Length–weight relationship of three fish species from the Qiantang River, China

Abstract

Summary Length–weight relationships (LWRs) of the three fish species, Pseudobagrus albomarginatus(Rendahl, 1928), Pseudobagrus crassilabris (Günther, 1864), and Rhinogobius davidi(Sauvage & Dabry de Thiersant, 1874), were determined respectively. Samples were collected from Qiantang River, China during March 2016–December 2017. The bvalues ranged from 2.525 to 2.917, the coefficient of determination (r2) ranged from 0.96 to 0.97. Prior to this study, the length–weight relationship for P. albomarginatus and R. davidi were unknown to FishBase and the new maximum total lengths for three species were not recorded in FishBase. These results are useful for the fishery research and management in Qiantang River.

Length–weight relationships of ten fish species from the Jingjiang reach of the Yangtze River, China

“…Although fish diversity is high in this section, there are few reports on length‐weight relationships (LWRs). LWR is an effective approach for assessing fish biomass based on the conveniently obtained length data (Liu et al, 2018), and in recent years has been widely used in fisheries conservation and management in combination with the other environmental and population parameters (Froese, 2006; Guo et al, 2019; Yang et al, 2017). Thus, this paper describes the LWR parameters of ten fish species from Jingjiang reach of the Yangtze River.…”

Length–weight and length–length relations of 16 freshwater fish species (Actinopterygii) caught in Jiaxing section of the Beijing–Hangzhou Grand Canal, China

“…In this study, we estimated the and LLRs of 16 fish species inhabiting the Jiaxing section of the canal based on the long-term surveyed data, and the estimated parameters could be considered as the mean annual values (Guo et al 2019;Ni et al 2022). Our results provided the new data for FishBase (Froese and Pauly 2022), allow for the convenience of fish stock assessment, and are expected to provide a useful baseline for further studies of population parameters to improve management decisions in the Beijing-Hangzhou Grand Canal.…”

Length-weight-relationship of two Ictalurid catfish species from an artisanal fishery in central México

“…It is well established that knowledge of the length-weight relationship of fish stocks is one of the main tools in designing and managing fishery resources. This simple measure provides useful information regarding the physical condition of exploited fish stocks and constitutes one of the most practical procedures to define the health of a population ( [1,2,18,19,7,21,16] . The Balsas River, in central Mexico, is the largest hydrological system in the country, to drain into the Pacific Ocean.…”