Reproductive biology of the sand lobster Thenus orientalis (Lund) from Bombay waters


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Authors

  • P V Kagwade Bombay Research Centre of Central Marine Fisheries Research Institute, Bombay - 400 023
  • L M Kabli Bombay Research Centre of Central Marine Fisheries Research Institute, Bombay - 400 023

Abstract

Males and famales of Thenus orientalis were observed to mature at about 107 mm in total length. The ovary in the immature stage in May progressed to maturity and the female got berried by September. A definite spawning period was witnessed between September and April covering a major peak in November aLd a minor in March. An individual spawned twice in a year. Segregation of sexes was not conspicuous at any particular size or month. There was a marginal preponderance of negligible nature of one sex or the other. Males lbove 230 mm and females above 250 mm were not contributing to the fishery. Fecundity showed a linear relationship between the number of eggs and the length of the lobster. A female of 165 mm produced 22,050 eggs whlle another of 240 mm produced 53,280 eggs.

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Author Biographies

  • P V Kagwade, Bombay Research Centre of Central Marine Fisheries Research Institute, Bombay - 400 023
    Bombay Research Centre of Central Marine Fisheries Research Institute,
    Bombay - 400 023
  • L M Kabli, Bombay Research Centre of Central Marine Fisheries Research Institute, Bombay - 400 023
    Bombay Research Centre of Central Marine Fisheries Research Institute,
    Bombay - 400 023

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Issue

Vol. 43 No. 1 (1996)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Kagwade, P. V., & Kabli, L. M. (2012). Reproductive biology of the sand lobster Thenus orientalis (Lund) from Bombay waters. Indian Journal of Fisheries, 43(1), 13-25. https://epubs.icar.org.in/index.php/IJF/article/view/8974