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==Acoustic kelp bed mapping in shallow rocky coasts - case study Helgoland==
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[[Image:Kelp_bed_mapping_1.jpg|thumb|right|'''Figure 1''' Aspect of the kelp forest off Helgoland. The main structuring species is the brown alga ''Laminaria hyperborea'' which grows to a length of approx. 1-2 m and provides shelter and substrate for many other species. Foto: C. Wanke, Biologische Anstalt Helgoland.]]
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'''Compendium for Coast and Sea - creating a marine science-policy interface'''
 
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Kelp beds are named after their habitat structuring organisms which are perennial brown macroalgae of several metres length, living submersed in the light penetrated zone of temperate and polar rocky shores (Fig. 1). Kelps provide substrate, food and protection for hundreds of different marine fishes, invertebrates, or other macroalgal species. A change or loss will have drastic consequences for coastal ecosystems.
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The Compendium for Coast and Sea is an integrated knowledge document about the socio-economic, environmental and institutional aspects of the coast and sea in Flanders and Belgium. As such, it constitutes a one-stop shop for data and information from the Flemish and Belgian marine and maritime research community and experts. The Compendium for Coast and Sea is an initiative of the Flanders Marine Institute (VLIZ) and was developed in close collaboration with experts from the research community, government, industry and civil society organisations. The first version of the Compendium was launched in 2013, a second edition was presented in 2015.
 
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In recent years worldwide reports of changing kelp beds have been published (Japan: Kirihara et al., 2006<ref name="K">Kirihara, S., Nakamura, T., Kon, N., Fujita, D. & Notoya, M. (2006). Recent fluctuations in distribution and biomass of cold and warm temperate species of Laminarialean algae at Cape Ohma, northern Honshu, Japan. J Applied Phycol., 18, 521-527.</ref>, Norway: Moy et al., 2003<ref name="M">Moy, F., Aure, J., Dahl, E., Green, N., Johnsen, T.M., Lømsland, E.R., Magnusson, J., Omli, L., Olsgaard, F., Oug, E., Pedersen, A., Rygg, B. & Walday, M.(2003). Landtidsovervåking av miljøkvaliteten i kystområdene av Norge. Årsrapport for 2002, 1-69.</ref>, France: Cosson, 1999<ref name="C">Cosson, J. (1999). Sur la disparition progressive de ''Laminaria digitata'' sur les côtes du Calvados (France). Cryptogamie Algol, 20, 35-42.</ref>, Australia: Australian Marine Conservation Society [http://weblink www.amcs.org.au/]). In Europe, including Helgoland (Gehling & Bartsch, submitted<ref name="GB">Gehling, C. & Bartsch, I.(submitted). Changes in depth distribution and biomass of sublittoral seaweeds at Helgoland (North Sea) between 1970 and 2005. Submitted to Climate Research.
 
</ref>), there is evidence of a biomass decrease and/or change in depth distribution of some species. As the marine protected area off Helgoland is the only rocky area within the southern North Sea, this habitat is extremely important. Spatial information on the extent of the prevailing kelp beds is urgently needed as a baseline from which to judge future changes. This led to the current case study.
 

Latest revision as of 14:52, 8 April 2016

Compendiumcoastandsea.jpg

Compendium for Coast and Sea - creating a marine science-policy interface


The Compendium for Coast and Sea is an integrated knowledge document about the socio-economic, environmental and institutional aspects of the coast and sea in Flanders and Belgium. As such, it constitutes a one-stop shop for data and information from the Flemish and Belgian marine and maritime research community and experts. The Compendium for Coast and Sea is an initiative of the Flanders Marine Institute (VLIZ) and was developed in close collaboration with experts from the research community, government, industry and civil society organisations. The first version of the Compendium was launched in 2013, a second edition was presented in 2015.