Length-weight relationship and morphological studies of the Polydactylus sextarius, Nemipterus japonicus and Pampus argenteus from the Fiery Cross Reef, South China Sea  

Long Wang1,2,3 , Nan Zhang1 , Zhenhua Ma1 , Huayang Guo1 , Caiyan Zhu1 , Dianchang Zhang1
1. South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300 P. R. China
2. Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture, Guangzhou, 510300, P.R. China
3. College of Fisheries and Life Science, Shanghai Ocean University, shanghai, 201306, China
Author    Correspondence author
International Journal of Aquaculture, 2015, Vol. 5, No. 7   doi: 10.5376/ija.2015.05.0007
Received: 17 Mar., 2015    Accepted: 08 May, 2015    Published: 14 May, 2015
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This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Wang et al., 2015, Length-weight relationship and morphological studies of the Polydactylus sextarius, Nemipterus japonicus and Pampus argenteus from the Fiery Cross Reef, South China Sea, International Journal of Aquaculture, Vol.5, No.7: 1-6 (doi: 10.5376/ija.2015.05.0007)

Abstract

This paper reports the length-weight relationships and morphological characters of three fishes namely, Polydactylus sextarius, Nemipterus japonicus and Pampus argenteus, collected from the Fiery Cross Reef (9o 37’ N, 112o 58’ E) of South China Sea during November 2013. The length-weight relationships of the studied fishes can be expressed as WPo=1.17L1.46 for P. sextarius, WNe=0.07L2.73 for N. japonicus and WPa=0.04L3.05 for P. argenteus. Growth of P. argenteus was found to be positive (b > 3) and N. japonicus (b = 2.73) was negative allometric. Body length of P. sextarius varied from 100.36 to 119.43 mm, and the wet weight ranged from 10.04 to 45.42 g. Body length of N. japonicus varied from 88.37 to 159.54 mm, wet weight ranged from 22.42 to 128.39 g. Body length of P. argenteus varied from 75.13 to 92.07 mm, and wet weight ranged from 20.58 to 42.27 g. The study provides first biological reference in these species in Fiery Cross Reef, South China Sea. In addition, the results of the present study will offer fundamental information for resource assessment as well as for taking up further aquaculture practices of these three species.

Keywords
Length-weight relationship; Morphometry; Polydactylus sextarius; Nemipterus japonicas; Pampus argenteus; Truss network
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