| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Chiloango | River (basin) | native | 120641 |
| Congo | River (basin) | native | 72448 |
| Ethiopian | Zoogeographic realm | endemic | 4999 |
| Kouilou-Niari | River (basin) | native | 72448 |
| Loémé | River (basin) | native | 72448 |
| Mai-Ndombe | Lake | questionable | 55074 |
| Marine Lower Congo | River (basin) | native | 55074 |
| Ogowe | River (basin) | native | 41581 |