| Impact ID | 2325 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Neogobius melanostomus preyed on zebra mussels Dreissena polymorpha, leaving only large size classes in exposed places. |
| Reference | 20499 |
| Cost | |
| Location | Calumet Harbor, Lake Michigan |