Mortality rates and yield per recruit of catfish Tachysurus tenuispinis (Day)

Dan, S S (1981) Mortality rates and yield per recruit of catfish Tachysurus tenuispinis (Day). Indian Journal of Fisheries, 28 (1&2). pp. 41-46.

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Abstract

The mortality rates and yield per recruit of the catfish, Tachysurus tenuispinis are estimated from mean sizes and age composition. The total instantaneous mortality rate ramges between OJ80 and 1.10. The natural mortality (M) was 0.5.1. The yield per recruit. YW/iR was maximum when F = 0.3. As the fishing mortality (F) already generated is considerable, caution is indicated against stepping up the fishing effort aay further to increase the catch of th& species.

Item Type: Article
Uncontrolled Keywords: Mortality rates; catfish; Tachysurus tenuispinis
Subjects: Demersal Fisheries > Catfish
Divisions: CMFRI-Cochin > Marine Capture > Demersal Fisheries
Subject Areas > CMFRI Brochures > CMFRI-Cochin > Marine Capture > Demersal Fisheries
Depositing User: Dr. V Mohan
Date Deposited: 13 May 2010 10:54
Last Modified: 09 Sep 2015 15:07
URI: http://eprints.cmfri.org.in/id/eprint/543

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