#Database_OTU Count Abundance Taxonomy 2214064 2 0.666667 Bacteria; Proteobacteria; Deltaproteobacteria; Desulfarculales; Desulfarculaceae; Desulfatiglans; Unclassified; otu_2214064 720511 1 0.333333 Archaea; Crenarchaeota; Thaumarchaeota; Nitrososphaerales; Nitrososphaeraceae; Candidatus_Nitrososphaera; Unclassified; otu_720511