| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Bagmati | River (basin) | native | 40948 |
| Chao Phraya River | River (basin) | native | 26336 |
| Kali Gandaki | River (basin) | native | 40948 |
| Karnali | River (basin) | native | 12045 |
| Kosi | River (basin) | native | 40948 |
| Mekong | River (basin) | native | 26336 |
| Oriental | Zoogeographic realm | endemic | 4833 |
| Salween | River (basin) | native | 26336 |