1National Bureau of Fish Genetic Resources, Canal Ring Road, Lucknow-226002, Uttar Pradesh, India
2Central Institute of Fisheries Education, Versova, Andheri (W), Mumbai-400061, India
3Awadhesh Pratap Singh University, Rewa-486003, Madhya Pradesh, India
*Corresponding Author: Abhishek K. Malakar, abhishekmalakar@gmail.com
Online published on 5 September, 2013.
The length-weight relationships (LWRs) were studied of 116 fish samples of Ompok bimaculatus captured in the Betwa River (tributary of the Yamuna River) from December 2009 to January 2011. The estimated ranged of total length from 129.05 mm to 221.79 mm and weights from 21.16 g to 37.24 g, respectively. The relationship between total and standard lengths (TL and SL) was determined according to the power regression model. The b value in the length-weight relationship differed significantly between males and females (P>0.05). Length weight relationship showed positive allometric for males as W=-2.83×L 3.35 (r2=0.95, n=64) and for female determined as W=-2.44×L 3.09 (r2=0.94, n=52). The present study may be useful for basic information on the LWRs of indigenous Ompok bimaculatus fishes in Betwa River, India.
Ompok bimaculatus, length weight relationship, betwa river
