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Morphometric analysis of four different populations of Penaeus monodon (Crustacea, Decapoda, Penaeidae)

Authors

  • Miao Miao Sun,

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
    2. College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai, China
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    • These authors contributed equally to this work.
  • Jian Hua Huang,

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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    • These authors contributed equally to this work.
  • Shi Gui Jiang,

    Corresponding author
    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
    • Correspondence: S G Jiang, South China Sea Fisheries Research Institute, CAFS, Chinese Academy of Fishery Sciences, Guangzhou Guangdong 510300, China. E-mail address: jiangsg@21cn.com

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  • Qi Bin Yang,

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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  • Fa Lin Zhou,

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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  • Cai Yan Zhu,

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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  • Li Shi Yang,

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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  • Tian Feng Su

    1. Key Lab. of South China Sea Fishery Resources Exploitation & Utilzation, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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Abstract

The morphological variation of Penaeus monodon was studied based on the morphometric analyses of samples collected throughout Banda Aceh, Khanom, Mozambique and Sanya. A total of 470 samples were investigated using eight measurements. Multivariate analyses [principal components (PCA), discriminant function (DFA) and cluster analyses (CA)] revealed obvious morphometric differences among the four geographical populations. PCA indicated that the first three components of the females and the first two components of the males accounted for 75.17% and 71.84% of the total morphological variability respectively. In DFA, the overall assignment of female and male individuals into their original population was 78.95% and 84.37% respectively. For females, the proportion of individuals correctly classified into their original population was 76.0%, 92.8%, 92.6% and 54.5% for population 1, 2, 3 and 4 respectively. For males, the proportion was 97.2%, 68.1%, 100% and 72.2% respectively. For females and males, CA showed that the four populations could be divided into two main clusters of morphological characteristics. CA also indicated that the morphological variation of population 3 was greater, whereas the morphology of population 2 was strikingly similar to that of population 4.

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