Industrial and agricultural pollution and toxic contamination, dams that block fish migration and access to spawning habitat—the decline of salmon, steelhead, sturgeon, and lamprey in the Columbia River is has many causes. To restore the river and the life that depends upon it, the Yakama Nation Fisheries is employing many and varied strategies, simultaneously. In some areas, habitat recovery is the key; in others, supplementation of salmon runs may need to be the driver.
Agency Creek enters Simcoe Creek at river mile 9.5, and drains a 23-square-mile watershed. Middle Columbia River steelhead use the creek for spawning and rearing.
The Yakama Nation is a federally recognized Tribe, pursuant to the Treaty of 1855 (12 Stat. 951), with authority to manage, protect and restore treaty resources throughout the Pacific Northwest.
The Twisp River Cattle Management Project provides riparian protection for Upper Columbia Steelhead in the Twisp River Watershed. The project was done on federal lands in partnership with the United States Forest Service (USFS).
Yakama Nation Fisheries (YNF) has been exploring sturgeon culture requirements by rearing small numbers of white sturgeon in tribal hatchery facilities since the 1990s. Fish were obtained from various sources, including the private Pelfrey sturge
By the end of the 20th century, indigenous natural coho salmon no longer occupied the mid- and upper-Columbia river basins. Columbia River coho salmon populations were decimated in the early 1900s.