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Morphological and molecular evidence supports the first occurrence of two fishes, Siganus sutor(Valenciennes, 1835)and seriolina nigrofasciata(Rüppell, 1829)(Actinopterygii:Perciformes), from marine waters of Odisha coast, Bay of Bengal, India

引用

Acta Oceanologica Sinica 2020年第6期39卷 26-35页

作者： Tapan K.Barik Surya N.Swain Bijayalaxmi Sahu Bibarani Tripathy Usha R.Acharya Post Graduate Department of Zoology Berhampur UniversityBerhampur 760007OdishaIndia

Marine ecosystems provide a wide variety of diverse habitats that frequently promote migration and ecological *** extent to which the geographic distribution of marine organism has reshaped by human activities remains *** limitations intrinsic to morphology-based identification systems have engendered an urgent need for reliable genetic methods that enable the unequivocal recognition of fish species,particularly those that are prone to overexploitation and/or market *** the present study,however,an attempt has been taken to identify two locally adapted fish species,Siganus sutor(Valenciennes,1835)and seriolina nigrofasciata(Rüppell,1829)of order Perciformes,which happens to be the first record in Odisha coast,Bay of *** diagnostic characteristics of Siganus sutor are:dorsal fin XIII-10,anal fin VII-9,pectoral fin 15,pelvic fin II-3,while that of seriolina nigrofasciata dorsal fin VI-I-35,anal fin I-17,pectoral fin 16,pelvic fin *** COI barcodes generated in this study were matched with reference sequences of expected species,according to morphological *** and likelihood phylogenetic trees were drawn based on DNA barcodes and all the specimens clustered in agreement with their taxonomic classification at the species *** phylogeographic studies based on haplotype network and migration rates suggest that both the species were not panmitic and the high-frequency population distribution indicates successful *** result of this study provides an important validation of the use of DNA barcode sequences for monitoring species diversity and changes within a complex marine ecosystem.

关键词： Siganus sutor seriolina nigrofasciata morphological characteristics DNA Barcoding

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