| Fish’ species | Codification |
| Protopterus annectens | Pa |
| Auchenoglanis occidentalis | Ao |
| Mormyrus rume | Mr |
| Distichodus mossambicus | Dm |
| Mormyrus deliciosus | Md |
| Labeo coubie | Lc |
| Oreochromis mossambicus | Om |
| Barbus occidentalis | Bo |
| Hydrocynus forskalli | Hf |
| Malapterurus electricus | Me |
| Clarotes laticeps | Cl |
| Districhodus rostratus | Dr |
| Clarias gariecilus | Cg |
| Lutjanu ssp | Ls |
| Synodontis nigrita | Sn |
| Gnatonemus tamandua | Gt |
| Polydactylus quadrifilis | Pq |
| Channa obscuris | Co |
| Cyprinus carpio | Cc |
| Hydrocynus goliath | Hg |