Peter Stief

Peter Stief is an Associate Professor at the University of Southern Denmark, affiliated with Nordcee and the Department of Biology. His research focuses on the fate of marine snow particles in deep-sea environments, particularly how hydrostatic pressure influences microbial degradation and organic matter preservation in hadal trenches. He uses rotating pressure tanks to simulate deep-sea conditions and quantifies microbial activity through oxygen measurements.

Research Interests:

• Biogeochemical processes in deep-sea environments
• Microbial adaptation to extreme pressure conditions
• Carbon and nitrogen cycling in marine ecosystems
• Role of zooplankton and diatoms in organic matter export

Recent work highlights the critical role of pressure in inhibiting microbial activity, thereby enhancing carbon sequestration in trenches. Articles emphasize methodological innovations like high-pressure tank experiments and interdisciplinary approaches linking microbial physiology to large-scale biogeochemical cycles.

No awards or grants are explicitly listed, but his work has contributed to understanding climate-relevant carbon sequestration mechanisms in the deep ocean.