Description of a new species of queenfish, Scomberoides pelagicus from Indian seas

Aim: The study was carried out to ascertain whether morphotype of Scomberoides commersonnianus (Talang queenfish) existing along the Indian coast is a new species or not. Methodology: Talang queenfish and the morphotype were tested for their uniqueness using systematic and molecular tools. The morph...

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Published inJournal of environmental biology Vol. 43; no. 1; pp. 105 - 114
Main Authors Abdussamad, E M, Gopalakrishnan, A, Mini, K G, Sukumaran, S, Divya, P R, Retheesh, T B, Muhammed, A A, Dipti, N V, Akhil, A R, Thomas, T, Jacob, K D
Format Journal Article
LanguageEnglish
Published Lucknow Triveni Enterprises 01.01.2022
Subjects
Cytochrome
Cytochrome b
Cytochrome oxidase I
Cytochromes
Divergence
Environmental science
Fish
Fishing
Gene sequencing
Genetic analysis
Morphology
Morphometry
New species
Oxidase
Phylogenetics
Phylogeny
Scomberoides
Taxonomy
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Summary:Aim: The study was carried out to ascertain whether morphotype of Scomberoides commersonnianus (Talang queenfish) existing along the Indian coast is a new species or not. Methodology: Talang queenfish and the morphotype were tested for their uniqueness using systematic and molecular tools. The morphometric and meristic details including otolith morphometry were analysed and compared for taxonomic divergence and Cytochrome Oxidase I and Cytochrome b gene sequences for quantifying genetic divergences. Results: The systematic analysis indicated significant morphometric differences between both. The otolith morphometry and phylogeny also confirmed the divergence between them, and qualified the morphotype as an independent species status and named Scomberoides pelagicus sp. nov. Interpretation: The new species is distinct by deep ovate body, concave dorsal head profile, anal fin origin anterior to second dorsal fin and pelvic to pectoral fin, helical arrangement of body scale and stout and less numerous gill rakers on the first gill arch. The phylogeny as on Cytochrome b and Cytochrome Oxidase 1 sequences are very distinct, with 11.2% and 2.0% divergence respectively. Their known distributional range are peninsular region of Indian coast, Malaysian region of the South China Sea and Manila Bay, Philippines.
ISSN:0254-8704
2394-0379
DOI:10.22438/eb/43/1/MRN-1975