Estimated OTU richness, diversity indices and estimated sample coverage for SSU rRNA libraries calculated with DOTUR0.03.

aNumber of sequences for each library.bCalculated with DOTUR at the 3% distance level.cEstimated sample coverage: Cx = 1-(Nx/n), where Nx is the number of unique sequences and n is the total number of sequences [55], [56].dCalculated by merging the two above libraries.PO: region influenced by port activity and sewage disposal. RE: open ocean region. S: surface. F: bottom.