Dr Ranjita Bania & Monoj Gogoi Assam is endowed with rich inland water resources in the form of ponds, beels, streams, lakes, reservoirs, natural wetlands and gurgling rivers. No doubt, river provides food and habitat for a diversity of life, ranging from a tiny freshwater fishes to the giant human beings. Specially in Assam, river becomes the lifeline for the communities residing on the bank particularly for the fisher. At the same time it brings gloom for human life too. Flood damages not only the property but also the agricultural crops of the victims. Historically, riverine flooding was considered to be a nuisance. Flooding was thought to negatively impact flora and fauna, and be potentially hazardous to humans. Recent studies, however, have demonstrated that flood is a specific characteristic of a riverine ecosystem Further, a regular annual flood is of particular advantage to aquatic systems along large floodplain rivers. Aquatic fauna, in general, are adapted to ...