| Impact ID | 8369 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The fishhook waterflea (Cercopagis pengoi) is known to make up a portion of the adult alewife diet in Lakes Ontario, Erie, and Michigan, but this contribution does not appear significant relative to Bythotrephes longimanus, another nonindigenous spined cladoceran, when these species co-occur. |
| Reference | 24426 |
| Cost | |
| Location | Great Lakes, USA |