| J | F | M | A | M | J | J | A | S | O | N | D | Country | Locality |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 111 | 111 | Nigeria | Cross River (Jan 2004-Dec 2006) | ||||||||||
| 111 | 111 | 111 | 111 | Ethiopia | Lake Awassa | ||||||||
| 111 | 111 | 111 | 111 | Malawi | Lake Chilwa | ||||||||
| 111 | 111 | 111 | 111 | 111 | 111 | Egypt | Lake Manzala | ||||||
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | Lake Victoria | |
| 0 | 1 | 1 | 1 | 18 | 8 | 10 | 6 | 2 | 0 | 0 | 2 | Turkey | River Asi (1996-1998) |
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | 111 | Kenya | Sondu-Miriu River, Lake Victoria |
| 111 | 111 | 111 | 111 | Burkina Faso | Tapoa and small reservoirs |