Abstract

• An investigation using macro-aquatic insects in water quality assessment was carried out at Taungthaman Lake, during July 2019 to June 2020. The specimen collection was conducted using D-framed net by drifting method. A total of 3196 individuals of 30 species, belonging to 29 genera, 21 families under nine orders were recorded. The water quality was assessed as fairly poor in the studied lake. The highest degradation of water quality (BI) was (7.34) examined at Site I in cold season, and the lowest degradation (BI) was (6.67) at Site II in rainy season. Nowadays, Taungthaman Lake is important to maintain the healthy water body because human invaded and utilized the land for settlement around the lake. The lake water was disturbed by the human activities. Thus, the water quality was degraded to unusable condition.