| Impact ID | 9560 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | An observational study of smelt (Osmerus eperlanus) found Cyclops strenuus in the food bolus of all fish. Cyclops spp. were a significant part of the juvenile diet during periods of ice cover. |
| Reference | 37050 |
| Cost | |
| Location | Lake Syamozero, Baltic Sea Basin, South Karelia |