NOAA's National Marine Fisheries Service - Northwest Region


Chinook Salmon
(Oncorhynchus tshawytscha)

chinmale



NOAA Fisheries has identified 17 evolutionarily significant units (ESUs) of Chinook salmon in Washington, Oregon, Idaho and California. Each ESU is treated as a separate species under the Endangered Species Act. Click the links below to get information about a specific ESU, its status, and other relevant information.

ESU

ESA Listing Status

ESA Critical Habitat

 Sacramento River Winter-run

Endangered
1/4/94 (59FR440)

Designated
6/16/93 (58FR33212)

 Upper Columbia River Spring-run

Endangered
6/28/05 (70FR37160)

Designated
9/2/05 (70FR52630)

 Snake River Spring/Summer-run

Threatened
6/28/05 (70FR37160)

Designated
10/25/99 (64FR57399)

 Snake River Fall-run

Threatened
6/28/05 (70FR37160)

Designated
12/28/93 (58FR68543)

 Central Valley Spring-run

Threatened
6/28/05 (70FR37160)

Designated
9/2/05 (70 FR 52488)

 California Coastal

Threatened
6/28/05 (70FR37160)

Designated
9/2/05 (70FR52488)

 Puget Sound

Threatened
6/28/05 (70FR37160)

Designated
9/2/05 (70FR52630)

 Lower Columbia River

Threatened
6/28/05 (70FR37160)

Designated
9/2/05 (70FR52630)

 Upper Willamette River

Threatened
6/28/05 (70FR37160)

Designated
9/2/05 (70FR52630)

 Central Valley Fall- and Late Fall-run

Species of Concern
4/15/04 (69FR19975)

NA

 Southern OR & Northern CA Coastal

Not Warranted

NA

 Upper Klamath & Trinity Rivers

Not Warranted

NA

 Oregon Coast

Not Warranted

NA

 Washington Coast

Not Warranted

NA

 Mid-Columbia River Spring-run

Not Warranted

NA

 Deschutes River Summer/Fall-run

Not Warranted

NA

 Upper Columbia River Summer/Fall-run

Not Warranted

NA

 

 ESU Maps

 Federal Register Notices


Salmon graphics on the Northwest Region ESA Salmon Web pages are used with permission from Nature Discovery,non-U.S.-gov't link Copyright © 1996.

   



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Page last updated: June 28, 2007

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