MATURITY AND SPAWNING OF THE ANCHOVY, THRISSINA BAELAMA (FORSKAL) FROM THE ANDAMAN SEA


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Authors

  • R Marichamy Central Marine Fisheries Research Institute; Unit, Port Blair

Abstract

The occurrence of mature and spent specimens of Thrissina baelama in different size
groups indicated that the fish matures at an average length of 117 nun (TL). This is supported
by the results obtained from the study of ponderal index. While the immature
females showed a more or less direct relationship between 'Kn' values and feeding activity,
the mature females showed some deviations during certain months. The study of ova diameters
has shown that the species spawns twice in a year. Spawning appears to be of short
duration and the whole stock of mature ova measuring 0,57-0.84 nun in diameter are
extruded during the spawning. Two spawning seasons in a year were observed and these
coincided with the two monsoons, during July-August and late November-January.
Fecundity ranged between 1171 and 3356 ova in a fish size range of 110-127mm. Logarithmic
regressions described the relationship between fecundity and weight of fish and
fecundity and weight of ovary.

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Author Biography

  • R Marichamy, Central Marine Fisheries Research Institute; Unit, Port Blair
    Central Marine Fisheries Research Institute; Unit, Port Blair

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Issue

Vol. 17 No. 1 & 2 (1970)

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

Marichamy, R. (2011). MATURITY AND SPAWNING OF THE ANCHOVY, THRISSINA BAELAMA (FORSKAL) FROM THE ANDAMAN SEA. Indian Journal of Fisheries, 17(1 & 2), 179-187. https://epubs.icar.org.in/index.php/IJF/article/view/13213