#Database_OTU Count Abundance Taxonomy 3489142 1 0.666667 Archaea; Crenarchaeota; MBGB; Unclassified; Unclassified; Unclassified; Unclassified; otu_3489142 1132732 1 0.333333 Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales; Desulfuromonadaceae; Desulfuromonas; Unclassified; otu_1132732