Comparison of length-frequency versus statolith age analysis of Uroteuthis (Photololigo) singhalensis in eastern Arabian Sea

Sasikumar, Geetha and Mohamed, K S and Sajikumar, K K and Varghese, Eldho and Karamathulla, S P and Alloycious, P S and Jestin Joy, K M and Athulya, C K (2020) Comparison of length-frequency versus statolith age analysis of Uroteuthis (Photololigo) singhalensis in eastern Arabian Sea. In: Marine Ecosystem Challenges & Opportunities (MECOS 3). Convenor, MECOS3, Kochi, p. 51. ISBN 978-93-82263-37-1

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Abstract

Loliginid squids are a commercially important group of neritic squids in the coastal marine waters in tropical and temperate regions around the world and are valuable resources in many areas. Uroteuthis (Photololigo) singhalensis is listed among the commercial species of loliginid squid exploited from the China Sea to the eastern Arabian Sea. Though this species is distributed from western Pacific to the Indian Ocean from the Andaman Sea, the Bay of Bengal to the Arabian Sea and the eastern African coasts, there is little information on the life cycle of this species throughout its distributional range. The objective of this study is to determine the length-weight relationship, age and growth of U. (P.) singhalensis off eastern Arabian Sea. Most earlier estimates of growth in tropical squids are derived from length frequency analysis. The accuracy and precision of squid growth estimates have been enhanced by using statolith increment analysis, hence statolith increment is used to determine age and individual growth rate of squid off the eastern Arabian Sea. Further, the comparison of the length frequency analysis with statolith ageing techniques is attempted.

Item Type:	Book Section
Subjects:	Fish and Fisheries > Fish biology > age and growth Fish and Fisheries > Fish biology Molluscan Fisheries > Cephalopods Molluscan Fisheries
Divisions:	CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division
Depositing User:	Arun Surendran
Date Deposited:	04 Oct 2023 04:54
Last Modified:	04 Oct 2023 04:54
URI:	http://eprints.cmfri.org.in/id/eprint/17511

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