Winter Steelhead/Coastal Rainbow Trout – Willamette SMU

Overview

Species Common Name Steelhead / Rainbow / Redband Trout
Species Scientific Name Oncorhynchus mykiss/Oncorhynchus mykiss irideus
SMU/ESU/DPS/Subspecies Winter Steelhead/Coastal Rainbow Trout - Willamette SMU (Upper Willamette River DPS)
Federal Listing Status Threatened
State Listing Status Sensitive
SMU/ESU/DPS/Subspecies Winter Steelhead/Coastal Rainbow Trout - Willamette SMU (Upper Willamette River DPS)

Ecoregions

West Cascades

The West Cascades ecoregion extends from east of the Cascade Mountains summit to the foothills of the Willamette, Umpqua, and Rogue Valleys, and spans the entire length of the state of Oregon. It is largely dominated by conifer forests, moving into alpine parklands and dwarf shrubs at higher elevations.

Willamette Valley

The Willamette Valley ecoregion is bounded on the west by the Coast Range and on the east by the Cascade Range. This long mostly level alluvial plain has some scattered areas of low basalt, and contrasts with productive farmland and large urban areas. It has the fastest-growing human population in the state resulting in challenges due to land-use changes.

Special needs

Require streams with clean gravel, complex habitat, and cool temperatures for spawning and rearing. Require access for anadromous migration.

Limiting factors

Water quality. Alterations of hydrology and watershed function. Fish passage. Riparian condition. Marine survival.

Data gaps

Continue ongoing monitoring of populations and conservation effectiveness. Monitor ocean populations and distribution.

Conservation actions

Maintain or restore aquatic and riparian habitat. Continue ongoing restoration efforts involving landowners, tribes, and agency partners (NOAA, NMFS, ODFW, OWEB).