Maturation process and reproductive cycle in two marine crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) along the Karnataka coast

Sukumaran, K K and Neelakantan, B (1998) Maturation process and reproductive cycle in two marine crabs, Portunus (Portunus) sanguinolentus (Herbst) and Portunus (Portunus) pelagicus (Linnaeus) along the Karnataka coast. Indian Journal of Fisheries, 45 (3). pp. 257-264.

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Abstract

In the development of ovary of Portunus (Portunus) sanguinolentus and P. (P.) pelagicus, six maturity stages have been recognised by gross examination, i.e., immature virgins, immature resting, early maturing, late maturing, mature and spent. By microscopical studies, nine arbitrary stages have been identifed in the maturation process of ovary. In the development of testis, three maturity stages have been discernible, i. e., immature, maturing and mature. The spawning season is exended from August to May in both the species with intensive activity during December-February in the former and during January-February and September in the latter species.

Item Type: Article
Uncontrolled Keywords: Marine crabs; Portunus sanuinolentus; Portunus pelagicus; reproductive system
Subjects: Crustacean Fisheries > Crabs
Divisions: CMFRI-Cochin > Marine Capture > Crustacean Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Crustacean Fisheries
Depositing User: Dr. V Mohan
Date Deposited: 17 Mar 2010 05:16
Last Modified: 09 Sep 2015 15:05
URI: http://eprints.cmfri.org.in/id/eprint/177

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