| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Arges | River (basin) | native | 59043 |
| Beli Vit | River (basin) | native | 59043 |
| Danube | River (basin) | native | 59043 |
| Ialomita | River (basin) | native | 59043 |
| Iskar | River (basin) | native | 59043 |
| Jantra | River (basin) | native | 59043 |
| Kamchyia | River (basin) | native | 59043 |
| Mure? | River (basin) | native | 59043 |
| Olt | River (basin) | native | 59043 |
| Palearctic | Zoogeographic realm | native | 90058 |