| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Beaufort Sea | Sea/Bay/Gulf | native | 121105 |
| Caspian Sea | Lake | native | 39702 |
| Erqishi River | River (basin) | native | 41093 |
| Mackenzie | River (basin) | native | 5723 |
| Nearctic | Zoogeographic realm | native | 27547 |
| Onega River | River (basin) | native | 55804 |
| Palearctic | Zoogeographic realm | native | 5723 |
| Terek River | River (basin) | native | 59043 |
| Ural | River (basin) | native | 59043 |
| Volga | River (basin) | native | 58297 |
| Yukon | River (basin) | native | 27547 |