Kattegat, Sweden & Denmark
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia was first recorded in 1981 when large areas of the Kattegat had widespread severe hypoxia. Seasonal or more or less permanent hypoxia has resulted in benthic mortality. Hypoxia dominates the south-eastern part but occurs occasionally everywhere. In the southeast (open Kattegat) hypoxia is caused by increased input of nutrients and stratification since 1980s with negative effects on benthic animals and commercial fish species in most of the years.
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
- Denmark
Locate with Google Map
Key References
-
Andresson L, Rydberg L. 1988. Trends in nutrient and oxygen conditions within the Kattegat: Effects on local nutrient supply. Estuarine, Coastal and Shelf Science 26, 559-579.
-
Conley J, Carstensen J, Ærterbjerg G, Christensen PB, Dalsgaard T, Hansen J, Josefsen A. 2007. Long-term changes and impacts of hypoxia in Danish coastal waters. Ecological Applications 17, 165-184.
-
Karlson K, Rosenberg R, Bonsdorff E. 2002. Temporal and spatial large-scale effects of eutrophication and oxygen deficiency on benthic fauna in Scandinavian and Baltic waters: A review. Oceanography and Marine Biology 40, 427-489.
Citation
Johanna Yletyinen.
Kattegat, Sweden & Denmark.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2011-12-19 16:39:34 GMT.
