000
Large pelagic group of Mannar fishery district
Large Pelagic
Year
Fish
Pro
ducti
on(M
t)
2003 2005 2007 2009 2011 2013 20150
2000400060008000
1000012000
Small pelagic group of Mannar fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
1000
2000
3000
4000
5000
Dermasal group of Mannar fishery district
Dermasal
Year
Fish
Pro
ducti
on(M
t)
No significant trend
2003 2005 2007 2009 2011 2013 20150
500
1000
1500
2000
Prawn group of Mannar fishery district
Prawns
Year
Fish
Pro
ducti
on(M
t) P-value 0.006
P-value 0.017
2003 2005 2007 2009 2011 2013 20150
5000
10000
15000
20000
25000
30000
Large pelagic group of Galle fishery district
Large Pelagic
Year
Fish
Pro
ducti
on(M
t) P-value 0.018
2003 2005 2007 2009 2011 2013 20150
5000
10000
15000
20000
25000
Small pelagic group of Galle fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t)
No significant trend
2003 2005 2007 2009 2011 2013 20150
1000
2000
3000
4000
5000
6000
Dermasal group of Galle fishery district
Dermasal
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
50100150200250300
Prawn group of Galle fishery district
Prawns
YearFi
sh P
rodu
ction
(Mt)
No significant trend
2003 2005 2007 2009 2011 2013 20150
500010000150002000025000300003500040000
Large pelagic group of Kaluthara fishery district
Large Pelagic
Year
Fish
Pro
ducti
on(M
t)
No significant trend
2003 2005 2007 2009 2011 2013 20150
2000400060008000
100001200014000
Small pelagic group of Kaluthara fishery district
Small Pelagic
Year
Fish
Pro
ducti
on(M
t)
No significant trend
2003 2005 2007 2009 2011 2013 20150
1000
2000
3000
4000
5000
Dermasal group of Kaluthara fishery district
Dermasal
Year
Fish
Pro
ducti
on(M
t) No significant trend
2003 2005 2007 2009 2011 2013 20150
100200300400500600700800
Prawn group of Kaluthara fishery District
Prawns
YearFi
sh P
rodu
ction
(Mt)
No significant trend
Active Fishers by districts
1989 1996 1999 2004 2008 2011 2012 2013 2014 20150
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
Colombo Negombo Chilaw Puttalam Mannar Galle Kaluthara
Year
Num
ber o
f Fis
herm
en
Major fishing craftsIMUL IDAY NTRB
OFRP MTRB
Discussion• Study reveals the main trends for the marine annual production since
1981 to 2015 and trends of commercial fish groups since 2003 to 2015• After the tsunami devastation, trend of the annual production of
Mannar basin is taking a positive state until the year 2015• Mannar basin is highly rich and diverse with natural resources• Negombo and Kaluthara fishery districts are the high productive ones• Natural disasters are directly impact on the production of the Mannar
basin
Conclusion• Negombo fishery district is the highest contributor to the Fish production of
the Mannar basin among all the other districts.
• Colombo fishery district is the least contributor to the Fish production of
the Mannar basin
• Except for Mannar district, all the other districts were showed significant
upward trends for the marine annual production
• Except for Kaluthara and Colombo fishery districts, all other fishery districts
showed positive trends for certain commercial Fish groups
SWOT analysis resultsStrengths
Contributes significantly to the Fish production
Well facilitated harbors in districts of Mannar basin
Availability of valuable Fish resourcesGovernment hand to increase
Multiday boats in fishing after the tsunami devastation
Weaknesses
Developed industries are provisioned in western province
By catch and black Fish landingsHighest post harvest lossesPoor enforcement of rules &
regulations Lack of infrastructure for large scale
fishing
Opportunities
Vast tuna fishery potential, as there is a potential for large pelagic fishes
Fish based eco-tourisms Tax relieve for fishery exports
Threats
Oil spills and waste disposal Illegal fishing Destructive fishing methods & over
exploitation Coral & sand mining Climate changes
References• MOFAR 2014, Fisheries Statistics, Ministry of Fishery and Aquatic
Resource• Jayasinghe, J. M. P. K. (2014). Exploratory drilling for hydrocarbon
resources in the Cauvery basin : Potential impacts on artisanal fishery and fishing grounds of Sri Lanka. Journal of the Marine Biological Association of India, 56, 1–5.
Acknowledgement• Prof.J.M.P.K.Jayasinghe, Senior professor, Department of Aquaculture
and Fisheries, Wayamba University of Sri Lanka
• Ms.Ursla peiris, lecturer, Biostatistics, Wayamba University of Sri Lanka
• Assistant director of district fisheries office in Mannar district
• President of fishery community in the Mannar district • For my family & friends
Additional Information
Main fishing crafts• IMUL - Inboard Multi-day Boats, IDAY - Inboard Single-day Boats,
• OFRP - Out-board engine FiberglassReinforced Plastic Boats,
• MTRB - Motorized Traditional Boats,
• NTRB - Non-motorized Traditional Boats
Puttalam10% Chillaw
9%
Negombo22%Colombo
1%Mannar
6%Galle20%
Kaluthara33%
Large Pelagic Production(Year 2003-2015)
Puttalam20%
Chillaw24%
Negombo20%
Colombo1%
Mannar8%
Galle15%
Kaluthara12%
Small Pelagic production(2003-2015)
Puttalam17%
Chillaw21%
Negombo18%
Colombo3%
Mannar16%
Galle11%
Kaluthara14%
Dermasal group production(2003-2015)
Puttalam29%
Chillaw21%
Negombo37%
Colombo1%
Mannar8%
Galle1%Kaluthara
2%
Prawns group production(2003-2015)
Commercial group’s production as a percentage
Puttalam10%
Chillaw9%
Negombo22%
Colombo1%
Mannar6%
Galle20%
Kaluthara33%
Large Pelagic Production(Year 2003-2015)