Document Type : Research Paper

Authors

1 MSc Student, Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran

2 Assistant Professor, Department of Animal Biological Innovation, Applied Zoology Research Center, Ferdowsi University of Mashhad, Iran

3 3PhD, National Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran

4 Assistant Professor, Far Water Fisheries Research Center, National Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Chabahar, Iran

10.22051/jab.2023.43467.1562

Abstract

Introduction:The study of fish in aquatic ecosystems is important from many aspects, including ecology, behavior, protection, and management of water resources, exploitation of reserves, and their cultivation the genus Acanthopagrus includes species with high economic importance and many challenges in their classification. The reason for this is the morphological similarity between a large number of their species.
Methods:The purpose of this study is to investigate the morphological diversity of 5 species of Acanthopagrus fishes using traditional morphometry, truss system and geometric morphometry in the Gulf of Oman and the Persian Gulf. In the present study, in traditional morphometry17 morphometric charactris and 10 meristic charactris were measured . In the geometric method, 17 landmarks were placed on the images, and then morphological differences between species were subjected to principal component analysis (PCA) and canonical variate analysis (CVA).
Results:In the traditional approach,morphometric charactris show the separation of A. arabicus species from two species, A. bifasciatus and A. catenula, meristic charactris performed much better than quantitative charactris and separated most of the species from each other. The number of lateral line scales and the number of scales above the lateral line showed the greatest role in the separation of the members of this genus. Also, the truss approach separated A. catenula and A. bifasciatus species from other species. The geometric method shows the separation of two species, A. arabicus and A. sheim.

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Main Subjects

 
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