REFCOAST – TYPOLOGY, REFERENCE BWZee – A BIOLOGICAL VALUATION CONDITION AND CLASSIFICATION OF THE BELGIAN COASTAL WATERS MAP FOR THE BELGIAN CONTINENTAL SHELF Sofie Derous , Stefan Van Damme , Els Van Cleemput , Steven Degraer , Magda Vincx & Patrick Meire 1 2 1 3 1 2 Sofie Derous , Steven Degraer , Eric Stienen , Wouter Courtens , Els Verfaillie , Vera Van Lancker , Ine Moulaert , Hans Hillewaert , Edward Vanden Berghe , Jan Mees , Eckhart Kuijken , Rudy Declerck & Magda Vincx 1 1 5 4 5 7 6 4 6 6 7 4 1 BACKGROUND: BACKGROUND: Implementation EU Water Framework Directive Information on biological value marine environment lacking needed to develop spatial structure plan Coastal Waters: up to 1 NM Larger scale: entire Belgian Continental Shelf PHASE A TYPOLOGY: System A System B ≈ ~ physical characterisation ZONATION: large morphological units (sandbanks, gullies) Bathymetrical data Morphological Finetuning with - obligatory factors - optional factors - sedimentological - hydrodynamical - geological data different coastal water types ecologically relevant zones DEFINING REFERENCE CONDITIONS: PHASE B Macrobenthic data For each coastal water type reference condition ~ high ecological status Biological quality elements SPATIAL EXTRAPOLATION OF BIOLOGICAL DATA: ↔ Sediment characteristics: point data - mean grain size - silt content phytoplankton macroalgae and angiosperms benthos predictive predictive HABITAT HABITAT model model ! Problem: probably not existing for Belgium other countries PHASE C CLASSIFICATION: Seabirds data spatial Spatial inter-/extraInter-/extrapolation polation full coverage macrobenthic communities - seabird species distribution maps CLASSIFICATION: Existing classification schemes / indices e.g. benthos ≈ marine Biotic Index (Borja et al., 2000) ~ organic pollution stress Preliminary biological valuation map: macrobenthos/no spatial extrapolation Extend with physical disturbance Ecological Quality Ratio Classification of all types 1 Marine Biology Section Ghent University, Belgium 2 ECOBE, Biology Department University of Antwerp, Belgium Biological valuation map 3 Resource Analysis NV Antwerp, Belgium REFCOAST - Project Promotor: Prof. Dr. Patrick Meire (patrick.meire@ua.ac.be) 4 Institute of Nature Conservation Brussels, Belgium 5 Renard Centre of Marine Geology Ghent University, Belgium 6 Sea Fisheries Department Ostend, Belgium BWZee – Project Promotor: Prof. Dr. Magda Vincx (magda.vincx@ugent.be) Both projects are financially supported by the Belgian Federal Science Policy Office 7 Flanders Marine Institute Ostend, Belgium