Diversity and abundance model according to habitat characteristics of filariasis vector, Mansonia spp. in Banyuasin, South Sumatera, Indonesia

Filariasis is an infectious disease caused by filariae worm transmitted by a mosquito as vectors. Mansonia is one of the genera of filariasis vectors. The high risk of filariasis transmission is the existence of habitat character which is qualified for Mansonia spp. One of filariasis endemic area is Banyuasin, South Sumatera, as much as 2.02% microfilaria rate. This study was conducted to estimate the number of vector abundance influenced by habitat characteristic. The data collection was from two villages: Sedang and Muara Sugih, from April 2017 – May 2018. Mosquitos were caught using aspirators and humans as baits. Ecological factors were the physical environment such as temperature measured by thermometer and humidity measured by sling hygrometer. Water parameter and geographic factors were analyzed. Abundance model of Mansonia spp described using regression test for multivariate analysis. Data analysis was performed and presented in form of frequency tables. The number of samples was 4.956 mosquitoes. There were six species such as Mansonia uniformis, Mansonia annulifera, Mansonia indiana, Mansonia dives, Mansonia bonneae, and Mansonia annulata. Sedang Village was dominated by Mansonia uniformis (41.25%) whereas, Muara Sugih Village was by Mansonia bonneae (45.66%). The ideal habitat characteristics for Mansonia spp were environmental conditions with high temperature and humidity, low water turbidity, low water temperature, low pH, TDS, and high TSS. The diversity and abundance of Mansonia spp as a potential vector of filariasis Brugia malayi in Banyuasin regency was closely related to environmental characteristics such as temperature, humidity, water parameters, and plant species.