Upper Columbia River Spring-run Chinook

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

ESU Definition: This evolutionarily significant unit, or ESU, includes naturally spawned spring-run Chinook salmon originating from Columbia River tributaries upstream of the Rock Island Dam and downstream of Chief Joseph Dam (excluding the Okanogan River subbasin). Also, spring-run Chinook salmon from six artificial propagation programs:

 Current Population Trends:

Critical Habitat: Designated Sept. 2, 2005 621kb

Protective Regulations: Issued under ESA Section 9 15kb

Reintroduction Effort: Experimental Population Designation

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