Abstract
Seven hundred and twenty four fish specimens were captured from March to September 2016. The materials used in the current study were cast nets, hand nets. Eight cyprinid fish species were studied for their length-weight relationships. Parameter b in the LWR was 3.03, 3.06, 3.02, 2.29, 2.82, 3.43, 2.73 and 2.47 for Schizothorax plagiostomus, Schizothorax esocinus, Racoma labiata, Tor putitora, Barilius vagra, Garra gotyla, Puntius ticto and Arassius auratus respectively. Current study is the first attempt on the LWRs of cyprinid species, provide a baseline approach for conservation and /management of local fish fauna of economic importance.
Highlights
Research on relationship between length (L) and weight (W) of fish species is an approach towards management of fisheries as it provides required data for stocking the fishes (Bagenal and Tesch, 1977)
Eight cyprinidian fish species were studied for the relationship between body length and body weight, collected from river Panjkora, Pakistan
The LWR b values for three species includes S. esocinus, S. plagiostomus, and R. labiata near to 3.0 which represented the ideal shape of fish with isometric growth
Summary
Research on relationship between length (L) and weight (W) of fish species is an approach towards management of fisheries as it provides required data for stocking the fishes (Bagenal and Tesch, 1977). Current study is important for researchers and managers of fisheries in two important determinations as (1) to guess the W from the L of a fish and (2) to match the average related factors between groups of fishes. River Panjkora Lower Dir is famous for its ichthyofaunal diversity among the fresh water reservoirs of the country. These fish have been studied by Ahmad et al. 724 specimens belonging to eight species of a family cyprinidae from the subjected area were studied to learn their length-weight relationships
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