ecological status of the river tamiš in serbia - basis for development of the best water management...
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Ecological status of the River Tamiš in Serbia - basis for development of the best water management practices for maintaining and
enhancing the values of the River Tamiš Ivana TeodorovićUniversity of Novi SadFaculty of SciencesDept. Biology & Ecology
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation LegislationZrenjanin, 27.10.10.
Integrated water resource management
Equitable use (including ecosystem as one of the users?)
Taking into account all possible aspects and viewpoints
UN Milenium Assessment 2005: concept of ecosystem goods and services – how to integrate into integrated water resource management?
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Water Framework Directive (WFD)
Modern Bible of water management Ultimate goal: good ecological & chemical status by
2015 Phylosophy: integrated management – catchment
approach River Basin Management Plans 2009 (first cycle),
iterations 2015 i 2021 Special focus on protected areas (water abstraction,
Natura sites)
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Danube River Basin- DRBDMP
ICPDR (Danube Convention, Serbia ratified, WFD – not mandatory, but commitment) – based on Roof Report 2004
Plan contains: Identification of significant pressures: organic pollution, nutrients,
hazardous substances (priority and DRB specific priority), hydromorphological alterations)
Identification of HMWB Risk assessment (failure to achieve good status) Program of measures Horizontal and vertical integration with other EU policy and
legislation (Flood Directive, IPPC, Nitrate, Urban Waste Water, Bird, Habitat, Natura...)
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
www.tamisproject.net
Objectives
Analyses of physical, chemical and biological quality elements needed for integrated assessment of ecological and chemical status of the Srbian section of the River Tamis
Basis for integrated water management plans
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Hydrology, hiydromorphology Chemical and ecotoxicological analyses
basic water quality parameters specific pollutants in water and sediment bioaccumulation in fish
Biological quality elements Qualitative and quantitative analysis of phyto,
zooplankton, bottom fauna, fish and macrophytes microbiology and chlorophyl a
Physical analysis (radioactivity) Water, sediment, fish
Project activities - defined by the ToR
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Hydrology (1)
DRBDMP: Tamiš is an important Danube tributary (> 4000 km2), but not included into TNMN
Total length 395 km, Serbia 118 km Catchment 7500 km2, Serbia 1500 km2 In Serbia only 1 tributary - Brzava Width 50-70 m, depth up to 7 m Connected with DTD (Botoš) Slope 0.002-0.006 ‰ Discharge at the confluence with the
River Danube 50 m3/s 3 weirs, 1 ship lock
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Hydrology (2)
Tomaševac N 45º 17,697“, E 20º 38,539“0-2 cm
30 cm25 cm
Farkaždin N 45º 11,045“ , E 20º 28,916“0-5 cm
5-10 cm15 cm
PančevoN 44º 52,635“, E 20º 37,789“,
5-10cm
40 cm 60 cm
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Hydrology (3)
Organic matter content2.1 – 8.2 %
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Hydromorphology (1)
Broj deonice LON_EX LAT_EX ALT_EX LAT LON
1 20,8487 45,4288 73,0000 +45.4287540 +20.8486787
2 20,6267 45,2841 75,0000 +45.2841115 +20.6267497
3 20,6360 44,8563 71,0000 +44.8563283 +20.6360122
4 20,7728 45,3578 74,0000 +45.3577500 +20.7727501
5 20,4830 45,1853 73,0000 +45.1852500 +20.4830278
6 20,4190 45,0823 71,0000 +45.0823333 +20.4189723
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Hydromorphology (2)
RHS report – based on two indices: Habitat Quality Assessment - HQA - describes the diversity of
river habitats and objects Hydromorphological modification - HMS - occurrence,
frequency and importance of modifications in the river bed / indicates the level of anthropogenic alterations
HMC HMC Description HMS Score
1 Pristine/semi-natural 0-16
2 Predominantly unmodified 17-199
3 Obviously modified 200-499
4 Significantly modified 500-1399
5 Severely modified 1400+
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Tamiš HMS score
555
200
760
310
535
1395
0
200
400
600
800
1000
1200
1400
1600
RHS 1 RHS 2 RHS 3 RHS 4 RHS 5 RHS 6RHS deonice
HMS
Hydromorphology (3)
Tamiš HQA score
53 50
35
44
71
38
0
10
20
30
40
50
60
70
80
RHS 1 RHS 2 RHS 3 RHS 4 RHS 5 RHS 6RHS deonice
HQA
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
The Rive
r Tamis
is being eva
luated as medium to
signific
antly m
odified w
ater body (
HMC class
es 3 and 4)
In spite
of all r
iver re
gulations u
ndertake
n in th
e past,
the Rive
r Tamis
can st
ill be re
garded as a w
ater body o
f high habita
t potentia
l and dive
rsity.
Implementatio
n of the adaptiv
e management m
ight decre
ase H
MC for a
n order of m
agnitude
Water chemistry - Basic water quality parameters
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Water quality
at Jaša Tomić generally good (I
– II class)
At the sampling site
upstream th
e city of Pančevo, a
ll water q
uality parameters
exceed the natio
nal enviro
nmental standards set for I-
II class as well a
s ICPDR ta
rget values
Water chemistry- Water quality (2): nutrients
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Concentrations of nitrates and orthophosphate
exceed III-IV and V class, respectively
Water chemistry - Metals in water
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Content of Cd, Pb, Hg and As within I/II class values
Water chemistrySpecific organic pollutants in water
PAH benzo(b)fluoranthen, benzo(k)fluoranthen and indeno(1,2,3-cd)pyrene (priority
pollutants) and dibenzo(a,h)anthracene i phenanthrene, were detected in concentrations above the practical quantisation limits.
Concentrations of Benzo(b)- and benzo(k)fluoranthene remain below 15 ng/l - EU environmental quality standard
Sum of dibenzo(a,h)anthracene and indeno(1,2,3-cd)pyrene - 15 ng/l –comparison with EU regulation not possible as it is set for the sum of benzo(g,h,i)perylene and indeno(1,2,3-cd)pyrene
Phenanthrene – along the river in spring and summer up to 12 ng/l. Te rest of PAHs <2,0 ng/l and/or <0,8 ng/l According to national regulations, content of PAHs remains within the limits of water
class I-II Organochlorine pesticids
Heptachlorepoxside is the only organochlorine pesticide detected (Jabuka, autumn) 8,76 ng/l far bellow I/II class values (18 µg/l) set by national regulations
All other pesticide <5,0 ng/l and /or <2,0 ng/l
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
According to contents of PAHs, organochlorine pesticids and PCBs
water of the river Tamiš can be classified as I/II class
Sediment qualityMetals in sediments
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
As regard to
contamination by hazardous substances, s
ediment q
uality is
generally good
Sediment qualityMineral oils
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Corrected mineral oil content (mg/kg)
0
1000
2000
3000
4000
5000
6000
7000
S D S D S D S D S D S D S D S D S D
Summer Autumn Spring Summer Autumn Spring Summer Autumn Spring
Jaša Tomić - Sečanj Jabuka Before dam at Pančevo
Mean
Mineral o
ils – th
e highest load at th
e samplin
g site Ja
sa Tomić-
Sečanj –
class 3
In samples f
rom other two si
tes remains w
ithin class 2 – slig
htly contaminated
Sediment quality - PAHs
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
0
50
100
150
200
250
300
350
400
450
500
S D S D S D S D S D S D S D S D S D
Summer Autumn Spring Summer Autumn Spring Summer Autumn Spring
Jaša Tomić - Sečanj Jabuka Before dam at Pančevo
Sum of PAHs (µg/kg)
Sediment not contaminated with PAHs
Sediment qualityOrganochlorine pesticides and PCBs
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Organochlorine pesticides - mainly class 0 and 1
Sediment not contaminated with PCBs
(Eco)toxicology Metals in edible fish tissue
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
No human health risk
(Eco)toxicology PAHs in edible fish tissue
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
No human health risk
(Eco)toxicology PCBs and organochlorine pesticidesin edible fish tissue
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
No human health risk
Physical analyses (1) Radionuclides in water
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
radionuclides were not detected in the tested samples
Physical analyses (2) Radionuclides in sediments
Dalmacija, B., Prica, M., Ivančev – Tumbas, I., van der Kooij, A., Roncevic, S., Krcmar, D., Bikit, I, Teodorovic, I. (2006). Pollution of the Begej Canal sediment – metals, radioactivity and toxicity assessment. Environment International, 32, 606 – 615.
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
The measured ra
dioactivity didn’t deviate fro
m usual values fo
r agric
ultural s
oil in Vojvodina
No indicatio
n for th
e presence of depleted uranium
Physical analyses (3) Radionuclides in biota
Sečanj babuška – 9 uzoraka
uzorak 111-114 115-119
radionuklid Aktivnost [Bq/kg]40K 64±18 63±15
226Ra < 6 < 5232Th < 6 < 5238U < 19 < 19
137Cs < 3 < 3
B. Despotovac babuška – 14 uzoraka
uzorak 231-234 235-239 2310-2314
radionuklid Aktivnost [Bq/kg]40K 46±15 66±18 68±16
226Ra 1.8±0.9 < 7 < 6232Th < 2.0 < 6 < 5238U < 20 < 19 < 19
137Cs < 2.8 < 2.9 < 2.7Opovo babuška – 6 uzoraka
radionuklid Aktivnost [Bq/kg]40K 73±16
226Ra < 6232Th < 5238U < 17
137Cs < 2.5
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Physical analyses (4) Radionuclides in biota
Sečanj smuđ – 9 uzoraka
uzorak 111-114 115-119
radionuklid Aktivnost [Bq/kg]40K 64±18 63±15
226Ra < 6 < 5232Th < 6 < 5238U < 19 < 19
137Cs < 3 < 3
Sečanj som – 5 uzoraka
radionuklid Aktivnost [Bq/kg]40K 67±15
226Ra < 5232Th < 5238U < 16
137Cs < 2.8
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
No human health risk
Biological quality elements - Vegetation (1)
The wetland and freshwater vegetation of Panonian basin, predetermined by potential natural vegetation type of Salici-Populetum, has been changed recently due to the irrigation and human pressure
Intrazonal submersed plant community: Ceratophylletum demersi and Myriophyllo-Potametum
Submersed invasive species such as Elodea Canadensis and Vallisneria spiralis overabundant submersed vegetation is typically the result of introduction of invasive species which out-compete native plants, and grow unchecked by authentic herbivores or parasites.
Floating vegetation is represented with a pioneer community Salivinio-Spirodeletum polyrrizae and typical Nymphaetum albo-lutae and Hydrochari nimphoidetum peltatae fragments.
typical Phragmitetea species are present with a somewhat similar presence level. Within this group association of emerged vegetation of reed in stagnant and slow-flowing waters Scirpo–Phragmitetum is dominating.
Serbian Red List taxa Trapa nattans agg and Nymphae alba give a significant natural relevance to the researched area
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements Vegetation (2)
1
2
3
4
5
678
9
First CA axis
Second CA axis
1 2 6 7 8 9 3 4 5
0,20
0,15
0,10
0,05
0,00
Heterogeneity ( Chord distance)
Classif ication method (UPGMA )
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements Vegetation (3)
L-deonice Specijsko bogatstvo Shannon-Wiener Hill 05
1 4 1,386 4,
2 6 1,723 5,792
3 8 1,99 7,657
4 7 1,909 6,867
5 6 1,694 5,711
6 15 2,642 14,498
7 17 2,771 16,49
8 16 2,715 15,559
9 15 2,662 14,671
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Corine – 11 habitat typesEUNIS classification: 48 habitat types
Biological quality elements Vegetation + habitats (4)
1 234
56
7
89
First CCA axis
Second CCA axis
HQA score
HM Score
1
2
3
4
5
6
7 8
First CCA axis
Second CCA axis
HQA score
HM ScoreWith L stretch Without L
1
2
3
45
678
9First CCA axis
Second CCA axis
HQA score
HM Score
Presence of invasive alien species
1
23
4
567
89
First CCA axis
Second CCA axis
Geology
Pedology LB
Pedology RB1
2
34
5
67
89
First CCA axis
Second CCA axis
Shannon-Wiener
Geology
Pedology LBPedology RB
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Biological quality elements Phytoplankton (1)
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Bacillariophyta58%
Euglenophyta11%
Chlorophyta25%
Cyanobacteria 3%
Chrysophyta3%
Spring: 36 taxa, 5 classes
Bacillariophyta42%
Chlorophyta29%
Cyanobacteria 3%
Chrysophyta5%
Pyrrhophyta3%
Euglenophyta18%
Autumn – 40 taxa, 6 classes
Cyanobacteria 4%
Bacillariophyta37%
Chlorophyta42%
Pyrrhophyta4%Euglenophyta
13%
Summer: 56 species, 5 classes
Saprobic index: beta-mezosaprobic type eg. II water quality class
Biological quality elements Phytoplankton (2)
Chlorophyll a (mg/m3)
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Jaša Tomić Sečanj Tomaševac Farkaždin Opovo Pančevo
Summer 12.8 38.5 25.0 15.9 18.2 15.9
Autumn < 1 3.6 < 1 1.2 7.1 < 1
Spring 2.4 3.6 1.8 2.0 2.4 1.2
Trophic state MT MEU MEU MT MT MT
Proposal MLIM expert group of ICPDR
I II I I I I
Biological quality elements Zooplankton (1)
Zooplankton community is underdeveloped, which particularly stands for euriplanktonic species.
Among the registered taxa, the majority belong to phytophylic species. The communities, regardless of sampling site and the season, are
dominated by the group Rotatoria. Group Cladocera is represented by phytophylic species only. Within the group Copepoda only larval stages nauplius and copepodit
have been recorded
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements Zooplankton (2)
Saprobic index ranged from oligo to β mezosaprobic. Such a low values are most probably caused by the
dominance of phytophylic species which individual saprobic value proved inadequate for such types of water bodies. Therefore, it could be speculated that the real saprobic status might be considerably higher.
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements Bottom fauna (1)
Amphipoda3%
Isopoda3%
Turbellaria3%Hirudinea
3%Oligochaetae
36%
Gastropoda11%
Bivalvia8%
Ephemeroptera3%
Trichoptera3%
Odonata19%
Diptera8%
11 groups of aquatic macroinvertebratesGroup Oligochaeta - 13 species; Djukić et al, 1987 - 6 oligochaeta species
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements - Bottom fauna (2)
Jaša Tomić: in total 5 groups: Bivalvia, Oligochaeta, Diptera, Odonata i Trichoptera
Sečanj: in total 3 groups Bivalvia, Oligochaeta i Diptera Tomaševac: in total 11 groups Amphipoda, Bivalvia,
Oligochaeta , Turbellaria, Hirudinea, Ephemeroptera, Diptera, Odonata, Trichoptera, Gastropoda, Isopoda
Farkaždin: in total 6 groups Amphipoda, Bivalvia, Gastropoda, Oligochaeta, Diptera, Trichoptera
Opovo: in total 6 groups : Amphipoda, Bivalvia, Gastropoda, Oligochaeta, Diptera i Odonata
Pančevo: in total 5 groups: Bivalvia, Gastropoda, Hirudinea, Oligochaeta i Diptera
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements Bottom fauna (3)
PančevoOpovo
FarkaždinTomaševacSečanj
Jaša Tomić
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Biological quality elements Bottom fauna (4)Prosečan broj oligoheta po lokalitetu
0
200
400
600
800
1000
1200
1400
1600
1800
JAŠA T
OM
IC
TOM
AŠEVAC
FARKAŽDIN
OPOVO
Lokalitet
Bro
j 12.08.2009.
28.10.2009.
28.04.2010.
Prosečan broj oligoheta po obalama
0
200
400
600
800
1000
1200
1400
leva sredina desna
Obala
Bro
j 12.08.2009
29.10.2009
29.04.2010
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Principle group of macrozoobenthos – Group Oligochaeta
Saprobic index (Pantle- Buck) α – mezosabrobic zone, water quality class III
Biological quality elements Fish fauna (1)
28 species22 genera8 famillies
34 species PUJIN et al., 198720 species MALETIN et al., 1998
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Biological quality elements - Fish fauna (2)
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
2 vulnerable, 6 rare, 11 common and 9 exotic species
Absolute value of fish fauna 28, re
lative value 1.04.
Biological quality elements - Fish fauna (3)
Saprobic Index
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements - Fish fauna (4)
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Biological quality elements -Fish fauna (5)
0
50100
150200
250
300350
400450
500
0+ 1+ 2+ 3+
Uzrast (godina)
Sta
nd
ard
na
du
žin
a (m
m)
linearni rast tempo rasta
0
100
200
300
400
500
600
0+ 1+ 2+ 3+ 4+ 5+
Uzrast (godina)
Sta
nd
ard
na
du
žin
a (m
m)
linearni rast tempo rasta
0
100
200
300
400
500
0+ 1+ 2+ 3+ 4+ 5+
Uzrast (godina)
Sta
nd
ard
na
du
žin
a (m
m)
linearni rast tempo rasta
Pike: 1+ - 3+, sex ratio 3:1 Foulton’s coefficient 0.9
Pike-perch: 0+ - 5+, sex ratio 3:1 Foulton’s coefficient 1.06 - 1.13
Asp: 0+ - 5+, sex-ratio 1:1Foulton’s coefficient 1.38 - 1.47
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements - Fish fauna (6)
Bream: 1+ - 5+, sex ratio 2:1 Foulton’s coefficient 1.82 – 2.05
Blicca bjoerkna: 0+ - 5+, sex ratio 1:1 Foulton’s coefficient 1.77 – 2.41
Carp: 0+ - 5+, sex ratio 2:1 Foulton’s coefficient 1.95 - 2.27
0
50
100
150
200
250
300
0+ 1+ 2+ 3+ 4+ 5+
Uzrast (godina)
Sta
nd
ard
na
du
žin
a (m
m)
linearni rast tempo rasta
0
50
100
150
200
250
0+ 1+ 2+ 3+ 4+ 5+
Uzrast (godina)
Sta
nd
ard
na
du
žin
a (m
m)
linearni rast tempo rasta
0
100
200
300
400
500
600
0+ 1+ 2+ 3+ 4+ 5+
Uzrast (godina)
Sta
nd
ard
na
du
žin
a (m
m)
linearni rast tempo rasta
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Biological quality elements - Fish fauna (7)
Goldfish: 1+ - 5+, sex ratio 1:1 Foulton’s coefficient 2.82 – 2.99
0
50
100
150
200
250
300
350
0+ 1+ 2+ 3+ 4+ 5+
linearni rast tempo rasta
TL = 1,1892SL + 6,2244
R2 = 0,9967
0
50
100
150
200
250
300
350
400
0 50 100 150 200 250 300 350
standardna dužina (mm)to
taln
a d
uži
na
(mm
)
W= 2E-05L3,1103
R2 = 0,9963
0100200300400500600700800900
1000
0 50 100 150 200 250 300 350
standardna dužina (mm)
mas
a (g
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Biological quality elements - Microbiology (1)
1
10
100
1000
10000
100000
1 2 3 4 5 6
lokaliteti
CF
U/m
l
leto
jesen
proleće
III klasa
I klasa
II klasa
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
1 2 3 4 5 6
lokaliteti
IFA
um
ol
pN
P/s
/dm
3
leto
jesen
proleće
II A
II B
III A
II - III
Heterothrophs
IFA
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
I-II class – slight organic pollution
Biological quality elements - Microbiology (2)
10
100
1000
10000
100000
1 2 3 4 5 6
lokaliteti
TC
(C
FU
/100
ml)
leto
jesen
proleće
II klasa
III klasa
1
10
100
1000
10000
1 2 3 4 5 6
lokaliteti
EC
(C
FU
/100
ml)
leto
jesen
proleće
II klasa
III klasa
I klasa
Total coliformes
E.coli
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Total coliforms (TC) II-III class
Escherichia coli – II class
Concluding remarks (1)
Water quality at the border sampling site Jaša Tomić is generally good (I – II class), with the exception of nitrate (III-IV class) and orthophosphate (V class) concentrations. However, at the sampling site upstream the city of Pančevo, all water quality parameters exceed the national environmental standards set for I-II class as well as ICPDR target values.
The content of hazardous substances and priority pollutants remain below the EQS.
Radionuclides have not been detected in water column. According to the saprobic index values based on the structure and
composition of phytoplankton and fish fauna, the River Tamis belongs to -mezosaprobic type of waters (II class) along the whole stretch, while values based on zooplankton indicate even lower saprobic status - oligo to β mezosaprobic.
According to the number of heterotrophic bacteria, the river Tamis water can be classified into I-II class.
The total number of coliforms indicates II – III class, while the number of faecal coliforms (Escherichia coli) reaches the values for moderately polluted water bodies (II class).
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Concluding remarks (2)
Sediment quality, at least regarding the content of heavy metals, PAHs, PCBs and organochlorine pesticides is good, but the statement does not hold for arsenic and mineral oils.
Radionuclides fluctuate within a range typical for soils and river sediments.
The sediment load along the river ranges from 0-10cm in the centre of the riverbed, to 40-60 cm at the river banks.
It consists mainly of send, while silt and organic matter content is low to medium.
Benthic fauna is dominated by the group of Oligochaete - saprobic index values based upon its structure and composition indicate α – mezosaprobic conditions (III class).
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Concluding remarks (3)
As far as the hydromorphological habitat alterations are concerned, the River Tamis is being evaluated as medium to significantly modified water body (HMC classes 3 and 4).
In spite of all river regulations undertaken in the past, the River Tamis can still be regarded as a water body of high habitat potential and diversity.
According to CORINE classification system, 11 habitat types can be distinguished along the Serbian stretch of river Tamis.
Assessment using EUNIS classification system resulted in a respectful 48 habitat types – which is considered as significant habitat diversity.
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Concluding remarks (4) Good status of fish fauna (28 identified species,
which makes more than a third ever registered species in Vojvodina) derives from generally favourable ecological conditions along the River Tamis, including sufficient number and diversity of adequate habitats, ample quantities of available food, favourable oxygen conditions and good water quality, including absence of potentially toxic substances.
There is no human health risk of fish consumption as the content of hazardous substances and radioactivity is far bellow all applicable standards for dietary fish.
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Shortcomings of the Study Short study: 10 month, 3 seasons – indication of the current
status rather than trend analysis Artificially divided to RO and SER section, what about
modern catchment approach? Main river channel is not a river - the most valuable sections
not covered (as regard to ecology and ecosystem approach) 6 sampling sites for biological quality elements, 3 for
physico-chemical parameters, some even not matching – impossible to establish longitudinal gradient
Low No of samples, extremely high No of parameters Risk analysis not possible
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Recommendations
Regular monitoring and biomonitoring Careful selection of sampling sites Careful selection of parameters Integrated catchment approach Special attention: oxbows, side arms and
meanders
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.
Recommendations Precondition: consensus reached upon public
participation process on prioritization of ecosystem services expected, followed by the elaboration of measures needed to maintain ecosystem’s goods and functions critical to reach agreed ecosystem services
Workshop: Building Capacity – Supporting the Implementation of EU Nature Conservation Legislation, Zrenjanin, 27.10.10.