Fig. 2

Vertical distribution and phylogenetic affiliation of nitrifiers in lake Achensee (ACH), indicated as percentage of the total number of NGS-based 16S rDNA amplicon sequences based on DNA and cDNA data sets. “Nitrosomonadaceae” include genera other than Nitrosomonas and Nitrosospira (plot A). Taxa with a proportion of less than 0.1% of the total number of sequences are not shown. Water column profiles of ammonium, temperature and dissolved oxygen are shown in plot B.