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Biological observations on the bristly catshark Bythaelurus hispidus from deep waters off the south-west coast of India

Citation

Akhilesh, KV and White, WT and Bineesh, KK and Ganga, U and Pillai, NGK, Biological observations on the bristly catshark Bythaelurus hispidus from deep waters off the south-west coast of India, Journal of Fish Biology, 82, (5) pp. 1582-1591. ISSN 0022-1112 (2013) [Refereed Article]


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DOI: doi:10.1111/jfb.12087

Abstract

Biological data are presented for the poorly known bristly catshark Bythaelurus hispidus based on specimens collected from the by-catch of the commercial deep-sea shrimp trawl fishery operating in the Arabian Sea at depths of 200500 m off the south-west coast of India. One hundred and sixty-two individuals, which ranged from 120 to 366 mm total length (LT), were collected for this study. Size-at-maturity (L50) for females and males was estimated at 252 and 235 mm LT, respectively. The reproductive mode of B. hispidus was aplacental viviparity, which is the rarest reproductive mode within the Scyliorhinidae and is considered to be the most advanced of the three reproductive modes occurring within this family. Dietary analysis of stomach contents revealed B. hispidus feeds on a variety of prey, primarily fishes.

Item Details

Item Type:Refereed Article
Keywords:aplacental viviparity, Arabian Sea, diet, maturity, reproductive biology
Research Division:Biological Sciences
Research Group:Evolutionary Biology
Research Field:Animal Systematics and Taxonomy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Biological Sciences
Author:White, WT (Dr William White)
ID Code:119512
Year Published:2013
Web of Science® Times Cited:3
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2017-08-02
Last Modified:2017-08-02
Downloads:0

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