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Biological valuation of the Gulf of Gdansk
- methdology testing -
Tomasz Zarzycki & Katarzyna Karwowska
Presentation structure
• Case study area– Location, background
information– Why it was chosen?
• Biological valuation– Attributes of biodiversity– Data collection– Assessment questions– Maps of values
• Lessons learned– Data gathering/sharing– Assessment protocol
Case study area- Gulf of Gdansk -
• location
Puck Bay
Case study area- Gulf of Gdansk -
1Salinity [PSU] 0.65 – 12.23Organic matter content [% dw ]
0.2 - 256Nitrogen
input [t y-1]118.000
1pH 7.52 – 8.703Sediment fraction
<63 mm [%]0 - >50
6Phosphorus input [t y-1]
7.000
4Oxygen saturation [%]near-bottom waters surface
waters
40-80 (20)80-170
3C/N-ratio[0-10 cm depth]
5-257Limitation of
PP
winter - temp.summer – phosphate
1Dissolved inorg. Nitrogen [mmol l-1 ]
14.38
3Sedim. oxyg. demand
[mmol O2m-2d-1]
to 500
1Total nitrogen [mmol l-1 ]
26.963Phosphate release
[mgPm-2d-1]1 - 612
Main pollutants
Vistula riverVistula Lagoon
2 Winter max. [mmol l-1 ]
15.903Ammonia release
[mgNm-2d-1]to 400 8Trophic level High trophy
2Dissolved inorg. Phosphate [mmol l-1 ]
0.504Heavy metals
mg kg-1 dw (0-10cm)Zn: 52-74; Cu:12-16;Cd: 0.4-0.7; Pb:23-16
1Total phosphorus [mmol l-1 ]
1.295Sediment
distributionvariously grained sands; silty sands;
sandy silts; clayey silts2 Winter max. [mmol l-1 ]
0.79
1 -Łysiak-Pastuszak (2004); 2 - Majewski (1990); 3 – Kruk-Dowgiałło and Dubrawski (1998); 4 - Krzymiński et al. (2000); 5 - Krzymiński et al. (2004); 6 - Andrulewicz and Witek (2002); 7 - Renk (2000); 8 - Łysiak-Pastuszak and Piątkowska (2004)
Case study area- Gulf of Gdansk -
• Why it was chosen as a case study?
– Data availability– Socioeconomic valuation site
(in the frames of MarBEF, WP5)– Area of interference
• Range of stakeholders• Different use
– Nature preservation (NATURA 2000)
– Ship traffic
– Coastal development
– No management plan• Pilot study for marine spatial planning in Poland – 1st exercise
Biological valuation- Gulf of Gdansk -
• Attributes of biodiversity that were analyzed:– macrozoobenthos– fish– birds (waterfowl)
• Attributes that are still missing– vascular plants– macro algae– zoo- and phyto- plankton– sea mammals
- Biological valuation -Gulf of Gdansk
DATA COLLECTION
MACROZOOBENTHOS– dataset from 1996
• Eckman Grab of 10x10cm, sieve mesh size 0,5mm• triplicate samples from each locality pooled together• www.iopan.gda.pl/projects/puckbay/Pucka/pp4.htm by
Lech Kotwicki
• MAP OF SAMPLING POINTS
MAP OF SAMPLINGPOINTS FOR MACROBENTHOS 1996
MACROZOOBENTHOS– dataset from 2005
• Van Veen Grab, area 0,1m2; sieve mesh size 0,5mm• triplicate samples from each locality pooled together• Data were collected for Master Thesis of Magda
Dawidowska
• MAP OF SAMPLING POINTS
- Biological valuation -Gulf of Gdansk
DATA COLLECTION
MAP OF SAMPLINGPOINTS FOR MACROBENTHOS 2006
FISH
– Dataset from 2006– Beamtrawl, mesh size 6mm, 2,5 m wide.– Trawling for certain distance– Data was collected during practical course, for
students of oceanography, not published, extracted from the report
• MAP OF SAMPLING POINTS
- Biological valuation -Gulf of Gdansk
DATA COLLECTION
MAP OF SAMPLINGPATHS FOR FISH 2006
BIRDS
– Dataset from 1999/2000 “birds year”
(season autumn - winter - spring)
Coastline is divided into 51 sections. Trained volunteers, students and scientists walk along the coast divisions and observe waterfowl.
• INTERPOLATION for the 1km from the coastline
• MAP OF SAMPLING POINTS
- Biological valuation -Gulf of Gdansk
DATA COLLECTION
MAP OF SAMPLINGAREAS FOR BIRDS 2006
DISTRIBUTIONON DATAAVAILABILITY
MACROZOOBENTHOS– Is the subarea characterized by high counts of many
species?– Is the abundance of a certain species very high in the
subarea?– Is the subarea characterized by the presence of many rare
species?– Is the abundance of rare species high in the subarea?– Is the abundance habitat-forming species high in the
subarea?– Is the abundance of ecologically significant species high in
the subarea?– Is the species richness in the subarea high?
- Biological valuation -Gulf of Gdansk
ASSESSMENT QUESTIONS
MACROZOOBENTHOS– Is the subarea characterized by the presence of many rare
species? – Is the abundance of rare species high in the subarea?
Bathyporeia pilosa, Crangon crangon, Gammarus locusta,Halicryptus spinulosus, Mysis mixta, Saduria entomon, Turbelaria
– Is the abundance habitat-forming species high in the subarea?Balanus improvisus, Cerastoderma glaucum, Macoma balthica, Mya arenaria, Mytilus edulis
- Biological valuation -Gulf of Gdansk
ASSESSMENT QUESTIONS
– Is the abundance of ecologically significant species high in the subarea?
Gammarus oceanicus, Gammarus salinus, Gammarus zaddachi, Hydrobia sp., Idotea balthica, Idotea chelipes,
GRAZERS
Saduria entomon,FOOD
SOURCE
Hediste diversicolor
BIOTURBTORS
- Biological valuation -Gulf of Gdansk
ASSESSMENT QUESTIONS
- Biological valuation -Gulf of Gdansk
SUBZONES DIVISION
GRID FOR MACROBENTHOS250m x 250m
GRID FOR FISH/BIRDS1000m x 1000m
-Biological valuationGulf of Gdansk -
ASSESSMENT QUESTIONS
FISH– Is the subarea characterized by high counts of
many species?– Is the abundance of a certain species very high in
the subarea?– Is the abundance of ecologically significant species
high in the subarea?– Is the species richness in the subarea high?– Is the subarea highly productive?
FISH
– Is the abundance of ecologically significant species high in the subarea?
Gadus morhua, Platichthys flesus, Zoarces viviparus
PREDATORS
-Biological valuationGulf of Gdansk -
ASSESSMENT QUESTIONS
-Biological valuationGulf of Gdansk -
ASSESSMENT QUESTIONS
BIRDS– Is the species richness in the subarea high?– Is the subarea characterized by the presence of
many rare species?– Is the abundance of rare species high in the
subarea?
BIRDS
– Is the subarea characterized by the presence of many rare species?
– Is the abundance of rare species high in the subarea?
Alca torda, Anser brachyrhynchus, Branta ruficollis, Cepphus grylle, Gavia stellata, Netta rufina, Podiceps grisegena, Tachybaptus ruficollis
-Biological valuationGulf of Gdansk -
ASSESSMENT QUESTIONS
Values Birds - Total
Values Birds - Total
Total Value of area Birds and Fish
Data gathering/sharing Assessment protocol
not easy to get detailed data on density/productivity
no easy to get most recent data
potential “threat” for commercial use (EEA – private consultancy companies)
changing environment causes changes in structure of macrobenthic communities
subjectivity in choosing ecologically significant species
productivity is not always a value (macroalgae, fish)
invasive species / non indigenous species,
include / exclude
-Biological valuation- Gulf of Gdansk -LESSONS LEARNED
Habitat Directive
Birds Directive