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Case Studies (332)
Eckernforde Bay, Germany
Main Contributors:
Other Contributors:
Summary
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- The Baltic Sea
Countries
- Germany
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Key References
-
Nittrouer C, Lopez G, Wright D, Bentley J, D'Andrea A, Friedrichs C, Craig N, Sommerfield C. 1998. Oceanographic processs and the preservation of sedimentary structure in Eckernförde Bay, Baltic Sea. Continental Shelf Research 18, 1689-1714.
Citation
Thau Lagoon, France
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Other Contributors:
Summary
Seasonal hypoxia in the Thau Lagoon has resulted in mass mortality and reduced shellfish production. The Thau Lagoon is an important oyster and mussel production site. Being a shallow, almost closed lagoon, the water residence time is 200 days on average.
Type of regime shift
Ecosystem type
- Marine & coastal
- Freshwater lakes & rivers
Land uses
- Fisheries
- Tourism
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- South France
Countries
- France
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Key References
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Bacher C, Bioteau H, Chapelle A. 1995. Modelling the impact of a cultivated oyster population on the nitrogen dynamics: the Thau Lagoon case (France). Ophelia 42, 29-54.
Citation
Seine Estuary, France
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Other Contributors:
Summary
Seine river is affected by dense population and intense industrial and agricultural activity. The discharges have resulted in severe seasonal hypoxia.
Type of regime shift
Ecosystem type
- Marine & coastal
- Freshwater lakes & rivers
Land uses
- Fisheries
- Conservation
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- West Europe
Countries
- France
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Key References
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Billen G, Garnier J, Ficht A, Cun C. 2001. Modeling the response of water quality in the Seine river estuary to human activity in its watershed over the last 50 years. Estuaries 24, 977-993.
Citation
Loire Estuary, France
Main Contributors:
Other Contributors:
Summary
Type of regime shift
Ecosystem type
- Marine & coastal
- Freshwater lakes & rivers
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- West Europe
Countries
- France
Locate with Google Map
Key References
-
Marchand J. 1993. The influence of seasonal salinity and turbidity maximum variations on the nursery functions of the Loire estuary (France). Netherlands Journal of Aquatic Ecology 27, 427-436.
Citation
Etang de Berre, France
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Summary
Etang de Berre is a Mediterranean lagoon, which has received discharge of a hydroelectric plant since 1966. Inflow of fresh water has increased. Previously rich benthic life has been absent since 1972. Bottom waters, which used to be saturated with oxygen,are now anoxic below 5m depth, and strong salinity stratification has been established. In the southern lagoon there are marine water inflows.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- South Europe
Countries
- France
Locate with Google Map
Key References
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Rossignol-Strick M. 1985. A marine anoxic event on the Brittany Coast, July 1982. Journal of Coastal Research 1, 11-20
Citation
Neva Bay, Russia
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Other Contributors:
Summary
Neva Bay is an eutrophic area. Decomposition of macroalgae causes seasonal (late July - August) hypoxic and anoxic conditions in the coastal zone of the Neva estuary. Hypoxia and anoxia have changed the structure and dynamics of invertebrate communities according to the species' degree of adaptability.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- West Russia
Countries
- Russia
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Key References
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Berezina NA, Golubkov SM. 2008. Responses of coastal zoobenthos to stress induced by drifting algae in the Neva estuary. US/EU-Baltic International Symposium, 2008 IEEE/OES 1, 27-29
Citation
Inre Verkviken, Finland
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Other Contributors:
Summary
Inre Verkviken in Åland is a 20m deep, stagnant brackish inlet with seasonal hypoxia. Water below 10-15m becomes anoxic with year to year variation in late summers.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- North Europe
Countries
- Finland
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Key References
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Lindholm T. 1981. On the ecology of Mesodinium rubrum(Lohman)(Ciliata) in a stagnant brackish basin on Aland, SW Finland. Kieler Meeresforsch. 5, 117-123.
Citation
Archipelago Sea, Finland
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Other Contributors:
Summary
Seasonal hypoxia in theArchipelago Sea is caused by coastal eutrophication, which has been the greatest threat to the Archipelago ecosystem since the 1970s. Hypoxia has caused changes in species composition.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- North Europe
Countries
- Finland
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Key References
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Bonsdorff E, Blomqvist EM, Mattila J, Norkko A. 1997. Coastal eutrophication: causes, consequences and perspectives in the archipelago areas of the Northern Baltic Sea. Estuarine, Coastal and Shelf Science 44, 63-72.
Citation
Åland Archipelago, Finland
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Other Contributors:
Summary
Åland archipelago is an eutrophic area receiving nutrient inputs from numerous sources. Algae has increased in the area since the early 1990s. Hypoxia and anoxia occur frequently and have caused benthic mortality. Fish have decreased in abundance, biomass and diversity during the occurrence of algal mats.
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
- North Europe
Countries
- Finland
Locate with Google Map
Key References
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Bonsdorff E, Blomqvist EM, Mattila J, Norkko A. 1997. Coastal eutrophication: causes, consequences and perspectives in the archipelago areas of the Northern Baltic Sea. Estuarine, Coastal and Shelf Science 44, 63-72.
Citation
Thames Estuary, UK
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Other Contributors:
Summary
Seasonal hypoxia in the Thames estuary was first recorded in the 1920s. Compared to the 1930-1970s, the hypoxic conditions have now improved due to nutrientmanagement.
Type of regime shift
Ecosystem type
- Freshwater lakes & rivers
Land uses
- Fisheries
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- Europe
Region
- Southern England
Countries
- United Kingdom
Locate with Google Map
Key References
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Andrews MJ, Rickard DG. 1980. Rehabilition of the inner Thames estuary. Marine Pollution Bulletin 11, 327-332.
