Short communication: Morphological analysis of Alburnoides samiii from Toolkhone river, Guilan province, south Caspian Sea basin
Publish place: Iranian Journal of Fisheries Sciences، Vol: 19، Issue: 2
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JIFRO-19-2_037
تاریخ نمایه سازی: 27 بهمن 1400
Abstract:
This study investigated the effect of the installation of flood dams on the morphological variation of Alburnoides samiii Mousavi-Sabet, Vatandoust & Doadrio, ۲۰۱۵, in Toolkhone River, origin from Somam Mountain, the South Caspian Sea basin, north of Iran. Multivariate analysis (MANOVA) was employed for morphometric characteristics of the fish inhabit upstream and downstream of the dams. Significant differences in morphometric variables were observed between upstream and downstream populations. So that the downstream population had elongate body shape compared to the upstream ones. Results of ANOSIM analysis revealed that upstream sampling stations were significantly different from the downstream stations in terms of Bray Curtis dissimilarity(R = ۰.۵۴, p > ۰.۰۰۱). SIMPER analysis showed that fork length, total length, dorsal fin depth, body width, prepectoral distance, length of caudal fin, depth of pelvic fin, depth of anal fin base, length of dorsal fin base and length of pectoral fin were significantly contributed in the dissimilarity. Among these parameters, fork length, total length and standard length had more rate (%) of contribution. Liner discriminant analysis revealed that body width had the most correlation with ordination axis. In conclusion, although the isolation time of the two populations due to the construction of the dams was relatively short (approximately ۱۰ years), the upstream and downstream groups exhibit significant differences in morphological variables associated with their hydrodynamic balance and swimming abilities.
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Authors
M.F Vajargah
Department of Fishery, Faculty of Natural Resources, University of Guilan, Sowmehsara, Iran
M.H. Gerami
Young Researchers and Elite Club, Shiraz Branch, Islamic Azad University, Shiraz, Iran
M. Sattari
Department of Fishery, Faculty of Natural Resources, University of Guilan, Sowmehsara, Iran
A. Hedayati
Department of Aquatic production and Exploitation, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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