Record Details

New record of blunthead pufferfish, Sphoeroides pachygaster (Muller & Troschel, 1848) (Tetraodontiformes: Tetraodontidae) from Indian water along with DNA barcode and some biological aspects

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Title New record of blunthead pufferfish, Sphoeroides pachygaster (Muller & Troschel, 1848) (Tetraodontiformes: Tetraodontidae) from Indian water along with DNA barcode and some biological aspects
 
Creator Ramachandran, S
Kumar, T T Ajith
Purushothaman, P
Lal, K K
Varghese, S P
Unnikrishnan, N
Ayoob, A E
Ramalingam, L
 
Subject Arabian Sea
Fecundity
Histology
Mitochondrial 16S rRNA
New record
Sphoeroides pachygaster
 
Description 565-572
Blunthead pufferfish, Sphoeroides pachygaster (Muller and Troschel 1848) was recorded for the first time in Indian seas.
A single female specimen of S. pachygaster was caught in bottom trawl operation at 263 – 310 m depth of the Eastern
Arabian Sea. Morphometric and meristic description are presented in detail and compared with the pertinent records
available elsewhere. The specimen collected was fully matured with Gonado Somatic Index (GSI) of 17.9 %. Gonad
occupied two-third of the abdominal cavity, ova diameters ranged between 0.45 and 0.6 mm and the absolute fecundity
estimated was 0.238 million eggs. Histological studies revealed that, this species performs single spawning strategy and it is
the first information on the reproduction of S. pachygaster in India. Available reports on the occurrence of this species
indicated distribution in the Mediterranean Sea, Atlantic, Indian and Pacific Oceans; however, the present record confirms
its distribution in the Arabian Sea. Wide variations in the meristic counts among the specimens of this species collected from
various locations are also discussed. Molecular analysis of the present specimen using Mitochondrial 16S rRNA gene
sequences, confirmed the identity as S. pachygaster with intra specific divergence of 00.0 – 0.04 %. This report is the first
well documented, confirmed record and re-description of S. pachygaster from the Indian Ocean, which documents a new
addition to the family, Tetraodontidae of the Indian ichthyofauna.
 
Date 2022-08-31T04:56:59Z
2022-08-31T04:56:59Z
2022-09
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscpr.res.in/handle/123456789/60412
https://doi.org/10.56042/ijms.v51i06.41287
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.51(06) [JUNE 2022]