| Impact ID | 6328 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | It has been hypothesized that the discplacement of Gammarus fasciatus by Echinogammarus ischnusdisplacement is partially due to intraguild predation. |
| Reference | 13534 |
| Cost | |
| Location | Detroit RIver, Michigan, USA |