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Table 2 Unique and shared richness of microbial communities

From: Functional microbial diversity explains groundwater chemistry in a pristine aquifer

  Bacteria Archaea
  ATTa SUSb ATTa SUSb
Total OTUsc 2,072 1,216 60 266
Normalized OTUsd 1,243 55
% OTUs shared 12% 13% 31% 6%
% Sequences in Shared OTUs 37% 31% 90% 22%
  1. a ATT = Microbial communities attached to in situ samplers.
  2. b SUS = Microbial communities suspended in groundwater.
  3. c Operational taxonomic units (OTUs) calculated using a cutoff of 97% average nucleotide similarity.
  4. d The number of OTUs found in a randomized subset of n sequences where = the number of suspended samples. This was done to account for the greater number of ATT sequences among both bacteria and archaea.