Low genetic variation suggest single stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian coast

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dc.contributor.author GirishKumar
dc.contributor.author Kunal, S.P.
dc.contributor.author Menezes, M.R.
dc.date.accessioned 2017-09-27T13:05:43Z
dc.date.available 2017-09-27T13:05:43Z
dc.date.issued 2012
dc.identifier.citation Turkish Journal of Fisheries and Aquatic Sciences, vol.12; 2012; 555-564.
dc.identifier.uri http://drs.nio.org/drs/handle/2264/5156
dc.description.abstract Kawakawa Euthynnus affinis is an epipelagic migratory tuna species, widely distributed in the tropical and subtropical waters of the Indo-Pacific region. It constitutes the largest tuna fishery in Indian waters. In present study, restriction fragment length polymorphism (RFLP) analysis of the mitochondrial D-loop region was employed to examine the levels of genetic diversity among kawakawa samples collected from eight main fishing zones (Veraval, Ratnagiri, Kochi, Kavaratti, Port-Blair, Tuticorin, Pondicherry and Vizag) along the Indian coast. A 500 bp segment of mitochondrial D-loop region was screened in 400 samples using six restriction enzymes (Rsa I, Alu I, Hinf I, Hha I, Msp I and Hae III), resulting in 13 composite morphs. Analysis of molecular variance (AMOVA) of mtDNA data revealed no significant genetic differentiation among sites (FST=-0.00446, P=0.84946). Results of the genetic analyses of present study suggest the single stock of kawakawa along the Indian coast.
dc.language.iso en
dc.publisher CFRI publisher
dc.rights Copyright [2012]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subject fishery resources
dc.subject migratory species
dc.subject stocks
dc.subject Euthynnus affinis
dc.title Low genetic variation suggest single stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian coast
dc.type Journal Article


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