| Impact ID | 6703 |
| Impact Type | Predation/Herbivory |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | The European smelt Osmerus eperlanus was accidentally introduced (in or before 1968) into the ecosystem of the Syamozero lake in Karelia (north-western Russia). The population of this species has reached a high density and caused serious changes in the structure and trophic relationships of the fish community of the Syamozero ecosystem. |
| Reference | 29573 |
| Cost | |
| Location | Syamozero Lake, Russia |