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.

[img]
Preview
PDF
33Kb

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
ID Code:543
Deposited By:Dr. V Mohan
Deposited On:13 May 2010 16:24
Last Modified:13 May 2010 16:24

Repository Staff Only: item control page