Induced spawning and larval rearing of sea urchin Echinometra mathaei (de Blainville, 1825)

Jean Jose, J and Lipton, A P and Anil, M K (2007) Induced spawning and larval rearing of sea urchin Echinometra mathaei (de Blainville, 1825). Journal of the Marine Biological Association of India, 49 (2). pp. 230-233.

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Abstract

Induced spawning of the sea urchin Echinometra mathaei was accomplished by injecting 0.5 M KCl. The larval developmental stages were studied in the laboratory for 22 days by which time the larvae reached competency. The survival of larvae was 79.0 + 2.08% when fed with microalgae Isochrysis galbana in combination with Chaetoceros calcitrans. The survival was 77.0 + 1.73% when fed with I. galbana diet. Comparatively low survival rate of 60.0 + 2.52% and 40.0 + 2.0% were observed while feeding with C. calcitrans and Nannochloropsis sp. respectively at the competent stage

Item Type: Article
Uncontrolled Keywords: Induced spawning; Larval rearing; sea urchin; Echinometra mathaei
Subjects: Echinoderms > sea Urchin
Divisions: CMFRI-Cochin > Marine Capture
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture
Depositing User: Dr. V Mohan
Date Deposited: 09 Aug 2010 11:15
Last Modified: 09 Sep 2015 15:15
URI: http://eprints.cmfri.org.in/id/eprint/2145

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