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Length–weight relationships for four fish species from lower stretch of River Ganga, India
Author(s) -
Baitha Raju,
Ray Archisman,
Karna Subodha K.,
Chanu Thangjaum N.,
Swain Himanshu S.,
Ramteke Mitesh H.,
Singh Aprajita,
Manna Ranjan K.,
Das Basanta K.
Publication year - 2018
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/jai.13732
Subject(s) - biology , fish <actinopterygii> , calipers , zoology , fishery , morning , body weight , sampling (signal processing) , veterinary medicine , mathematics , botany , geometry , medicine , filter (signal processing) , computer science , computer vision , endocrinology
Abstract Length‐weight relationships (LWRs) for four fish species from the River Ganga (India) is presented. Sampling was conducted in the lower stretch of the river (Buxar: 25°33′43.90″N and 83°56′3.10″E to Freserganj: 21°35′40.58″N and 88°15′28.92″E) on tri‐monthly basis from September 2016 to December 2017. Specimens were caught in gill nets (mesh, 18–68 mm), cast nets (mesh, 12–14 mm), seine nets (mesh, 12–14 mm) and various traditional traps those were put over night and lifted in early morning. Total length and wet body weight of fish were measured to the nearest 0.1 cm and 0.01 g by a digital caliper and electronic balance respectively. From LWRs, the estimated b values were found to be 2.88 ( Pisodonophis boro ) to 3.17 ( Gagata sexualis ) whereas a value ranged from 0.001 ( Pisodonophis boro ) to 0.009 ( Botia lohachata ). As per FishBase, the species Gagata sexualis and Botia lohachata had new TLmax reported for LWR estimation.