| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Bengo | River (basin) | native | 80290 |
| Chiloango | River (basin) | native | 80290 |
| Congo | River (basin) | native | 80290 |
| Cuanza | River (basin) | questionable | 120641 |
| Ethiopian | Zoogeographic realm | endemic | 5331 |
| Kouilou-Niari | River (basin) | native | 80290 |
| Loémé | River (basin) | native | 80290 |
| Mbini | River (basin) | native | 80290 |
| Ogowe | River (basin) | native | 80290 |