Length-weight relationships for three zoarcoid fish species from the coastal waters of the northern Yellow Sea, China

Abstract

Length–weight relationships (LWRs) were determined for three zoarcoid fish species: Zoarces elongatus Kner, 1868, Pholis fangi (Wang & Wang, 1935) and Chirolophis japonicus Herzenstein, 1890. Samples were collected from the coastal waters of the northern Yellow Sea (near Dalian City) using bottom trawl nets (20 mm stretched mesh size in the cod-end) for Zoarces elongatus and Pholis fangi and set gill nets (mesh size 15.6 mm) for Chirolophis japonicus. Samples were taken from mid-March to early April 2017. Parameter b values in the fitted LWRs were 3.119, 3.440 and 3.423 for Z. elongatus, P. fangi and C. japonicus, respectively.