| Impact ID | 3645 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | In the years following the arrival in 2011 of N. melanostomus in the River Meuse, a rapid decline
in native C. perifretum average density from twenty to one individual per 100 m2 was observed, most likely due to predation and competition for
shelter and/or food. |
| Reference | 34243 |
| Great Lakes Region | No |
| Cost | |
| Location | River Meuse |
