Stock assessment of Metapenaeus monoceros (Fabricius) from Cochin waters, Kerala


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Authors

  • G Nandakumar Central Marine Fisheries Research Institute, Cochin - 682 014, India
  • M Srinath Central Marine Fisheries Research Institute, Cochin - 682 014, India

Abstract

Based on the catch and effort, and length distribution data of Metapenaeus
monoceros landed by shrimp trawlers at Cochin Fisheries Harbour during
1991 - 93, an attempt has been made to assess the stock of this species in the
Cochin waters. The average annual instantaneous rate of total mortality was
estimated 7.06 and 7.75 for females and males respectively. The estimated value
of annual natural mortality (M) was 2.35 and it was assumed to be the same for
both sexes. The estimate of fishing mortality rate (F) was 4.71 for females and
5.40 for males of M. monoceros. The average rate of exploitation (E) was 0.70
and 0.67 respectively for males and females. The average standing stock size of
M. monoceros for the period under study was 10.55 t for males and 28.65 t for
females. The Thomson and Bell and the Beverton and Holt yield per recruit
routines in the LFSA are used to explain the present status of fishery which shows
that there is no adverse effect of fishing on the exploited stock of M. monoceros
from the southwest coast off Cochin.

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Author Biographies

  • G Nandakumar, Central Marine Fisheries Research Institute, Cochin - 682 014, India
    Central Marine Fisheries Research Institute, Cochin - 682 014, India
  • M Srinath, Central Marine Fisheries Research Institute, Cochin - 682 014, India
    Central Marine Fisheries Research Institute, Cochin - 682 014, India

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Issue

Vol. 46 No. 3 (1999)

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

Nandakumar, G., & Srinath, M. (2011). Stock assessment of Metapenaeus monoceros (Fabricius) from Cochin waters, Kerala. Indian Journal of Fisheries, 46(3), 221-226. https://epubs.icar.org.in/index.php/IJF/article/view/8601