Length–weight relationship of six endemic fish species in the Qinghai‐Tibet Plateau, China

Abstract

Length-weight relationships (LWRs) of fish are applied to elucidate relationship between total length or standard length and body weight (Duvan Gomez-Vanega & López-Uriarte, 2021;Munilkumar et al., 2021;Zhang et al., 2018). LWRs are useful in fishery science and management provided they are obtained in combination with other essential parameters required for stock assessment (Danielle, 2017). Generally, LWRs can be also used to compare the condition of a species from different habitats when all studies involved use the same standardized sampling methodology (Hossain et al., 2017;Wang et al., 2016). In the other hand, with the increasing attention to the conservation of biodiversity, non-destructive monitoring for fish is particularly important, especially for the rare and endemic or some protected fish species.However, LWRs of fish could simplify field monitoring progress

Length‐weight relationships of nine endemic fish species from the trans‐border river in the southern slope of the Himalaya, China

“…In this study, the estimated b value ranged from 2.557 to 3.228 that remained within the expected range (2.5 to 3.5) (Froese, 2006). There were some deviations of the b value simulated in this study for partial endemic species when compared with other studies (Akhtar & Fiaz Khan, 2018; Chen et al, 2017; Sui et al, 2015; Yang et al, 2021). The differences in the b values may be due to several factors such as methodology and effort of fishing, type of habitat, seasonality, geographic region, health, species, sex, diet, etc.…”

“…Length–weight relationships (LWRs) are important in fishery management and applied extensively to fishery research in the QTP (Lin et al, 2017; Xie et al, 2018; Yang et al, 2021). However, most studies of endemic fishes focused on these river basins such as Yarlung Tsangpo River, the Lancang River, the Nujiang River, etc.…”

Length–weight relations of 14 endemic and indigenous freshwater fish species (Actinopterygii) from the Aral Sea basin, Uzbekistan

“…The results of the presently reported study are concordant with the expected range. It has been shown that when b is greater than three, fish grow faster in weight than in length (Islam et al 2017;Yang et al 2021). In addition, a b value lower than 3.0 signifies that fish expend more energy on axial growth than to accumulate mass, which could help them seek food and avoid predators (Yang et al 2021).…”

“…It has been shown that when b is greater than three, fish grow faster in weight than in length (Islam et al 2017;Yang et al 2021). In addition, a b value lower than 3.0 signifies that fish expend more energy on axial growth than to accumulate mass, which could help them seek food and avoid predators (Yang et al 2021). The calculations performed in this study indicate that, in Iskandaria kuschakewitschi, Paracobitis longicauda, and Triplophysa daryoae, parameter b was lower than 3.0, which may be due to cold water, severe environment, low availability of food resources, the large abundance of predators and food competitors, and other unpredictable reasons (Le Cren 1951;Rypel and Richter 2008;Wang et al 2016).…”

Comparative account on the length-weight and length-length relationships and condition factor of six cyprinid fishes from Dal Lake, Kashmir

“…Length-weight relationships (LWRs) and length-length relationships (LLRs) are significant tools in fisheries management for the proper understanding of growth pattern and condition of fish species from different habitats (Jennings et al 2001;Wang et al 2016;Yang et al 2022). The LWRs are also used for the interconversion of length to weight and weight to length in order to determine growth at specific length (Bolarinwa and Popoola 2013).…”