ESTIMATES OF MORTALITY, POPULATION SIZE AND YIELD PER RECRUIT OF NEMIPTERUS JAPONICUS (BLOCH) IN THE TRAWLING GROUNDS OFF KAKINADA


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Authors

  • V Sriramachandra Murty Central Marine Fisheries Research Institute R-C, Kakinada

Abstract

The mortality rates of N. japonicus are estimated from annual age composition
of fish caught by trawlers. The estimated values are Z = 1.86, F = 0.72
and M = 1.14. The exidoitatlon rate (U) is estimated at 0.33 and the total
annual stock at 1181 tonnes. The yield curve shows that the fishing mortality can
be increased from the present level of 0.72 to 1.75 to get increased yield.

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Author Biography

  • V Sriramachandra Murty, Central Marine Fisheries Research Institute R-C, Kakinada
    Central Marine Fisheries Research Institute R-C, Kakinada

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Issue

Vol. 30 No. 2 (1983)

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

Murty, V. S. (2011). ESTIMATES OF MORTALITY, POPULATION SIZE AND YIELD PER RECRUIT OF NEMIPTERUS JAPONICUS (BLOCH) IN THE TRAWLING GROUNDS OFF KAKINADA. Indian Journal of Fisheries, 30(2), 255-260. https://epubs.icar.org.in/index.php/IJF/article/view/11861