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Long-term changes and coastal eutrophication. Examples from the Aland Islands and the Archipelago Sea, northern Baltic Sea ArchiMer
Bonsdorff, E; Blomqvist, Em; Mattila, J; Norkko, A.
The coastal and archipelago waters of the northern Baltic Sea are influenced by increasing eutrophication (significantly increasing temporal trends in nutrient availability). Increased nutrient levels and pelagic primary production have led to decreased transparency in the water body, increased plankton biomass, and increased amounts of filamentous algae. Large-scale and long-term (15-30 years) comparisons have shown that zoobenthic communities have changed significantly (altered species diversity, increased total abundance and increased biomass). The stress in the ecosystem is also illustrated at the population level (Macoma balthica). An increasing trend is shown for a near-shore fish community, where the increase in biomass has been linear over the past...
Tipo: Text Palavras-chave: Baltic Sea; Eutrophication; Long-term changes; Nutrient; Zoobenthos.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00093/20402/18069.pdf
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