Scomber indicus, a new species of mackerel (Scombridae: Scombrini) from Eastern Arabian Sea
CMFRI Repository
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Relation |
https://eprints.cmfri.org.in/11198/
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Title |
Scomber indicus, a new species of mackerel (Scombridae: Scombrini) from Eastern Arabian Sea |
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Creator |
Abdussamad, E M
Sukumaran, Sandhya Ratheesh, K O Arun Koya, Mohammed Koya, K P Said Rohit, Prathibha Reader, Sally Akhilesh, K V Gopalakrishnan, A |
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Subject |
Pelagic Fisheries
Fish Taxonomy |
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Description |
Scomber indicus, a new species of mackerel is described based on the specimens collected from the eastern Arabian Sea. The species is differentiated from its nearest congener Scomber australasicus, in having 29-32 gill rakers on lower limb of first gill arch, posteriormost part of hypohyal blunt, with presence of a pit between the hypohyal and the ceratohyal and also in having a posteriorly directed haemal spine which is deeply curved in the basal region. Genetic differentiation and divergence between the newly described species and the 4 valid species of the genus Scomber viz., S. scombrus, S. japonicus, S. australasicus and S. colias were compared using cytochrome c oxidase 1 and cytochrome b gene sequences. The new species was found closest to S. colias followed by S. japonicus with Kimura 2 parameter (K2P) values of 1.4 and 1.8% respectively. In the phylogenetic tree, sequences of Scomber indicus sp. nov. formed a distinct well separated clade with significant bootstrap values as compared to the sequences of S. scombrus, S. japonicus, S. australasicus and S. colias indicating their distinctiveness and separate species status. |
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Date |
2016
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Type |
Article
PeerReviewed |
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Format |
text
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Language |
en
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Identifier |
https://eprints.cmfri.org.in/11198/1/A%20Gopalakrishnan_2016_IJF_63.3_Scomber%20indicus.pdf
Abdussamad, E M and Sukumaran, Sandhya and Ratheesh, K O Arun and Koya, Mohammed and Koya, K P Said and Rohit, Prathibha and Reader, Sally and Akhilesh, K V and Gopalakrishnan, A (2016) Scomber indicus, a new species of mackerel (Scombridae: Scombrini) from Eastern Arabian Sea. Indian Journal of Fisheries, 61 (3). pp. 1-10. |
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