Coldwater fishes occupy an important place amongst the freshwater fishes of India. The coldwater fisheries deal with fisheries activity in water where temperature of water ranges from 5 to 20 degrees centigrade. The gills of cold water fish are greatly reduced and the gill opening are smaller in size for adaptation to cold temperatures. Important coldwater fishes of India are Mahseers such as Tor putitora, T. tor, T. khudree, T. mosal, Snow Trout such as Schizothorax richardsonii and Schizothoraichthys esocinus, Mountain Trout such as Barilius vagra, B. bendelisis, other fish such as Glyptothorax sp., Garra sp., etc.
