| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Aliakmon | River (basin) | native | 59043 |
| Archar | River (basin) | native | 59043 |
| Danube | River (basin) | native | 59043 |
| Gallikos | River (basin) | native | 59043 |
| Krupaja | River (basin) | native | 59043 |
| Loudias | River (basin) | native | 59043 |
| Nera | River (basin) | native | 59043 |
| Palearctic | Zoogeographic realm | native | 59043 |
| Sava River | River (basin) | native | 59043 |
| Soca | River (basin) | native | 59043 |
| Vardar | River (basin) | native | 59043 |
| Vlasinsko | River (basin) | native | 59043 |