ESA recovery plan for Lower Columbia River Coho salmon, Lower Columbia River Chinook salmon, Columbia River Chum salmon, and Lower Columbia River steelhead
Saved in:
Imprint: | [Seattle, Wash.] : National Marine Fisheries Service, Northwest Region, 2013. |
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Description: | 1 online resource (503 unnumbered pages) : illustrations (some color), color maps |
Language: | English |
Subject: | |
Format: | E-Resource U.S. Federal Government Document Book |
URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/11556133 |
Item Description: | "June 2013." "This is a plan for the recovery of Lower Columbia River Chinook salmon (Oncorhynchus tshawytscha), Lower Columbia River steelhead (O. mykiss), Lower Columbia River coho salmon (O. kisutch), and Columbia River chum salmon (O. keta), all of which spawn and rear in the lower Columbia River or its tributaries in Oregon and Washington. These salmon and steelhead were listed as threatened under the Endangered Species Act of 1973 (ESA) between 1998 and 2005. Each is considered an evolutionarily significant unit (ESU) or, for steelhead, a distinct population segment (DPS). An ESU or DPS is a group of Pacific salmon or steelhead that is discrete from other groups of the same species and that represents an important component of the evolutionary legacy of the species.1 Under the Endangered Species Act, each ESU or DPS is treated as a species. For convenience this recovery plan frequently uses the term "ESU" to refer to both the salmon ESUs and the steelhead DPS."--Executive summary (p. ES-1). |
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Physical Description: | 1 online resource (503 unnumbered pages) : illustrations (some color), color maps |
Bibliography: | Includes bibliographical references. |