Odonata richness in RAMSAR site, Deepor Beel, Assam

The study was conducted in the Deepor beel wetland for 18 months from January 2015 to mid june 2016. The Deepor beel is a RAMSAR site located (longitude 910 38 35 E and latitude 260 07 30 N) in the Kamrup district of Assam & is owned by State Fisheries Department. From the foregoing information it is apparent that odonates are boon for the environment. They act as a biological indicator of a healthy aquatic ecosystem and also act as a biocontrol agent as adult odonates preys on flies and mosquitoes which are parasite and pest of men and animal. During the present study 8 Anisopteran (Family: Libellulidae) and 3 Zygopteran (Family : Coenagrionidae ) species could be found in and around Deepor beel wetland site. Shurb land found to be most favourable habitat for odonates. The present findings showed that, the study area is biologically active to contain divergent species of odonate fauna. Detail environmental study is necessitated, so that, the habitat of odonates could be protected and conserved in situ against the increasing level of pollution as less number of divergent species recorded in the present study compared to previous survey.