| Impact ID | 6704 |
| Impact Type | Disease/Parasite/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | European smelt Osmerus eperlanus introduced the microsporidia Glugea hertwigi to the Syamozero lake ecosystem in Russia. This parasite led to a mass die off of fish, changes in smelt population structure, and reduced total fish catch. |
| Reference | 29573 |
| Cost | |
| Location | Syamozero Lake, Russia |