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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)