| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Amur | River (basin) | native | 26334 |
| Caspian Sea | Lake | native | 39702 |
| Danube | River (basin) | native | 50154 |
| Dnieper | River (basin) | native | 50154 |
| Don | River (basin) | native | 50154 |
| Elbe River | River (basin) | native | 54732 |
| Khanka Lake | Lake | native | 50154 |
| Nearctic | Zoogeographic realm | introduced | 1739 |
| Oder | River (basin) | native | 54732 |
| Palearctic | Zoogeographic realm | endemic | 26334 |
| Sakhalin Island | River (basin) | native | 58299 |
| South (Yuzhnyi) Bug | River (basin) | native | 50154 |