Table of Contents Author Guidelines Submit a Manuscript
Journal of Marine Biology
Volume 2015, Article ID 870919, 8 pages
http://dx.doi.org/10.1155/2015/870919
Research Article

Food and Feeding Dynamics of Stolephorus commersonnii (Lacepede, 1803) (Family: Engraulidae) from South Andaman

Department of Ocean Studies and Marine Biology, Pondicherry University, Brookshabad Campus, P.O. Box 26, Port Blair, Andaman and Nicobar Islands 744112, India

Received 31 July 2015; Revised 28 October 2015; Accepted 29 October 2015

Academic Editor: Jakov Dulčić

Copyright © 2015 M. Arun Kumar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The feeding dynamics of Stolephorus commersonnii along the coastal waters of South Andaman during October, 2011, to September, 2012, were examined by employing “point’s method.” The results of the present study has shown that S. commersonnii mainly is a planktonivorous carnivore chiefly feeding in the pelagic realm on planktonic crustaceans, bivalves, gastropods, and miscellaneous food items. The copepods formed the main prey item, contributing their maximum during November 2011 (47.55%) and lowest in December (24.21%) which was confirmed by various food preference indices. There was no significant seasonal variation in the feeding preference. Lower length classes fed mainly on planktonic copepods and amphipods whereas the higher length classes fed mainly on postlarval shrimps and planktonic crustaceans like Lucifer sp. and Acetes sp. Feeding intensity was seasonal, but independent of the length of fish. Gastrosomatic index was highest during monsoon, indicating active feeding. During the period when a maximum percentage of fully mature individuals were present, the feeding intensity was found to be low. The trophic level of this species was found to be .