Length-weight relationship and relative condition factor of Liza subviridis (Valenciennes, 1836) in Pinang River Estuary, Balik Pulau, Penang, Malaysia

Abstract

Length-weight relationship and relative condition factor (Kn) of greenback mullet Liza subviridis (Valenciennes, 1836) were estimated from 2286 samples (635 males and 1651 females) collected from the Pinang River Estuary, Balik Pulau, Penang from March 2013 to February 2014. The length-weight relationship and growth pattern were: W = 0.0117 L2.9989 (isometric) for pooled samples (male and female together), W = 0.0157 L2.8787 (negative allometric) for males and W = 0.0109 L3.0284 (isometric) for females. Independent t-test showed that female b value was higher than that of the males (p<0.05) with no significant difference between the wet and dry seasons (independent t-test, p>0.05). The mean Kn of L. subviridis was 1.01±0.13; however, no significant difference was detected between wet and dry seasons and between male and female samples (independent t-test, p>0.05).