Faxonius virilis
Faxonius virilis
(Virile Crayfish)
Native Transplant

Impact ID5235
Impact TypePredation/Herbivory
Study TypeAnecdotal
Study LocationField
Impact DescriptionThere is a concern that the presence of Faxonius virilis in the Snake River Drainage in Idaho can impact the populations of native freshwater mussel Margaritifera falcata and fishes Oncorhynchus clarkii bouvieri and Catostomus discobolus due to the crayfish's tendency to prey on bivalves and fish eggs.
Great Lakes RegionNo
LocationSnake River Drainage, Idaho, USA

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Citation information: U.S. Geological Survey. [2023]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/6/2023].

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