Comparison of Goitre and Tang estuaries with respect to diversity and dominance of macrofauna

Abstract

Goitre and Tang me important estuaries in the systan and Baluchistan province and arcording to their freshwater sources arc divided Into two different classes. Goitre is flushed with water from Bahoukalat freshwater river during bigh tide of the Oman Sea but Tang recieves its water from the catchment area only in some month f the year (mostly december and january). Dense mangrove cover Goitre estuary causes the T. O. M. of sadiments to be higher than the other one. A comparison betyyterl several similar sites in these estuaries has shown that diversity of macroia min in Tang is greater than Goitre. Also dominant fauna in these. estuaries are different and it was demonstrated that we could establish a significant relationship between dominance and diameter of particles in the sediment .