| Impact ID | 2339 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Laboratory |
| Impact Description | Mottled sculpins (Cottus bairdi) have been almost totally extirpated from the study area due to Neogobius melanostomus. |
| Reference | 13824 |
| Great Lakes Region | Yes |
| Cost | |
| Location | |
