#Database_OTU Count Abundance Taxonomy 4418110 1 0.166667 Archaea; Crenarchaeota; MBGB; Unclassified; Unclassified; Unclassified; Unclassified; otu_4418110 2214064 5 0.833333 Bacteria; Proteobacteria; Deltaproteobacteria; Desulfarculales; Desulfarculaceae; Desulfatiglans; Unclassified; otu_2214064