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Fish › Salmon & steelhead
Oncorhynchus kisutch
A hard-running ocean salmon with a brief, closely watched Idaho return in the Clearwater and Snake.
Size range
28–42 in
Size range
Typical adult length in the waters we cover.
Water temperature
Coldwater
Water temperature
Preferred thermal regime for this species.
Origin
Native
Origin
Stocking and native history where this species is found.
Coho salmon are native, anadromous coldwater salmon of the Clearwater and Snake basins. Dams and habitat loss wiped out Idaho’s run, which was declared extinct in 1986; the Nez Perce Tribe began reintroducing coho to the Clearwater in the 1990s, and those returns now support limited sport seasons in some years.
Also known as: silver salmon
Spawning Male
PrimaryNot yet linked to waters
This species has not been linked to a river or lake in our catalog yet.
Episode 129 · Dec 19, 2019
Idaho coho seasons are limited and can change in season. IDFG lists open coho fisheries in parts of the Snake, Clearwater, North Fork Clearwater, South Fork Clearwater, and Middle Fork Clearwater, and specifically warns anglers to know the difference between coho, Chinook, and steelhead where runs overlap.
Regulations vary by water. Check current Idaho Fish and Game rules before fishing.
Status: Native to Idaho (reintroduced)
G5 (Secure) · ESA: Not listed · Idaho: SNARuns between freshwater and the ocean.
Browse species profiles with habitat, diet, tactics, and linked waters across the state.