International Science Community Association International Research Journal of Biological Sciences 2278-3202 7 3 2018 03 10 Influence of physico-chemical characteristics of water in seasonal abundance of insects of Kapla Beel, Assam, India 1 8 EN Alakesh Barman 1 P.G. Department of Zoology, Bajali College, Barpeta-781325, India Binode Kr. Baruah 2 Department of Zoology, Cotton University, Guwahati-781001, India > Research Paper 2017 10 20 2018 03 10 During the entire study period total 46 species of insects were recorded from the Kapla Beel. Among these, the order Coleoptera comprised of greatest number with 20 species belongs to 5 families. Diptera with 3 genera belongs to two families, Hemiptera recorded with 13 species belongs to 7 families, Odonata with 8 species belongs to 3 families and Ephemeroptera with 2 genera belongs to 1 family. The study revealed that aquatic insects abundance show positive correlation with pH, Conductivity, Dissolved Oxygen, BOD, Total Alkalinity, calcium, Magnesium and water Hardness and negatively correlated with Water Temperature, Turbidity, COD, Sulphate and Free CO2 during the year 2010-2011 and the pattern was almost same in 2011-2012 except Calcium. The study on the abundance of insects showed that they were abundant mostly during post monsoon season as compared to other two seasons. Copyright@ International Science Community Association