Introduction: The length–weight relationship (LWR) is useful for estimating the biomass of fish stocks when only the length is known, and the length–length relationship (LLR) is useful for converting different body length types (Forese, 2006; Moutopoulos & Stergiou, 2002; Oscoz, Campos, & Escala, 2005). This information also allows biometric and morphological comparisons between and among different fish species (Baeck, Jeong, Yeo, Huh, & Park, 2012; Lavergne, Zajonz, & Sellin, 2013).
    A total of 178 endemic fish species inhabit the Yangtze River basin (Ye, Li, Liu, Zhang, & Xie, 2011). However, despite such rich fish diversity, basic biological information for most of the species is still scarce (Li, 2001). To expand this knowledge, the present study estimates the LWRs and LLRs of four endemic fish species from the middle reaches of the Yangtze River basin.

J. Shao, J. Y. Li, H. Zhang, D. Q. Lin, X. Xie, J. M. Wu, Q. W. Wei*. Length–weight and length–length relationships of four endemic fish species from the middle reaches of the Yangtze River basin, China. Journal of Applied Ichthyology, 2016, DOI: 10.1111/jai.13158.

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