The present paper reviews recent developments in methodology for valuing the role of wetlands in supporting economic activity. The study brings out several issues related to conservation and management of the Pong Dam wetland. For the protection of aquatic biodiversity of the wetland, integrated management plans are required.

The present paper is an analysis of the scheme for the interlinking of rivers on a National Water Grid that would transfer water from one basin to another, from a water source having surplus water to areas with scarce water resources.

Available secondary suspended sediment data from the 1980s was analyzed together with new data collected during 2001

The rivers draining the Gangetic plains exhibit remarkable geomorphic diversity, and this has consequently characterized the rivers to be dominantly aggradational in the Eastern Gangetic Plains (EGP) and degradational in the Western Gangetic Plains. We suggest that steam power and sediment supply are the two main fluvial parameters which govern the aggradation or degradation in river systems which, in turn, are controlled by inherent catchment parameters such as rainfall and tectonics. The

Renuka lake, named after the Goddess Renuka ji, the mother of Lord Parashuram, is situated near Dadahu in Sirmour district of Himachal Pradesh. Since years, it has been receiving silt and debris from 22 nallas, which are all around the catchment of the lake, which is causing ecological deterioration, habitat degradation and eutrification, etc.

The ability of many introduced fish species to thrive in degraded aquatic habitats and their potential to impact on aquatic ecosystem structure and function suggest that introduced fish may represent both a symptom and a cause of decline in river health and the integrity of native aquatic communities.