Snake River Spring/Summer-run Chinook

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

ESU Definition: This evolutionarily significant unit, or ESU, includes naturally spawned spring/summer-run Chinook salmon originating from the mainstem Snake River and the Tucannon River, Grande Ronde River, Imnaha River, and Salmon River subbasins. It also includes spring/summer-run Chinook salmon from 11 artificial propagation programs:

• Tucannon River Program
• Lostine River Program
• Catherine Creek Program
• Lookingglass Hatchery Program
• Upper Grande Ronde Program
• Imnaha River Program
• Big Sheep Creek Program
• McCall Hatchery Program
• Johnson Creek Artificial Propagation Enhancement Program
• Pahsimeroi Hatchery Program
• Sawtooth Hatchery Program

Current Population Trends:

• Salmon Population Trend Summaries
• Salmon Population Summary Database
• 5-Year Salmon Status Review 1.6MB

Critical Habitat: Designated Oct. 25, 1999 41kb

Protective Regulations: Issued June 28, 2005 295kb

Chinook Salmon Reviews

Chinook Salmon Federal Register Notices

Chinook Salmon Maps & GIS Data