Physico-Chemical Characteristics of Breeding Habitats and its Influence in Larval Population Density of Dengue Vector Aedes Aegypti in Thanjavur, Tamilnadu, India

The presence of suitable breeding habitats and the development of Aedes aegypti largely depend upon hydrology – driven ecological factors. The breeding habitats of A. aegypti were identified and characterized within the city corporation of Thanjavur, Taminadu, India, between January, 2016 and December, 2016. Breeding habitat such as waste bucket, over head tanks and discarded waste were identified and A.aegypti larvae were collected from the surveyed habitats. Physical parameters (pH, turbidity, conductivity, BOD, COD, dissolved oxygen, and total dissolved solids) were estimated. The relationship between the characteristics of breeding habitats and abundance of A.aegypti larva was investigated. pH was found to be positively related to larval abundance in all the three different habitats.