University of Khartoum

Mosquito species Composition and Description of their Breeding Habitats in Kosti and Jabalain Towns, White Nile State, Sudan

Mosquito species Composition and Description of their Breeding Habitats in Kosti and Jabalain Towns, White Nile State, Sudan

Show full item record

Title: Mosquito species Composition and Description of their Breeding Habitats in Kosti and Jabalain Towns, White Nile State, Sudan
Author: Elmalih, Egbal Bashir Ibrahim
Abstract: This study was conducted in Kosti and Jabalain towns, White Nile State, Sudan, during August to December 2015, to determine species composition of mosquitoes in different breeding habitats. Data of water depth, surface area, temperature, turbidity, salinity and pH of water and presence of aquatic plants were recorded. Immature stages were reared to the adult stage and identified. Immature stages of mosquitoes were collected by the dipping method, from three residential areas in the two towns. Immature from the same habitats were reared to the adult stage for identification purposes. The results revealed that the immature stages were recorded in autumn with the highest mean (35.9±2.2) in Kosti, (31.8±2.3) in Jabalain, and in winter (38.4±2.3) in Kosti and (27.3±1.3) in Jabalain. The dominant adult species were Anopheles gambiae complex followed by Culex quinquefasciatus and Cx. univittatus. An. gambiae complex were higher in Jabalain (28.3±2.2) than in Kosti (10.7±1.1) while Cx. quinquefasciatus was higher in Kosti (8.4±101) than in Jabalain (0.7±0.3). Other species recorded in low numbers in a descending order were Cx. theileri, Cx. pipiens, An. pharoensis, An. rufipes, An. funestus, An. squamosus, Cx. duttoni, Aedes unilineatus and Ae. aegypti. The preferable breeding habitats for immature stages in Kosti were water of ponds (40.2±3.3), broken pipes (39.3±2.2) and streams (35.9±3.9) while in Jabalain were water of streams (50.8±16.6), ponds (33.5±2.2) and broken pipes (31.6±1.6). Other less preferable sites in descending order were manholes and clay pots. Aquatic plants had no significant effect on mean numbers of immature stages. Similarly, depth of water body has insignificant effect on number of immature stages. Numbers recovered from depth of (21-40 cm) and (11-20 cm) were with means of (40.2±3.9) and (35.0±2.5) in Kosti and Jabalain, respectively. It was found that the mean temperature of the water body from where large numbers were recovered ranged between 28-35ºC. Aquatic stages, also, preferred water with high turbidity that ranged between 451 and 650 ppm; they preferred salinity ranged between 100 and 400 ppm and pH ranging from 6.0 to 8.5. The study concluded that the most dominant species in Kosti and Jabalain were An. gambiae complex Cx. quinquefasciatus, and Cx. univittatus. It is also concluded that Anopheles and Culex species mostly breed in ponds, water of broken pipes and in turbid water, while aquatic plants had no effect. More studies are recommended to update ecology and behaviour of mosquito species in different areas of White Nile State.
URI: http://khartoumspace.uofk.edu/123456789/25209


Files in this item

Files Size Format View

This item appears in the following Collection(s)

Show full item record

Share

Search DSpace


Browse

My Account