| Impact ID | 2323 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Several native benthic-feeding fish such as perch (Perca spp.), sculpin (Cottus spp.), and darter (Etheostoma spp.) have shown a decline in numbers since the invasion of the Neogobius melanostomus due to prey resource competition. |
| Reference | 27072 |
| Great Lakes Region | No |
| Cost | |
| Location | |
