Journal of the Marine Biological Association of India

Aspects of the reproductive biology of the mullet Valamugil cunnesius in Karachi-Sind waters.

Volume 35 Issue 1&2

S. M. Shamsul Hoda and Naeemullarh Quershi

Abstract

Reproductive characteristics of Valamugil cunnesius from Karachi-Sind waters were examined in 1983 and seven stages of gonadal maturity are described. Males and females are sexually nature for the first time at 90-99 mm SL. Sex ratio is not significantly different from 1:1. Frequency distribution of ova diameter is suggestive of two spawning in a year from April to July and December, which also tallies with the higher GSI values during these seasons. Predictive equations between fecundity and standard length, body weight, ovary weight and ovary length are provided.

Date : 31-10-1993