MORPHOMETRIC RELATIONSHIP OF CIRRHINUS MRIGALA OF INDO-NEPAI HIRT AIAYAN TERAI REGION OF BIHARAshwini Kumar MishraAbstract Sikrahana water physico-chemical condition suggest the favourable ecological conditions for production potential of quality fish C. mrigala. Relative condition Kn values of different month revealed the C. mrigala attained peak condition in February, June and OctoberThe high value Kn was found to be in lower length groups than older.The body weight showed a clear-cut increasing trend with the increase in body length.The repressive co-efficient (b) values for all the three relations came to be more than 3 i.e. 3.03921, 3.01659 and 3.11611 for standard length, furcal length and total length re-spectively suggest that the fish obeys the general "Cube law" in this region.The slope value is 3.11611 for length and weight relationship. It was observed that furcal length would increse by a power of 1.00743 with unit increase in standard length.The value of exponent "n" has been found to be 4.36.The increase and decrease in length's approved to be cyclic in nature and attained maturity on one year.
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