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Bull Trout Trends and Abundance*

(DRAFT)

Upper Clark Fork River Recovery Subunit

Clark Fork Core Unit (Section 1)Rock Creek Core UnitBlackfoot Core UnitClearwater River and Clearwater Lake Chain Core UnitClark Fork River (Section 2) Core UnitWest Fork Bitterroot RiverBitterroot River Abundance: 1,150-4,750
Trend: Stable-Declining

In the Upper Clark Fork River Recovery Subunit, hydroelectric dams, legacy effects of past forestry and mining practices, grazing, transportation networks, residential development, and releases of non-native species have resulted in conditions that are limiting bull trout abundance and productivity.

















*The abundance and trend estimates represents summations of the information provided in the USFWS 5-Year Review. For a comprehensive review of the estimated abundance and trends, please refer to U.S. Fish and Wildlife Service. 2008. Bull Trout (Salvelinus confluentus) 5-Year Review: Summary and Evaluation. U.S. Fish and Wildlife Service. Portland, OR. 55 pp.

For a comprehensive review of the limiting factors affecting bull trout in this recovery unit, please refer to:
http://www.fws.gov/pacific/bulltrout/RP/Chapter_3%20Clark%20Fork.pdf

Adapted from:

U.S. Fish and Wildlife Service. 2002. Chapter 3, Clark Fork River Recovery Unit, Montana, Idaho, and Washington. 285 p. U.S. Fish and Wildlife Service. Bull Trout (Salvelinus confluentus) Draft Recovery Plan. Portland, OR.