| Impact ID | 8371 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Surveys in the following year indicated that the fishhook waterflea (Cercopagis pengoi) was found to account for as much as 73% of crustacean zooplanktonic biomass in the lake. |
| Reference | 24542 |
| Cost | |
| Location | Lake Ontario, USA |