Mukesh P. Bhendarkar Rajiv H. Rathod Harshavardhan D. Joshi Upasana Sahoo


Investigation of fecundity and gonado somatic index (GSI) of Rastrelliger kanagurta were carried out from March 2011 to February 2012. Fecundity was determined at different length, weight and ovary ranges of different individual fishes. Study revealed that at 5% significant level significant average absolute fecundity was found to be 1,08,266 and relative fecundity ranged from 407 to 1499. The number of ova generally increased with increase in length and weight. However, variations in fecundity with respect to length and weight were also noticed. The gonado-somatic index (GSI) was calculated for each individual fish (592 numbers) and was averaged for each month. The average GSI values were plotted against each month to analysed monthly variations. GSI showed wide variations between sex and it was highest for both males and females during the month of April and September, showing occurrence of more ripe individuals. Analysis of regression showed that there were significant relationship between the fecundity with the fish length, body weight and ovary weight.


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Fecundity, Gonado Somatic Index (GSI), Indian Mackerel, Rastrelliger

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Bhendarkar, M. P., Rathod, R. H., Joshi, H. D., & Sahoo, U. (2018). Study on the Fecundity and Gonado somatic index of Rastrelliger kanagurta (Cuvier, 1817) of southern coast of Maharashtra, India. Journal of Applied and Natural Science, 10(1), 107-110. https://doi.org/10.31018/jans.v10i1.1588
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