Length-weight relationships of four small indigenous fish species from an inland artisanal fishery, Bangladesh

Abstract

Summary This study reports the length–weight relationships (LWRs) of four small indigenous species, Trichogaster lalius (Hamilton, 1822), Nandus meni (Hossain & Sarker, 2013), Lepidocephalichthys annandalei (Chaudhuri, 1912) and Botia dario (Hamilton, 1822) collected between July 2015 and August 2016 from fishermen's catches landed in an inland fish landing center, northeastern Bangladesh. In the study, a new maximum total length (TL) is given for L. annandalei and LWRs of three species T. lalius, N. meni and L. annandalei for the first time in FishBase. Estimated LWRs were W = .014 TL3.17, (r2 = .982) for T. lalius, W = .006 TL3.38, (r2 = .961) for N. meni, W = .004 TL3.27, (r2 = .965) for L. annandalei and W = .020 TL2.87, (r2 = .978) for B. dario.

Length-weight and length-length relationships of four endemic fish species caught from Payra River, Southern Bangladesh

“…According to the Fishbase and scientific literature, no LWRs information was available for Ompok pabo , Acentrogobius cyanomos and A. caninus . The exponent b of LWRs for all populations fluctuated within the limit of 2.5 < b < 3.5 which were in agreement with findings of other researchers (Froese, ; Han et al., ; Ilkyaz, Metin, Soykan, & Kinacigil, ; Islam et al., ; Siddik, Hanif, Chaklader, Nahar, & Mahmud, ). The results obtained from the present study were also compared against Bayesian LWRs data and all are fell within the 95% confidence limits of the Bayesian prediction in FishBase (Froese, Thorson, & Reyes, ).…”

Fish Community Structure of Sandha River: A Link Analysis towards Fisheries Management and Conservation

“…The recommended level of water temperature was 20°C to 30°C to maintain the aquatic ecosystem [28]. But in the present study, Temperature was found a negative correlation with fish species abundance ( Table 5) which indicated that water temperature is at rising level.…”

Length-weight relationships of three catfish species from a tributary of the Dhaleshwari River, Bangladesh

“…The growth coefficient value b normally lies between 2.5 and 3.5 (Carlander, ; Froese, ) and this value of all three species in the present study was within the expected range as well as within the 95% confidence limits of the Bayesian LWR predictions value in Fishbase (Froese & Pauly, ). Thus, the b value of the same fish species differed with the length range used, sampling sites and season, stomach fullness, gonadal maturity, sex, diet and environmental (Islam et al., ; Siddik, Hanif, Chaklader, Nahar, & Fotedar, ; Siddik, Chaklader, Hanif, Islam, & Fotedar, ; Chaklader et al., ). The co‐efficient of determination ( r 2 ) values narrated the proper fitness of the model for growth (Datta, Kaur, Dhawan, & Jassal, ) and fish with ideal growth always shows co‐efficient of determination between 0.9 and <1.…”