| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Bagmati | River (basin) | native | 40948 |
| Brahmaputra | River (basin) | native | 32617 |
| Ganges | River (basin) | native | 27732 |
| Irrawaddy | River (basin) | native | 27732 |
| Kali Gandaki | River (basin) | native | 6351 |
| Karnali | River (basin) | native | 40948 |
| Kosi | River (basin) | native | 40948 |
| Mekong | River (basin) | native | 26563 |
| Oriental | Zoogeographic realm | native | 4833 |
| Palearctic | Zoogeographic realm | native | 32617 |
| Salween | River (basin) | native | 27732 |