STUDIES ON THE SPAWNING BIOLOGY OF THE TRENCHED SARDINE, SARDINELLA SIRM (WALBAUM), FROM VIZHINJAM, SOUTH-WEST COAST OF INDIA


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Authors

  • S Lazarus Central Marine Fisheries Research Institute, Cochin - 682 031, India

Abstract

Development of ova to maturity and the duration and frequency of spawning indicated that Sardinellasirm would spawn not only in spurts but also nonsynchronically. Presence of more than two distinctbatches of ova in the ovaries indicated that the fish spawns twice in a season. The spawning season extendedfrom December to February off Vizhinjam. Females attained maturity at a larger size than males.The minimum size at first maturity was found to be 175-179 mm for males and 180 -184 mm for females.The overall sex-ratio was unequal and females predominated from 105 mm size onwards. Fecundityshowed a wide range of variation from 21.5 to 132.9 thousands. The spawning migration of the fish towardsthe inshore waters off Vizhinjam was observed

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Author Biography

  • S Lazarus, Central Marine Fisheries Research Institute, Cochin - 682 031, India
    Central Marine Fisheries Research Institute, Cochin - 682 031, India

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Issue

Vol. 37 No. 4 (1990)

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

Lazarus, S. (2011). STUDIES ON THE SPAWNING BIOLOGY OF THE TRENCHED SARDINE, SARDINELLA SIRM (WALBAUM), FROM VIZHINJAM, SOUTH-WEST COAST OF INDIA. Indian Journal of Fisheries, 37(4), 335-346. https://epubs.icar.org.in/index.php/IJF/article/view/10551