Eutrophication—The future marine coastal nuisance?

摘要: Abstract Increased inputs of nutrients to marine coastal areas over the last decades have created a basis for eutrophication waters surrounding Sweden. In combination with relatively low water exchange in these vertically stratified and almost non-tidal waters, local regional effects increased macro-algal biomass, decreased oxygen concentrations bottom leading mortalities benthic animals fish catches at times been observed. The were first noted Baltic, but are now obvious also Swedish Danish Kattegat Belt Sea. Similar symptoms recently recorded off North Sea coast. Other shallow shelf areas, where stratification occurs, can be regarded as potentially eutrophic risk areas.