Benthic nitrogen cycling in hadal trenches: High rates and large contributions from anammox

Bo Thamdrup1, Clemens Schauberger1, Morten Larsen1, Anni Glud1, Frank Wenzhofer2 and Ronnie N Glud1, (1)University of Southern Denmark, Department of Biology, Odense, Denmark, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, HGF-MPG Group for Deep Sea Ecology and Technology, Bremerhaven, Germany