Journal of the Marine Biological Association of India

Observations on some aspects of biology of Johnius (Johnieops) vogleri (Bleeker) and Pennahia macrophthalmus (Bleeker) in the Kakinada region.

Volume 28 Issue 1&2

V. Sriramachandra Murty and P. Ramalingam

Abstract

The length-weight relationship in J. vogleri and P. macrophthalmus can be described by the equations log W=-5.08923+3.07931 log L and log W—4.63735+2.89703 log L respectively. The length at first maturity in J. vogleri is estimated as 190 mm and in P. macrophthalmus as 147 mm. These two species appear to spawn at least twice in a year during protracted spawning periods: November-June in J. vogleri and October - June in P. macrophthalmus.

Date : 31-12-1986