| Impact ID | 1896 |
| Impact Type | Habitat Alteration |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Anecdotal observations attribute the introduction of F. rusticus to the declines in macrophytes in much of northern Wisconsin lakes, which is thought to have had a trophic cascade amoung the food web, in which now fish populations are reduced. |
| Reference | 25542 |
| Cost | |
| Location | |