Abstract

• A total of 24 macroinvertebrate species, 24 genera belonging to 20 families, ten orders and three phyla were also collected and identified in four study sites of upstream and downstream of Min Ye Dam, Zawgi River Segment during the study period from August to December 2019. During the study period, the highest number of species composition was observed in Hemiptera (25.00%), followed by Mesogastropoda (16.66%), Coleoptera (16.66%), Odonata (12.50%), Araneae (8.33%), Haplotaxida, Veneroida, Decapoda, Ephemeroptera and Diptera (4.17%) respectively. In the present study, macroinvertebrates fauna was the highest at upstream of dam (site I and II) and the lowest at downstream of dam (site III and IV). In upstream, tall grasses predominated and the bed composed of silt. The downstream was found washing and bathing, activities of human and sand and gravels occupied the bed of stream. The macroinvertebrates fauna were higher in upstream than downstream of Min Ye Dam from Zawgi River, and is allocated to the habitat compatibility.