LENGTH-WEIGHT RELATIONSHIP AND RELATIVE CONDITION FACTOR IN TOR CHILINOIDES (PISCES: CYPRINIDAE) FROM GARHWAL HIMALAYA

The paper deals with the length-weight relationship and condition factor in Tor chilinoides (Mc Clelland), collected from the river western Nayar of Garhwal Himalaya. The study indicated that there was a close relationship between length and weight. The value of regression coefficient 'b' was obtained 3.83 for males (r = 0.96), and 6.15 (r = 0.891) for females and 5.03 (r = 0.902) for pooled data. The higher values were either due to maturation of gonads during summer (4.12 for males and 6.94 for females) or due to the favourable feeding environment in winter (3.05 for males and 4.65 for females). The relative condition factor was calculated for T. chilinoides. The highest value for male fish was 2.122 + 0.1765 in the month of August and 1.988 + 0.1734 for the females in March. This entire period is a period of sexual maturity in fish. March is also a better feeding period due to favourable ecological parameters.