The hadal zone stretches from 6 to 11 km of ocean depth and is one of the most remote, extreme, and scantly explored habitats on Earth. However, recent technological advances and the intensified search for new marine resources have stimulated hadal research and the number of publications on hadal issues is increasing rapidly. This multidisciplinary session would like to invite researchers with hadal interests to discuss recent advantages, synergies and emerging challenges across a broad range of topics covering geology, oceanography, biology and biogeochemistry. We also encourage contributions on deep sea technical advances and high-pressure research.
Primary Chair: Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense M, Denmark
Co-chairs: Frank Wenzhofer, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, HGF-MPG Joint Research Group for Deep-Sea Ecology and Technology, Bremerhaven, Germany, Matthias Zabel, Univ Bremen, Bremen, Germany and Douglas H Bartlett, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Primary Liaison: Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense M, Denmark
Moderators: Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense M, Denmark and Douglas H Bartlett, University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Student Paper Review Liaison: Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense M, Denmark
Autonomous hadal benthic lander for in situ tracer incubations and sediment recovery to study benthic community activities (645126)
Johannes Lemburg, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, Frank Wenzhofer, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, HGF-MPG Joint Research Group for Deep-Sea Ecology and Technology, Bremerhaven, Germany, Morten Larsen, University of Southern Denmark, Department of Biology, Odense, Denmark, Bo Thamdrup, University of Southern Denmark, Odense, Denmark and Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense M, Denmark
Benthic nitrogen cycling in hadal trenches: High rates and large contributions from anammox (642857)
Bo Thamdrup1, Clemens Schauberger1, Morten Larsen1, Anni Glud1, Frank Wenzhofer2 and Ronnie N Glud3, (1)University of Southern Denmark, Department of Biology, Odense, Denmark, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, HGF-MPG Joint Research Group for Deep-Sea Ecology and Technology, Bremerhaven, Germany, (3)University of Southern Denmark, Department of Biology, Odense M, Denmark
Plankton Respiration in the Ultradeep Waters over the Atacama Trench: Implications for Particulate Organic Carbon Sequestration (652764)
Igor Fernandez-Urruzola, Universidad de Concepcion, Millennium Institute of Oceanography, Concepción, Chile, Osvaldo Ulloa, Universidad de Concepción, Concepción, Chile, Wolfgang Schneider, Millennium Institute of Oceanography (IMO) and Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile, Ronnie N Glud, University of Southern Denmark, Department of Biology, Odense M, Denmark, Xinxin Li, Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China and Ruben Escribano, Instituto Milenio de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile
Food Web Structure in the Mariana and Kermadec Trenches from Stable Isotope Analysis (650656)
Andrew Tokuda, University of Hawaii at Manoa, Department of Oceanography, Honolulu, United States, Mackenzie Gerringer, State University of New York at Geneseo, HI, United States, Brian N Popp, University of Hawaiʻi at Mānoa, Department of Earth Sciences, Honolulu, United States, Natalie Wallsgrove, University of Hawaii at Manoa, Department of Earth Sciences, Honolulu, United States, Eleanna Grammatopoulou, University of Aberdeen, Aberdeen, United Kingdom, Daniel Mayor, National Oceanography Center, Soton, Southampton, United Kingdom and Jeffrey Drazen, University of Hawai'i at Mānoa, Department of Oceanography, Honolulu, United States
Tracking Environmental Change of the Hadal Zone of the Yap Trench: from Variations of Biogeochemical Parameters in the Sediment and Seawater (641998)
Haibing Ding1, Yuhuan Huang1, Chaonan Guo2, Jiaohong Niu2, Gehui Li2, ChengJun Sun3 and Guipeng Yang4, (1)Ocean University of China, Qingdao, China, (2)Ocean University of China, Marine Chemistry, Qingdao, China, (3)First Institute of Oceanography, Ministry of Natural Resources, Marine Resources and Environment Research Center, Qingdao, China, (4)Laval University, Quebec-Ocean, Quebec City, QC, Canada
