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

Absent

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