Documentation of deep communities in
the Skagerrak by ROV-techniques - fauna
and environmental threats
Results of conventional sampling have indicated change and deterioration of deep communities in the northern Skagerrak over the last decades. This project is aimed at assessing the present status of primarily deep hard-substrate biotopes along the Koster-Väderö trough and its continuation in neighbouring Norwegian waters, as well as in the open Skagerrak, as a basis for future comparison, and to identify possible causes for change, such as changed fishing practises, eutrophication and influence of toxic substances. The possible need for protective measures are evaluated, and biotopes of particular interest or value are mapped with GIS-techniques. Available data are used as a basis for predictive habitat modelling. The project is also aimed at the development of new photographic and other techniques for surveys and detailed studies of deep benthic communities, as an alternative to conventional destructive sampling techniques. Effects of otter trawling on benthic epifauna and resuspension of sediments are studied as well as the biology and distribution of the bank-forming deep-water coral Lophelia pertusa, as well as other deep-water corals in the area.
Tomas Lundälv, Research Engineer
Tel. + 46 (0)526 686 08
mobile+ 46 (0)730 868 667
EU-projects ACES (Atlantic Coral Ecosystem Studies), HERMES (Hotspot Ecosystem Research on the Margins of European Seas), ESONET (European Seafloor Observatory Network), Forum Skagerrak II; Swedish Environmental Protection Agency; Provincial Government of Västra Götaland; Swedish National Board of Fisheries; The Swedish Biodiversity Centre; Philipson's Research Fund; World Wide Fund for Nature (WWF).
The County Administrative Board of Västra Götaland; County Governor in Østfold; Inst. of Marine Research, Lysekil and Fishery Board of Sweden, Institute of Marine Research, Norway; NUIGALWAY, Ireland; University of Liverpool, U.K.; NIOZ, Netherlands; International University of Bremen, Germany.