gis modelling for marine management poland habitat mapping oslo workshop 2007-05-29
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GIS modelling for marine
management
Poland habitat mapping Oslo Workshop
2007-05-29
Martin Isæus
08-16 10 11martin.isaeus@aquabiota.se
What drives the marine mapping in Sweden, Norway and the Baltic?
•EU
•National
•County management
•Industry – Marine Wind Power
BALANCE
Off-shore reefs survey
Nature reserve survey
WPD Finngrunden
The BALANCE project
19 partners & 10 countries 2½ year & € 4,7 mio.
Main activities:
Collation of marine environ-mental & anthropogenic data
Baltic seafloor mappingBiodiversity assessmentMarine spatial planning
BSR INTERREG IIIB region from space, Source: SeaWiFS Project, NASA/Goddard Space Flight Centre and ORBIMAGE
The BALANCE approach
Collate & analyse available geo-physical and hydrographical information within HELCOM region
Define and agree on an unified data format
Decide a common platform for data handling, processing and projection of marine landscape map, e.g. ArcGis, WGS84, UTM
Define standards for classifying Baltic marine landscapes
Validation & confidence schemeApplying an ecosystem-based
approach, not the one nation – one approach
Benthic marine landscapesBasic layers:
Seabed sediments
Photic depth
Bottom salinity
Secondary layers:TemperatureWave exposureIce coverCurrent velocity
Bathymetry
Word of caution!
Benthic marine landscapesFeatures 60 benthic landscapes
identifiedMost common is non-photic
mud at 7,5 – 11psu covering 58.640 km2 or 14,3% of total seabed
8 landscapes cover 371.000 km2 or 90,7% of total seabed
40 landscapes cover less than 1% of total seabed area
Coverage data for each EEZ as well as entire HELCOM region is available
Linking the physical characterisation to socio-economic exploitation
Illustrating the value of (transnational ?) marine landscape mapping
Could be linked to implementation of various EU obligations, e.g WFD or pMSD (?)
Could be linked to climatic change showing the consequences to marine environment
Annual variation in the Cod Reproductive Volume, DIFRES
Pelagic marine landscapes – an example
Habitat mapping
Norway
Denmark
Sweden
Lituania
Estonia
Finland
Nephrops in Skagerrak
Martin Isæus, AquaBiotaHans C. Nilsson, NIVAMattias sköld, Swedish
board of Fishery
SPI – Sediment Profile Images
Ecological status
Study area
Grids from multi-beam survey:Bathymetry (5 m res.)Hardness (4 classes)
SPI (22)
SPI + fauna (14)
SPI + new fauna sample (2)
New field data
Predictors importance for the model
Probalitity of Nephrops presence
Spearman Corr 0.659
Random SPI + Nephrops burrow shape + Trawling frequency
=> density plot and population estimate
Kernel density 2002-2006 mean yield per cage
Radius 5 km, 100m-grid.
Kjell Magnus NorderhaugMartin IsæusTrine BekkbyFrithjof Moy
Are Pedersen
Spatial predictions of Laminaria
hyperborea at the Norwegian
Skagerrak coast
Probability of
L. hyperborea
Monitoring data
vs
All available data
Off-shore bank survey
2003-06Natura 2000?
Benthic biologyMarine geologyHydrography
Nature values?
Utbredning av ”Död mans hand”
Alcyonium digitatum
Nature values
Fucus (+)
Chara (+)
Epithytes (-)
Filamentous (-)
Detritus (-)
Sulphuric bacteria (-)
EUNIS in the Baltic
Wind Power
FOTO: KNUT STRØM
WPD
Bathymetry (multi-beam)Back-scatter
Bentic biotaFishBirdsBatsSeals
Presence of blue mussel Mytilus and Horse mussel Modiolus
0 6,400 12,8003,200 Kilometers
4
Vågexponering0 - 590,000
590,001 - 708,224
Djup-129.49 - -22
-21.99 - 0
Stensnultra sannolikhet0 - 0.05
0.06 - 0.25
0.26 - 0.5
0.51 - 0.75
0.76 - 1
Presence of fish StensnultracvROC=0,843ROC=0,889cvCOR=0,63COR=0,682
Abundance of fish StensnultracvCOR=0,509COR=0,619
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