Food and feeding habits of pharaoh cuttlefish, Sepia pharaonis Ehrenberg, 1831 along the Gujarat coast of North-eastern Arabian Sea

Pal, Mahendra and Kardani, Hitesh K and Vase, Vinay Kumar and Sarman, Vagh and Nilmani, (2020) Food and feeding habits of pharaoh cuttlefish, Sepia pharaonis Ehrenberg, 1831 along the Gujarat coast of North-eastern Arabian Sea. Journal of Experimental Zoology India, 23 (2). pp. 1685-1694. ISSN 0972 - 0030

[img]
Preview
Text
Journal of Experimental Zoology India_2020_Vinay Kumar Vase.pdf

Download (394kB) | Preview
Related URLs:

Abstract

The pharaoh cuttlefish, Sepia pharaonis is one of the economically important molluscan species along the North-west coast of India. Sampling carried out at fortnightly intervals from August 2017 to March 2018 to study the food and feeding habits. Samples with an empty stomach were prevalent in almost all months. The index of relative importance (IRI) showed that the dominant prey group were fishes (68.12%), followed by crustaceans (19.84%), molluscs (6.1%) and miscellaneous (5.97%). Acetes sp. (6.91%) was the most dominant prey item during the study period. The empty stomach ratio (ESR) ranged from 18.75% (September, 17) to 63.63% (December, 17).The high value of Gastro somatic index recorded in September month. Stomach fullness index (SFI) was higher during September and February months. Feeding intensity found to be high during September months. Significant variations were not seen (p>0.05) in the feeding indices during different months, different sizes, and between sexes. The findings of the present study can be useful in managing the commercially important species, S. pharaonis as a unit stock in Arabian Sea of Northern Indian Ocean and reinforces the need for regional cooperation on fisheries management.

Item Type: Article
Uncontrolled Keywords: Diet composition, feeding indices, IRI, seasonal variations, Sepia pharaonis.
Subjects: Food and Feeding
Molluscan Fisheries > Cephalopods
Molluscan Fisheries
Divisions: CMFRI-Kochi > Marine Capture > Molluscan Fisheries
Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
CMFRI-Kochi > Marine Capture > Molluscan Fisheries
Subject Area > CMFRI-Kochi > Marine Capture > Molluscan Fisheries
Depositing User: Arun Surendran
Date Deposited: 30 Nov 2021 04:51
Last Modified: 30 Nov 2021 04:52
URI: http://eprints.cmfri.org.in/id/eprint/15540

Actions (login required)

View Item View Item