Research in Zoology
p-ISSN: 2325-002X e-ISSN: 2325-0038
2015; 5(1): 20-24
doi:10.5923/j.zoology.20150501.03
Pariya Jalili1, Soheil Eagderi1, Yazdan Keivany2
1Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran
2Department of Natural Resources (Fisheries Division), Isfahan University of Technology, Isfahan, Iran
Correspondence to: Soheil Eagderi, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
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The body shape of two populations of Kura bleak (Alburnus filippii Kessler, 1877) from Aras and Ahar-Chai rivers was compared by geometric morphometric method. A total of 63 specimens of Kura bleak were collected from mainstream of Aras and its tributaries Ahar-Chai. Then, the lateral face of their left side were photographed and 13 landmark-points defined and digitized using TpsDig2 software. The obtained data were analyzed using multivariate analyses. The results revealed a significant difference in the body shape of the studied populations associating with body depth and the tip of the snout. The results also showed a higher morphological variation among the specimens of mainstream of Aras River compared to Ahar-Chai ones indicating availability of more diverse habitats. Thus, in a morphological comparative study of different populations of a single species in different habitats, the morphological variation of every population should be considered as a criterion and application of an exploratory multivariate analysis such PCA can help to better understand the phenotypic variations.
Keywords: TPS, Cyprinidae, Caspian Sea Basin, Iran
Cite this paper: Pariya Jalili, Soheil Eagderi, Yazdan Keivany, Body Shape Comparison of Kura Bleak (Alburnus filippii) in Aras and Ahar-Chai Rivers Using Geometric Morphometric Approach, Research in Zoology , Vol. 5 No. 1, 2015, pp. 20-24. doi: 10.5923/j.zoology.20150501.03.
Figure 2. The studied locality of Alburnus filippii populations in Aras and Ahar-Chai rivers |
Figure 4. Graphs of the discriminant function analysis of the two populations of Alburnus filippi |
Figure 5. Wireframe graph showing the consensus body shape differences of two populations of Alburnus filippi |