Length–weight relationships for five fish species from the middle reaches of the Yangtze River, China

• Published in: Journal of applied ichthyology Vol. 34; no. 4; pp. 1045 - 1047
• Main Authors: Xiong, M. H., Shao, K., Li, W., Yu, D., Shi, F.
• Format: Journal Article
• Language: English
• Published: Berlin Wiley Subscription Services, Inc 01-08-2018
• Subjects: Acheilognathus hypselonotus; Culter oxycephaloides; Distoechodon tumirostris; Fish; fisheries ecology; fisheries resources; Gillnets; Length-weight relationships; Micropercops swinhonis; Rivers; Sarcocheilichthys nigripinnis; Species; China; Yangtze River; China, People's Republic, Changjiang River
• ISSN: 0175-8659; 1439-0426
• DOI: 10.1111/jai.13693

Summary
Length–weight relationships (LWRs) for five fish species which were captured by trap‐nets and gillnets (major mesh size: 1–10 cm) from the middle Yangtze River, China (29°47′ – 29°26′N; 112°51′ – 113°08′E) were determined in September 2017. These were Acheilognathus hypselonotus (Bleeker, 1871), Culter oxycephaloides Kreyenberg & Pappenheim, 1908, Distoechodon tumirostris Peters, 1881, Sarcocheilichthys nigripinnis (Günther, 1873) and Micropercops swinhonis (Günther, 1873). The LWRs were estimated using the logarithmic form of the formula W  =  a  ×  Lb. The b value ranged from 2.879 for A. hypselonotus to 3.285 for M. swinhonis. LWRs for four fish species and new maximum lengths for three species are presented to FishBase for the first time.