| Ecosysteem | Type | Status | Ref. |
|---|---|---|---|
| Danube | River (basin) | native | |
| Dnieper | River (basin) | native | 26334 |
| Don | River (basin) | native | 26334 |
| Elbe River | River (basin) | native | 38311 |
| Palearctic | Zoogeographic realm | endemic | 27368 |
| Rhine | River (basin) | native | 38311 |
| Ural | River (basin) | native | 26334 |
| Volga | River (basin) | native | 26334 |