This volume is the proceedings of the Symposium on Cold Water Fishes of the Trans-Himalayan Region, held in July 2001 in Kathmandu, Nepal. In 32 presentations it reviewed information, experiences, ideas and findings related to fish and fisheries in the region, including fish species distribution, fishing intensity, socio-economic conditions and livelihoods of fisher communities, as well as to the impact of environment degradation, conservation measures and aquaculture technologies for indigenous and exotic cold water fish.