Regional Status

Bull trout are listed as threatened under the federal Endangered Species Act, but populations across the species’ range vary in terms of their at risk status. The US Fish and Wildlife Service (USFWS) conducted a five year review of bull trout risk that was completed in April 2008.  In the 2008 review, the USFWS ranked 72% of the core areas where bull populations occur  in the United States as at “risk “or “high risk.”  In the state of Washington 60% (15 of 25) core areas were so ranked. 

The Chester Morse Lake population was ranked at “potential risk” in the 2008 assessment. This population is relatively unique because it has been physically (and genetically) isolated from populations in other basins for thousands of years by a natural fish passage barrier downstream of the lake  However, protection from fishing and other recreational impacts within a closed watershed helps to reduce the overall risk to the Chester Morse Lake adfluvial bull trout population compared to most others. 

View the USFWS 2008 five-year review of bull trout population status.