| Impact ID | 5234 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | In field sampling for crayfishes in reaches of the Snake River Drainage, no native crayfish Pacifastacus gambelii were found, and it is possible this is due to the presence of the nonnative Faxonius virilis. |
| Reference | 38029 |
| Great Lakes Region | No |
| Cost | |
| Location | Snake River Drainage, Idaho, USA |
