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Salmon Evolutionarily Significant Units (ESUs) - West Coast of USA


Original Data Basin Creation Date
2011-06-20 10:01:36
Original Data Basin Modified Date
2011-06-20 10:17:41


This dataset includes the boundaries evolutionarily significant units (ESUs) of salmon on the West Coast of the United States of America. An evolutionarily significant unit, or ESU, of Pacific salmon is considered to be a "distinct population segment" and thus a "species" under the Endangered Species Act. Chinook salmon, Chum salmon, Coho salmon, Pink salmon, Sockeye salmon, and steelhead are all included in the dataset. ESU boundaries were compiled by the GIS group at the Bonneville Power Administration from various sources based on written descriptions in NOAA Fisheries Service status reviews (available upon request) and mapping provided by the Fisheries Service. Initial boundaries were derived from USGS 1:250,000 scale hydrological [...]


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Data source
Steve Stone, NOAA National Marine Fisheries Service, Northwest Regional Office
Harvested on Fri May 23 09:39:03 MDT 2014 from Data Basin Service

Additional Information


Type Scheme Key
UniqueKey Data Basin da9e3dec22aa437da8859fa7a7b26d34

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