Transcript Biological valuation of the Gulf of Gdansk - lessons learned -

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]
1pH
0.65 –
12.2
3Organic
7.52 –
8.70
3Sediment
matter
content [% dw ]
fraction
<63 mm [%]
0.2 - 25
0 - >50
6Nitrogen
input [t y-1]
6Phosphorus
input [t y-1]
118.000
7.000
4Oxygen
saturation
[%]near-bottom
waters surface
waters
40-80 (20)
80-170
3C/N-ratio
[0-10 cm depth]
5-25
7Limitation
of
PP
1Dissolved
inorg.
Nitrogen [mmol l-1 ]
1Total
nitrogen
[mmol l-1 ]
2 Winter
max.
[mmol l-1 ]
2Dissolved
inorg.
Phosphate [mmol l-1 ]
1Total
phosphorus
[mmol l-1 ]
2 Winter
max.
[mmol l-1 ]
3Sedim.
14.38
26.96
15.90
0.50
1.29
oxyg.
demand
[mmol O2m-2d-1]
3Phosphate
release
-2
[mgPm d-1]
3Ammonia
release
[mgNm-2d-1]
4Heavy
mg
metals
(0-10cm)
kg-1 dw
5Sediment
distribution
winter - temp.
summer –
phosphate
to 500
1 - 612
to 400
Main
pollutants
8Trophic
level
Zn: 52-74;
Cd: 0.4-0.7;
Vistula river
Vistula
Lagoon
High trophy
Cu:12-16;
Pb:23-16
variously grained sands; silty sands;
sandy silts; clayey silts
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 SAMPLING
POINTS FOR
MACROBENTHOS 1996
- Biological valuation Gulf of Gdansk
DATA COLLECTION
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
MAP OF SAMPLING
POINTS FOR
MACROBENTHOS 2006
- Biological valuation Gulf of Gdansk
DATA COLLECTION
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
MAP OF SAMPLING
PATHS FOR
FISH 2006
- Biological valuation Gulf of Gdansk
DATA COLLECTION
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
MAP OF SAMPLING
AREAS FOR
BIRDS 2006
DISTRIBUTION
ON DATA
AVAILABILITY
- Biological valuation Gulf of Gdansk
ASSESSMENT QUESTIONS
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
SUBZONES DIVISION
GRID FOR MACROBENTHOS
250m x 250m
GRID FOR FISH/BIRDS
1000m x 1000m
-Biological valuation
Gulf 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?
-Biological valuation
Gulf of Gdansk ASSESSMENT QUESTIONS
FISH
– Is the abundance of ecologically significant species high in
the subarea?
Gadus morhua, Platichthys flesus, Zoarces viviparus
PREDATORS
-Biological valuation
Gulf 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?
-Biological valuation
Gulf of Gdansk ASSESSMENT QUESTIONS
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
Values Birds - Total
Values Birds - Total
Total Value of area
Birds and Fish
-Biological valuation
- Gulf of Gdansk LESSONS LEARNED
Data gathering/sharing
Assessment protocol
not easy to get detailed data on
density/productivity
changing environment causes changes in
structure of macrobenthic communities
no easy to get most recent data
subjectivity in choosing ecologically
significant species
potential “threat” for commercial use (EEA
– private consultancy companies)
productivity is not always a value
(macroalgae, fish)
invasive species / non indigenous species,
include / exclude
Habitat Directive
Birds Directive