Table S1. In this table we present the raw data regarding nitrate and hydrogen sulfide concentrations as well as dark carbon dioxide fixation measured directly in samples from Baltic Sea redox gradients. As secondary data we deduced flow rates by Eddy diffusion of nitrate and hydrogen sulfide from the measured concentrations and depths. n.d., not determined.


Table S2. In this table we present prokaryotic cell numbers determined by epifluorescence microscopy throughout a typical Baltic Sea redox gradient. Overall, cell numbers were determined by DAPI staining, whereas eubacterial (EUB) and GD17 cell numbers were determined by CARD-FISH. GD17 cells contribute by 17% to the total prokaryotic community at the chemocline at 87.5 m water depth.

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.