Studies on the biology of the dog-whelk Nassastolata (Gmelin) of Portonovo waters

Thivakaran, G A and Kasinathan, R (1988) Studies on the biology of the dog-whelk Nassastolata (Gmelin) of Portonovo waters. CMFRI Bulletin, 42 (1). pp. 116-125.

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Abstract

The morphology, anatomy and sex ratio of the mud snail Nassa stolata (Gmelin) were studied. The species, being a facultative omnivore. feeds mainly on dead animals and the digestive system is suited to this mode of feeding. The radula is of rachiglossate type and is well suited for tearing and rasping. The female reproductive system is more complicated than that of male- Studies on sex ratio clearly show the preponderance of males over females. The males mature at a size of 12.1 mm female at 12.5 mm.

Item Type: Article
Uncontrolled Keywords: Dog-whelk; Nassastolata; Gmelin; Portonovo
Subjects: Molluscan Fisheries
Divisions: CMFRI-Cochin > Marine Capture > Molluscan Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Molluscan Fisheries
Depositing User: Dr. V Mohan
Date Deposited: 24 Aug 2010 07:10
Last Modified: 09 Sep 2015 15:17
URI: http://eprints.cmfri.org.in/id/eprint/2553

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