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Table 4 Numbers of mosquito larval habitats and their characteristics in Barakat and El-Kareiba, Gezira, Sudan, February – September, 2011

From: Characterisation of larval habitats, species composition and factors associated with the seasonal abundance of mosquito fauna in Gezira, Sudan

Characteristics

Barakat

El-Kareiba

 

Anopheles spp. (%)

Culex spp. (%)

Aedes spp. (%)

Anopheles spp. (%)

Culex spp. (%)

Aedes spp. (%)

Habitat location

 Indoor

337 (20.4)

244 (11.1)

0.0

0.0

0.0

0.0

 Outdoor

1 314 (79.6)

1 951 (88.9)

171 (100)

949 (100)

1 328 (100)

43 (100)

Presence of larvae

 Negative

0.0

0.0

0.0

0.0

0.0

0.0

 Positive

1 651 (100)

2 195 (100)

171 (100)

949 (100)

1 328 (100)

43 (100)

Shading

 No

1 098 (66.1)

1 807 (82.4)

111 (65.0)

949 (100)

328 (24.7)

27 (62.8)

 Yes

553 (33.5)

388 (17.7)

60 (35.1)

0.0

1 000 (75.3)

16 (37.2)

Water turbidity

 Non-turbid

1 048 (63.5)

1 567 (71.4)

129 (75.5)

624 (65.8)

1 251 (94.2)

 

 Low turbidity

529 (32.0)

623 (28.4)

20 (11.7)

276 (29.1)

77 (5.8)

27 (62.8)

 High turbidity

74 (4.5)

5 (0.2)

22 (12.9)

49 (5.0)

0.0

16 (37.0)

Grass presence

 Yes

1 283 (77.7)

1 592 (72.5)

76 (44.5)

444 (46.8)

423 (31.9)

3 (6.9)

 No

368 (22.3)

603 (27.5)

95 (55.6%)

405 (42.7)

1 085 (81.7)

40 (93.0)

Algae presence

 Yes

1 217 (73.7)

1 555 (70.9)

119 (69.7)

661 (69.65)

249 (18.8)

3 (5.0)

 No

434 (26.3)

640 (29.2)

52 (30.5)

288 (30.4)

1 079 (81.3)

40 (93.0)

Larval control

 Yes

16 (1.0)

24 (1.1)

3 (1.8)

0.0

0.0

0.0

 No

1 635 (99.0)

2 171 (98.9)

168 (98.3)

949 (100)

1 328 (100)

43 (100)