Abstract
A study was conducted on the length-weight relationship, condition factor and frequency distribution pattern of 120 fishes
representing two genera and four species of family Gobiidae. Fish samples were collected monthly during November 2009 to October
2010 from the landing specimens at Korangi fish harbour of Karachi Coast. In years 2009-2010, the total catch samples (N=120)
contained 8.3% Gobius occelatus, 40.8 % of G. biocellatus, 25.0% of G.viridipunctatus and 25.0% of Glossogobius giuris. In the
month of December 2009, total catch samples of four species constituted 60.0% and the total catch samples, in the month of April
(2010) they constituted 22.86% dominating all other samples collected during other months of these two years. Glossogobius giuris
66.6% was abundant in total catch of year 2009. While Gobius biocellatus constituted 40.8% total catch, was dominant in catch of
both years and Gobius occelatus constituted 8.3% of total catch was very rare. The regression coefficient (b) value of 3.45 and 3.18
for G. biocellatus and Glossogobius giuris slightly higher than 3 revealed that growth is positive allometric. The (b) value of 2.9 for
G. viridipunctatus being not much less than ideal value 3.0, showed the isometric pattern of growth. The very high values of r² were
obtained between total length and standard length. The values of condition factor (K) for four species were also determined.
