Study of morphometric and meristic characters of Kura barbel (Barbus cyri) in the southern Caspian Sea basin

Document Type : Original Article

Authors

1 Department of Fisheries, Faculty of Natural Resources, Isfahan University of Technology, Isfahan

2 Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj

3 Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan

Abstract

In order to study of morphometric and meristic characters of Kura (Barbus cyri) in the southern Caspian Sea basin, 78 specimens of fish were caught by electrofishing from Sefid rud, Sardab rud and Tajan Rivers. 32 morphometric characters were measured by digital caliper and 9 meristic characters were counted using a stereomicroscope. Morphological characteristics were standardised before statistical analysis to reduce the effect of the allometric growth. Then, the data obtained were analysed by PCA and MANOVA/CVA methods. In morphometric characters, 9 factors showed about 71% of the variation and in the meristic characters, 3 factors showed about 61% of the variation between the studied populations. Among the studied populations, there were significant differences in 17 morphometric and 4 meristic characters (P <0.05). It seems, differences among the studied habitats is the most important factor in the separation of populations.

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