| Impact ID | 8363 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Fishhook flea (Cercopagis pengoi) competes with other planktivores of the Great Lakes, including alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax). |
| Reference | 13830 |
| Cost | |
| Location | Great Lakes, USA |