Chinook Index Page

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 8/15/11 (76FR50447)	Designated 6/16/93 (58FR33212)
Upper Columbia River Spring-run	Endangered 8/15/11 (76FR50448)	Designated 9/2/05 (70FR52630)
Snake River Spring/Summer-run	Threatened 8/15/11 (76FR50448)	Designated 10/25/99 (64FR57399)
Snake River Fall-run	Threatened 8/15/11 (76FR50448)	Designated 12/28/93 (58FR68543)
Central Valley Spring-run	Threatened 8/15/11 (76FR50447)	Designated 9/2/05 (70 FR 52488)
California Coastal	Threatened 8/15/11 (76FR50447)	Designated 9/2/05 (70FR52488)
Puget Sound	Threatened 8/15/11 (76FR50448)	Designated 9/2/05 (70FR52630)
Lower Columbia River	Threatened 8/15/11 (76FR50448)	Designated 9/2/05 (70FR52630)
Upper Willamette River	Threatened 8/15/11 (76FR50448)	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