| Impact ID | 7696 |
| Impact Type | Competition |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | F. rusticus have particularly aggressive behaviour, combined with relatively large body and chelae size, they often fight other crayfish, forcing them out of the desirable habitat |
| Reference | 42162 |
| Great Lakes Region | Yes |
| Cost | |
| Location | |
