| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Benue | River (basin) | native | 81279 |
| Casamance | River (basin) | native | 81279 |
| Corubal | River (basin) | native | 81279 |
| Ethiopian | Zoogeographic realm | endemic | 2880 |
| Gambia | River (basin) | native | 81279 |
| Géba | River (basin) | native | 81279 |
| Lower Niger | River (basin) | native | 13331 |
| Mono | River (basin) | native | 28663 |
| Niger | River (basin) | native | 81279 |
| Niger Delta | River (basin) | native | 88941 |
| Senegal | River (basin) | native | 81279 |
| Upper Niger | River (basin) | native | 13331 |
| Volta | River (basin) | native | 81279 |