| Impact ID | 6131 |
| Impact Type | Competition |
| Study Type | Experimental |
| Study Location | Field |
| Impact Description | A mechanism for competitive exclusion of Gammarus fasciatus by Echinogammarus ischnus is less clear and may be influenced by total or relative amphipod densities. |
| Reference | 14977 |
| Cost | |
| Location | Pelee, Lake Erie |