Studies on the reproductive biology of an endangered coldwater fish golden mahseer, tor putitora (ham.) from anji mahseer hatchery reasi of jammu region

Fecundity and Gonadosomatic Index (GSI) of Tor putitora (Hamilton) collected from Anji Mahseer Hatchery, Reasi was calculated monthly for a period of six months from (March 2011 to August 2011). The observations related to fecundity and GSI are based on 30 female specimens of Tor putitora ranging from 260mm to 550mm in total fish length and weight ranging between 280 gm to 800 gm. The mean value of fecundity was estimated as 5566 eggs for a fish with a mean total body length of 395mm and mean body weight of 455gm. The relationship of fecundity with other parameters such as Total length (TL), Total weight (TW) and Ovary weight (OW) were found to be linear, whereas, the values of GSI were found to increase from March onwards and reaching its peak values during the months of June, July and August. The highest value for GSI was calculated as 10.812 in the month of August indicating the spawning period of Tor putitora.