Additionally, we study how microbes in the Anthropocene act as sinks or sources of various greenhouse gases.

Deep-Sea Research
Exploring life in oceanic trenches
While the surface of the Earth has been mapped and its ecosystems explored in great detail, the deep sea remains virtually unexplored due to remoteness and extreme conditions. Developing and using a novel in situ technology, we discovered that, in particular, the hadal trenches—deeper than 6000m—are a hotspot for biological activity despite the long distance from the productive surface ocean. We are exploring the diversity and activity of life in the seafloor exposed to extremely high hydrostatic pressure, low temperatures and complete darkness. Surprisingly, pollutants can be traced into these remote environments, which implies that this mare incognitum is a closely integrated part of the Earth system and in several ways affected by anthropogenic impacts.
KEY RESEARCH AREAS​
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Carbon and nitrogen cycling
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Pelagic-benthic coupling
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Biogeochemical processes
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Transport of particulate matter / marine snow
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In situ sensing and incubation technology
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High-pressure physiology
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Effects of pressure on processing and microbial life
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Microbial and viral genomics
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Pollutants
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Deep-sea mining
FUNDING and PROJECTS (last 5 years)
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DNRF Center: HADAL
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EU Horizon Europe: Innovating Sediment Oxygen Consumption Quantification: A Novel Proxy Utilizing Marine Bacterial Tetraether Lipids (SOCGDGT)
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DFF Sapere Aude: Novel Approach for Quantifying Benthic Deep-Sea Oxygen Dynamics Across Space and Time
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EU/Fiskerirådet, Cumulative Effects on Mussel farming
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FORMAS, Where on Earth do persistent organic pollutants go? (HADAL-POP)
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Novo Nordisk, Understanding bacterio-pahge behavior through the lens of the bacterial host population
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PERSONNEL (A-Z)
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Karl ATTARD, Associate Professor (carbon cycling in polymetallic nodule ecosystems)
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Yen-Ting CHEN, PhD student (microbial ecology, biogeography, biogeochemistry, bioinformatics)
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Anni GLUD, Laboratory technician (in situ tech)
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Ronnie N. GLUD, Professor (in situ tech, transport, biogeochemistry, high-pressure studies, pollutants)
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Morten ALITOUCHE KIELER, Engineering Assistant (pressure tanks)
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Mathias MIDDELBOE, Adjunct Professor (viral genomics)
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Kazumasa OGURI, Associate Professor (Sedimentology; carbon sequestration; Development of in situ instruments)
- Peter STIEF, Associate Professor (marine snow, deep-sea carbon cycling, high-pressure instruments)
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Bo THAMDRUP, Professor (microbiology, biogeochemistry)
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Sachia TRAVING, Postdoc (bacteriophages, C-,N-,S-cycle, bioinformatics, culture work, viral ecology)
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Blandine TROUCHE, Postdoc (microbial ecology, biogeography, archaea)
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Frank WENZHÖFER, Professor (high-pressure instrumentation)
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Wenjie XIAO, Postdoc (lipids, isotopes, carbon cycle)

Image rights: Ronnie Glud