IUCN threat status:

Least Concern (LC)


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Range Description

Columbia River drainage in northern Oregon, Idaho, Montana, and Washington; Nass (Pacific Slope) and Peace (Arctic basin) river systems in British Columbia; Vancouver Island and other islands off the coast of British Columbia; common, locally abundant (Lee et al. 1980, Wydoski and Whitney 1979, Page and Burr 1991). Lee et al. (1980) mentioned occurrence in Athabasca River, Alberta, but did not map this locality; Page and Burr (1991) did not indicate the occurrence of this species in Alberta.


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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