Landmark-based morphometric and meristic variations of freshwater garfish, Xenentodon cancila from four natural stocks of South-Western Bangladesh

  • Md Sarower E Mahfuj Department of Fisheries and Marine Bioscience, Jashore University of Science and Technology, Jashore, Bangladesh
  • Md Motiur Rahman Department of Fisheries and Marine Bioscience, Jashore University of Science and Technology, Jashore, Bangladesh
  • Monirul Islam Regional Agricultural Research Station, Bangladesh Agricultural Research Institute, Jashore, Bangladesh
  • Md Abdus Samad Department of Fisheries and Marine Bioscience, Jashore University of Science and Technology, Jashore, Bangladesh
  • Alok Kumar Paul Department of Fisheries, University of Rajshahi, Rajshahi, Bangladesh
  • Ripon Kumar Adhikary Department of Fisheries and Marine Bioscience, Jashore University of Science and Technology, Jashore, Bangladesh
Keywords: Morphometric; meristic; garfish; truss network; Bangladesh

Abstract

Objective: The morphometric and meristic variations of Xenentodon cancila was studied based on the landmark-based truss network system to assess their phenotypic variations among four different freshwater stocks, viz. Boluhorpur baor, Jhenaidah (BBJ) (n = 29); Bhairab River, Jashore (BRJ) (n = 34); Arial Khan River, Madaripur (AKRM) (n = 28), and Bohnni baor, Gopalganj (BBG) (n = 25) in Bangladesh.

Materials and methods: Seven meristic characters were counted by using a needle. Eight mor­phometrics and 28 truss measurements were measured by using tpsDigV.2.1 software. In meristic characters, Kruskal–Wallis test was performed to determine any significant differences, whereas, in morphometrics and truss measurements, univariate statistics and discriminant function analy­ses were carried out by using SPSS 22 version.

Results: Significant differences were observed in four meristic characters among seven meristic characters in the Kruskal–Wallis test. In univariate statistics, only nine characters were observed significantly different among eight morphometrics and 28 truss measurements. The contribu­tion of three discriminant function analyses (DFA), in which first DFA showed 49.2%, second DFA showed 33%, and third DFA showed 17.8% on behalf of both morphometric and truss measure­ments. In discriminant space, the four stocks were clearly separated. Two clusters were formed among four stocks, where BBG formed a single cluster, whereas BBJ and BRJ aggregately formed another cluster. Additionally, AKRM formed a sub-cluster with BBJ.

Conclusion: The preliminary information generated from the current study would be beneficial for further genetic studies and in the assessment of ecological impacts on X. cancila stocks in Bangladesh.

J. Adv. Vet. Anim. Res., 6(1): 117-124, March 2019

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Abstract
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Published
2019-03-31
How to Cite
Mahfuj, M. S., Rahman, M. M., Islam, M., Samad, M. A., Paul, A., & Adhikary, R. (2019). Landmark-based morphometric and meristic variations of freshwater garfish, Xenentodon cancila from four natural stocks of South-Western Bangladesh. Journal of Advanced Veterinary and Animal Research, 6(1), 117-124. Retrieved from https://www.banglajol.info/index.php/JAVAR/article/view/40844
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Original Articles