| Impact ID | 2327 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Two species found to have significant diet overlap with Neogobius melanostomus in 1994,Noturus stigmosus and Etheostoma caeruleum, showed a significant decline in relative abundance between 1994 and 2011. |
| Reference | 28227 |
| Cost | |
| Location | St. Clair River, Michigan |