[1] Univ Vienna, Dept Funct & Evolutionary Ecol, Archaea Biol & Ecogenom Unit, Vienna, Austria
[2] Univ Vienna, Fac Earth Sci Geog & Astron, Dept Geog & Reg Res, Vienna, Austria
[3] Univ Greifswald, Hiddensee Biol Stn, Greifswald, Germany
[4] Univ Zurich, Dept Plant & Microbial Biol, Microbial Evogenom Lab, Limnol Stn, Zurich, Switzerland
[5] Czech Acad Sci, Inst Hydrobiol, Dept Aquat Microbial Ecol, Biol Ctr, Ceske Budejovice, Czech Republic
[6] Univ Greifswald, Inst Microbiol, Greifswald, Germany