Upper Willamette River Chinook

ESA Listing Status: Threatened on June 28, 2005 pdf format 295kb ; updated April 14, 2014 pdf format 503kb

ESU Definition: This evolutionarily significant unit, or ESU, includes naturally spawned spring-run Chinook salmon originating from the Clackamas River and from the Willamette River and its tributaries above Willamette Falls. Also, spring-run Chinook salmon from six artificial propagation programs:

Current Population Trends:

Critical Habitat: Designated Sept. 2, 2005 pdf format 936kb

Protective Regulations: Issued June 28, 2005 pdf format 295kb

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