ESTIMATES OF MORTALITY AND YIELD PER RECRUIT OF 'GHOL' PSEUDOSCIAENA DIACANTHUS (LACEPEDE)
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Abstract
The mortality rate and yield per recruit of 'ghoV, Pseudosciaena diacanthus, areestimated from the age composition of catches of the bull-trawlers of the New India
Fisheries Ltd., Bombay, for the years 1958 to 1961.
The annual mortality rate estimated from (1) catch per unit effort data and (2) the
average catch curve of 1958-'61 lies roughly between 0.55 and 0.60 and the instantaneous
mortality rate between 0.83 and 0.87. Since the fishery for 'ghol' was at the beginning
stage with only two pairs of bull-trawlers operating commercially, the estimated
total mortality rate (Z=0.83) is regarded as practically equal to natural mortality
rate (M).
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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
Rao, K. V. S. (2011). ESTIMATES OF MORTALITY AND YIELD PER RECRUIT OF ’GHOL’ PSEUDOSCIAENA DIACANTHUS (LACEPEDE). Indian Journal of Fisheries, 15(1 & 2), 88-98. https://epubs.icar.org.in/index.php/IJF/article/view/13279