Gotland Basin, the Baltic Sea
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia in the Gotland Basin was first recorded in the 1960s. It has caused benthic mortality and hypoxia areas are avoided by fish. Low dissolved oxygen content creates poor recruitment conditions for cod: mortality and low hatching of cod eggs together with reduced cod prey have been observed. Benthos recolonize the affected areas after bottom water renewal. Gotland Deep in the eastern Gotland Basin is anoxic.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
Spatial scale of the case study
- Sub-continental/regional (e.g. southern Africa, Amazon basin)
Continent or Ocean
- Europe
Region
- The Baltic Sea
Countries
- Sweden
- Estonia
- Latvia
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Key References
-
Laine A, Sandler H, Andersin A-B, Stigzelius J. 1997. Long-term changes of macrozoobenthos in the Eastern Gotland Basin and the Gulf of Finland (Baltic Sea) in relation to the hydrographical regime. Journal of Sea Research 38, 135-159.
Citation
Johanna Yletyinen.
Gotland Basin, the Baltic Sea.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-03-17 18:59:46 GMT.
