San Joaquin River, USA
Main Contributors:
Johanna Yletyinen
Other Contributors:
Summary
Oxygen depletion in the San Joaquin river was first documented in the 1960s. The first measured hypoxia occurred in 1972. Hypoxia in the San Joaquin river was caused by sewage discharge, nonpoint runoff and primary production. Stratification is weak. Hypoxia blocks salmon migration when dissolved oxygen levels in the river drop below 6mg/l.
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
- California
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.
San Joaquin River, USA.
In: Regime Shifts Database, www.regimeshifts.org.
Last revised 2012-01-12 09:16:04 GMT.