| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Cross | River (basin) | native | 57259 |
| Ethiopian | Zoogeographic realm | endemic | 3788 |
| Kienke | River (basin) | native | 31267 |
| Mono | River (basin) | native | 57259 |
| Niger | River (basin) | native | 57259 |
| Niger Delta | River (basin) | native | 57259 |
| Ogun | River (basin) | native | 57259 |
| Ouémé | River (basin) | native | 57259 |
| Rio del Rey | River (basin) | native | 81647 |
| Sanaga | River (basin) | native | 81647 |