| Impact ID | 2363 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The Neogobius melanostomus is credited for several regional extirpations of the Mottled Sculpin (Cottus bairdi) and the Johnny Darter (Etheostoma nigrum). |
| Reference | 32325 |
| Great Lakes Region | Yes |
| Cost | |
| Location | |
