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Length–Weight Relationships of 13 Native Fish Species in the Yujiang River Basin
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Length–Weight Relationships of 13 Native Fish Species in the Yujiang River Basin
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Length–Weight Relationships of 13 Native Fish Species in the Yujiang River Basin
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Journal Article
Length–Weight Relationships of 13 Native Fish Species in the Yujiang River Basin
2025
Overview
The Yujiang River, an important tributary of the Pearl River, flows primarily through Vietnam, Guangxi, and Yunnan in China. This cross‐border watershed supports a remarkable aquatic biodiversity, especially characterized by its unique fish species. In this study, we reported the length–weight relationships (LWRs) of 13 native fish species within the Yujiang River Basin (22.156N–24.353N, 105.845E–109.608E) sampled from July 2024 to February 2025. A total of 1967 fish specimens representing the 13 species were collected using drift gillnets of various sizes (mesh size: 10–70 mm; height: 2.0–5.0 m; length: 100 m). Nonlinear regression analysis yielded coefficients of determination ( r 2 ) ranging from 0.950 to 0.996 and the parameter b spanning 2.57 to 3.74. According to the records from FishBase database and other studies, the LWRs for these 13 fish species from the Pearl River are provided for the first time in this study. Among them, the LWR of Beaufortia granulopinna, Paranemachilus genilepis, Opsariichthys duchuunguyeni, and Sarcocheilichthys caobangensis are first reported in FishBase database. The maximum body length of Ancherythroculter lini is updated to 26.00 cm. Moreover, S. caobangensis is first reported in the Yujiang River Basin in this study. It is expected that the results of this study will provide a basic data for the study of fish ecology, fishery resource management, and hydroacoustic monitoring in Yujiang River Basin.
