Changes in the microbial community of an anammox consortium during adaptation to marine conditions revealed by 454 pyrosequencing

The submitted dataset consists of pyrosequenced barcoded v4 16S rDNA amplicons representing freshwater anammox consortia that were adapted to salinities of 3 and 30 g/L NaCl. While adaption from 0 to 3 g/L salinity took 153 days, adaption from 3 to 30 g/L salinity took only 40 days, and no inhibition was observed. A major succession in the anammox community wasobserved at 3 g L-1 where the dominating population shifted from Ca. Brocadia fulgida to Ca. Kuenenia stuttgartiensis. The latter dominated at high salinity and seemed to be essential for the high (? 96%)ammonium and nitrite removal efficiencies achieved.