Table 1 Contribution of ubiquitous Operational Taxonomic Units (OTUs) to the microbial communities from borehole water collected from four anoxic boreholes in the Opalinus Clay at the Mont Terri rock laboratory. Taxonomic affiliation and expected metabolism type are indicated. Total contribution of the 13 ubiquitous OTU’s to each borehole community is indicated for each sample (last row). Colours indicate the fraction of the OTU’s in each borehole (green 0.5–1.0; yellow 0.01–0.5; red 0–0.01) (Modified from Bagnoud (2015))
