Length-weight relationship and condition factor of fresh water fish from Himalayan state

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Vishal Rajput, Dipanshu, Richa Gaur

                     Department of Biotechnology and Biochemistry Sardar Bhagwan Singh University.                                                                                 Uttarakhand

Length and weight relationship and Fulton’s condition factor may be used for understanding the growth pattern of a particular fish. These two parameters provide fundamental information regarding the growth parameters for sustainable fishery management in the natural as well as man-made reservoirs. The length (L) and weight (W) relationship was calculated for Catla catla found in Nanak Sagar reservoir, which is the largest one with the total water surface area of 4600 ha in Himalayan state Uttarakhand. The calculation of b for the length and weight relationship (W=aLb) was recorded as 2.990 for G1, 2.889 for G2, 3.108 for G3 and 2.790 for overall sample. The average allometric coefficient ‘b’ of the length-weight relationship was found (2.361) is a negative allometric growth pattern.  Further results showed highly correlated LWR (r2 = 0.932) of fish whereas, Fulton’s condition factor (K) ranged between 2.943-3.263 (average 3.089).

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