| Rivers | Width (m) | Simuliid species | Species density | Substratum | Substrates | Algae growth |
| Mada- Hills | 11.5 | S. damnosum | 3903 | Rubble | both dry and wet leaves, roots, rock | Absent |
| Mada | 443.8 | S. alcoki | 1358 | Rubble | stones, grasses, sticks and stems | |
|
|
| S. damnosum | 6849 |
|
|
|
| Richa | 4.6 | S. ruficorne | 3804 | Rubble | both dry and wet leaves, grasses | Absent |
|
|
| S. damnosum | 5963 |
|
|
|
| Mada-Station | 476 | S. adersi | 7289 | Rubble | both dry and wet leaves, roots, rock surfaces, stones, grasses, sticks | Absent |
|
|
| S. damnosum | 21,689 |
|
|
|
| Wewe | 15.7 | S. damnosum | 2848 | Rubble | both dry and wet leaves, grasses | Absent |
| Kwase | 13.2 | S. damnosum | 3054 | Rubble | both dry and wet leaves, roots, grasses both dry, sticks | Absent |
| Ubbe | 12.6 | S. damnosum | 5321 | Rubble | Absent | |
| Lambaga | 7.3 | S. damnosum | 2129 | Rubble | Absent | |
|
|
| S. adersi | 887 |
| both dry and wet leaves, both dry and wet leaves, grasses, sticks, stems |
|
| Gada I | 10.5 | S. damnosum | 4009 | Rubble | Absent | |
| Gada II | 8.6 | S. damnosum | 2146 | Rubble | Absent | |
| Gada III | 24.6 | S. damnosum | 1254 | Rubble | Absent | |
| Kuwa | 7.9 | S. ruficorne | 498 | Sand | dry and wet leaves | Absent |
|
|
| S. schoutedeni | 331 |
|
|
|
| Toto | 10.5 | S. cervicornutum | 1360 | Sand | dry bamboo leaves, wet and dry grasses | Absent |
| Nyangi | 56 | S. damnosum | 5748 | Rubble | both dry and wet leaves, roots, rock surfaces, stones, grasses, sticks and stems | Absent |
| Gudun-Karya | 7.6 | S. damnosum | 4025 | Rubble | Absent | |
| Nakuse | 6.4 | S. damnosum | 1381 | Rubble | Absent | |
| Gadabuke | 13.5 | S. adersi | 1276 | Rubble | leaves and grasses | Absent |
| Areba | 13.9 | S. damnosum | 3854 | Rubble | both dry and wet leaves | Absent |
|
|
| S. adersi | 2115 |
|
|
|
| Angwan-Kwara | 3.2 | S. damnosum | 2153 | Rubble | dry and wet grasses, stones | Present |
| NSUK | 1.4 | S. damnosum | 29,655 | Mud | dry and wet grasses and sticks | Absent |
| Antau | 21 | S. damnosum | 329 | Sand | dry and wet grasses and sticks | present |
| Mile-5 | 226 | S. damnosum | 2744 | Rubble | Both dry and wet leaves, roots, rock surfaces, stones, grasses and stems both dry and wet leaves, | Absent |
|
|
| S. adersi | 5193 |
|
| |
| Jarmai | 3.7 | S. damnosum | 1400 | Rubble | Absent | |
| Ando | 48 | S. adersi | 49434 | Rubble | Absent | |
| Bakin-Anini | 12.2 | S. damnosum | 11,325 | Sand | dry and wet grasses and sticks | Absent |
| Kampani | 9.6 | S. ruficorne | 648 | Sand | dry and wet grasses | Absent |
| Mandara | 12.3 | S. damnosum | 214 | Sand | dry and wet grasses and sticks | Absent |
| Dam-outlet | 17.8 | S. damnosum | 320 | Rubble | stones, dry and wet grasses and sticks | Absent |
| Prepu | 2.3 | S. damnosum | 850 | Sand | Stems, dry leaves | Present |
|
|
| S. adersi | 431 |
|
|
|
| Wange | 8.3 | S. adersi | 392 | Sand | dry and wet grasses and sticks | Present |
| Kilima | 4.7 | S. damnosum | 283 | Sand | dry and wet grasses and sticks | Present |
| Obi | 3.5 | S. ruficorne | 58 | Mud | dry and wet grasses and sticks | Absent |