Premium
Length–weight relationships of five catfish species (Siluriformes) from the Ganga River, India
Author(s) -
Gupta Deepmala,
Dwivedi Arvind Kumar,
Tripathi Madhu
Publication year - 2019
Publication title -
lakes and reservoirs: research and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.296
H-Index - 39
eISSN - 1440-1770
pISSN - 1320-5331
DOI - 10.1111/lre.12287
Subject(s) - catfish , biology , veterinary medicine , fishery , fish <actinopterygii> , body weight , zoology , medicine , endocrinology
Knowledge of the length–weight relationships (LWRs) of fish is an important tool to understand fish body form, growth pattern, stock management and their conservation. The present study focused on investigating the length–weight relationships for five catfish species, Pachypterus atherinoides (Bloch, 1794), belonging to family Horabagridae; Batasio batasio (Hamilton, 1822) family Bagridae; Bagarius yarrelli (Sykes, 1839), family Gogangra viridescens (Hamilton, 1822); and Sisor rhabdophorus (Hamilton, 1822) belonging to family Sisoridae. Specimens were collected from the middle stretch of the Ganga River in India from November 2016 to May 2018. A total of 174 specimens of five fish species were collected, and their total lengths were measured to the nearest centimetre and the body weight to the nearest gram. The value of the parameter slope ( b ) of LWRs of the five species ranged from 2.86 ( B. yarrelli ) to 3.16 ( G. viridescens ), with a mean value of 2.99. The results of the present study documented the new maximum total length (TL) for P. atherinoides and S. rhabdophorus . The present study also provides the first reference regarding LWRs for S. rhabdophorus.