Integrated Taxonomic Approach for Identification of Octopus Species from the Southwest Coast of India

Vargheese, Sneha and Sajikumar, K K and Basheer, V S (2022) Integrated Taxonomic Approach for Identification of Octopus Species from the Southwest Coast of India. Malacologia, 64 (2). pp. 287-299.

Text Malacologia_2022_Sajikumar K K.pdf Restricted to Registered users only Download (3MB) | Please mail the copy request to cmfrilibrary@gmail.com

Abstract

Cephalopods are a commercially important resource for the Indian coast. Species of Octopus alone account for around 10% of the global cephalopod fishery and roughly 3% of Indian fisheries. Proper identification of cephalopods in the field is difficult, and accurate identification of species is important for conservation as well as for sustainable fisheries management of octopus species. With a view to identify and genetically catalogue the octopus species from the southwest Indian coast, 28 specimens were collected from different landing centres in the region and identified morphologically. Molecular characterization was done with partial sequence information from the mitochondrial Cytochrome C Oxidase-I (COI) gene. All the specimens analysed in the study belong to the family Octopodidae. The specimens were identified as four species of Amphioctopus: Amphioctopus neglectus, A. marginatus, A. aegina and A. rex, and two Cistopus: Cistopus indicus and C. taiwanicus, as well as, Octopus vulgaris and Callistoctopus macropus. In the present study, Octopus vulgaris showed genetic similarity with Octopus vulgaris Type III but with 1% divergence from Octopus vulgaris Type II and 3% divergence from Octopus vulgaris Type IV.

Item Type:	Article
Uncontrolled Keywords:	Octopus; barcoding; taxonomy; fisheries; conservation
Subjects:	Molluscan Fisheries > Cephalopods Molluscan Fisheries Fish and Fisheries Fish and Fisheries > Fish Taxonomy
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:	21 Jun 2022 05:27
Last Modified:	17 Feb 2023 09:08
URI:	http://eprints.cmfri.org.in/id/eprint/15991

Actions (login required)

View Item