| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Benue | River (basin) | native | 57128 |
| Comoé | River (basin) | native | 57128 |
| Cross | River (basin) | native | 13331 |
| Ethiopian | Zoogeographic realm | endemic | 272 |
| Kwa-Ibo | River (basin) | native | 57128 |
| Lower Niger | River (basin) | native | 57128 |
| Mono | River (basin) | native | 57128 |
| Niger | River (basin) | native | 57128 |
| Niger Delta | River (basin) | native | 57128 |
| Ogun | River (basin) | native | 57128 |
| Ouémé | River (basin) | questionable | 57128 |
| Volta | River (basin) | native | 57128 |