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


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Authors

  • K K Sukumaran School of Ocean Sciences, Kodibag, Karwar - 521 303, India
  • B Neelakantan School of Ocean Sciences, Kodibag, Karwar - 521 303, India

Abstract

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

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Author Biographies

  • K K Sukumaran, School of Ocean Sciences, Kodibag, Karwar - 521 303, India
    School of Ocean Sciences, Kodibag, Karwar - 521 303, India
  • B Neelakantan, School of Ocean Sciences, Kodibag, Karwar - 521 303, India
    School of Ocean Sciences, Kodibag, Karwar - 521 303, India

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Submitted

2011-08-10

Published

2017-03-31

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Section

Articles

How to Cite

Sukumaran, K. K., & Neelakantan, B. (2017). 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), 257-264. https://epubs.icar.org.in/index.php/IJF/article/view/8707