Message
Johanna
Tuesday, 13 December 2011 13:20
Cape Cod Bay, USA
Cape Cod Bay, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia first recorded in 1980s.
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
- North America|-|Atlantic Ocean
Region
- West coast of USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Cape Cod Bay, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2011-12-19 16:05:55 GMT.
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Case Studies
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Tuesday, 13 December 2011 13:15
Boston Harbor, USA
Boston Harbor, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia in Boston Harbor was first recorded in the 1980s. It has since improved due to nutrient management.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Urban
- Fisheries
- Conservation
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- North America
Region
- East coast of USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Boston Harbor, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-01-11 12:32:53 GMT.
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Tuesday, 13 December 2011 13:06
St. Leonard Creek, USA
St. Leonard Creek, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia first documented in the 1990s.
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
- North America
Region
- East coast of USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
St. Leonard Creek, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2013-02-21 14:10:35 GMT.
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Tuesday, 13 December 2011 12:56
Patuxent River, USA
Patuxent River, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Patuxent River hypoxia was first recorded in the 1930s but there are indications of hypoxia from the 1700s. Rise in anoxia in the 1970s has been linked to nutrient runoff and wet weather. Hypoxia has decreased in the 1990s and 2000s.
Hypoxia has caused mortality of benthos (annual recolonization) and mortality of fish early life stages.
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
- North America
Region
- West coast of USA
Countries
- United States
Locate with Google Map
Key References
Citation
Johanna Yletyinen.
Patuxent River, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-01-12 08:40:33 GMT.
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Tuesday, 13 December 2011 12:46
Choptank River, USA
Choptank River, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Periodic hypoxia occurs in June - September. It was first recorded in the 1980s.
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
- North America
Region
- East coast of USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Choptank River, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2013-02-21 14:14:18 GMT.
Published in
Case Studies
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Tuesday, 13 December 2011 12:03
Chester River, USA
Chester River, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia occurs in Chester River in June - August. It has caused mortality of benthos and fish mortality and avoidance. Hypoxic areas are annually recolonized by benthos. Dissolved oxygen content has declined in the 1990s and 2000s.
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
- North America
Region
- East Coast USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Chester River, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-01-12 10:35:02 GMT.
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Tuesday, 13 December 2011 11:02
Wells Inlet, USA
Wells Inlet, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Wells Inlet hypoxia has a daily cycle from supersaturated to hypoxic, and it was first recorded in the 1990s.
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
- North America
Region
- West coast of USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Wells Inlet, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-01-12 10:19:24 GMT.
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Case Studies
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Tuesday, 13 December 2011 10:51
Calcasieu Lake, USA
Calcasieu Lake, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia was recorded in the 1980s. Hypoci conditions have improved in the 1990s and 2000s.
Type of regime shift
Ecosystem type
- Freshwater lakes & rivers
Land uses
- Fisheries
- Conservation
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- North America
Region
- Southern USA
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Calcasieu Lake, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-01-11 12:49:50 GMT.
Published in
Case Studies
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Tuesday, 13 December 2011 10:37
Breton and Chandeleur Sounds, USA
Breton and Chandeleur Sounds, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Breton and Chandeleur Sounds were first recorded to be hypoxic in the 1990s. Neither of them is believed to have been hypoxic in the 1980s.
Type of regime shift
Ecosystem type
- Marine & coastal
Land uses
- Fisheries
- Conservation
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- North America
Region
- Gulf of Mexico
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Breton and Chandeleur Sounds, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-11-27 15:21:19 GMT.
Published in
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Monday, 12 December 2011 16:46
Atchafalaya and Vermillion Bays, USA
Atchafalaya and Vermillion Bays, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Hypoxia, which in these systems is significantly caused by stratification, was first recorded in 2000s.
Type of regime shift
Ecosystem type
- Freshwater lakes & rivers
Land uses
- Fisheries
- Conservation
Spatial scale of the case study
- Local/landscape (e.g. lake, catchment, community)
Continent or Ocean
- North America
Region
- Gulf of Mexico
Countries
- United States
Locate with Google Map
Key References
-
Committee on Environment and Natural Resources. 2010. Scientific Assessment of Hypoxia in U.S. Coastal Waters. Interagency Working Group on Harmful Algal Blooms, Hypoxia, and Human Health of the Joint Subcommittee on Ocean Science and Technology. Washington, DC.
Citation
Johanna Yletyinen.
Atchafalaya and Vermillion Bays, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2011-12-19 16:01:17 GMT.
Published in
Case Studies
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