Length–weight relationships of seven fish species in the Yangtze River Estuary and its adjacent waters, Eastern China,Journal of Applied Ichthyology

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Length–weight relationships of seven fish species in the Yangtze River Estuary and its adjacent waters, Eastern China
Journal of Applied Ichthyology ( IF 0.9 ) Pub Date : 2021-04-28 , DOI: 10.1111/jai.14212
Lili Chen ₁ , Yuqing Wang ₁ , Kai Wang ₁ , Zhenhua Wang ₁ , Shouyu Zhang ₁

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The length–weight relationships (LWRs) for seven fish species belonging to five families in the Yangtze River Estuary and its adjacent waters are presented. Cynoglossus gracilis, Cynoglossus macrolepidotus, Ctenotrypauchen chinensis, Collichthys niveatus, Ophichthus apicalis and Erisphex potti were collected monthly in 2009 using trammel nets (the size of smaller mesh net was 1.5 m × 15 m × 4 panels with mesh sizes of 2.5, 3.4, 4.3 and 5.8 cm; the size of larger-mesh net was 2.4 m × 30 m × 4 panels with mesh sizes of 5.0, 6.0, 7.0 and 8.0 cm; soaking overnight). Lophiogobius ocellicauda were collected December in 2020 using shrimp trawl nets (mesh size 2.0 cm). The precision of measurement for the fish specimens is 0.1 cm total length and 0.1 g total weight. The estimated ranges of the parameters a and b for the seven fish species were from 0.0001 to 0.0289 and 2.718 to 3.541, respectively. Two new maximum total length were recorded for Ctenotrypauchen chinensis and Ophichthus apicalis.

更新日期：2021-04-28

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