In the present study, microbial communities of</p><p>sponges, Sediments and Seawater inhabiting</p><p>coral reef ecosystems were investigated using</p><p>barcoded pyrosequencing of 16S rRNA gene</p><p>amplicons. Our main goals were to compare the</p><p>bacterial and archaeal richness and composition of sponge species, sediment and seawater</p><p>inhabiting coral reef systems. FLX 454 titanium pyrosequencing study.