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Ocean BioGeosciences
a.lichtschlag at



I am a benthic biogeochemist in the OceanBiogeosciences Group (OBG) and I lead the Marine Ecosystem Processes (MEP) Subgroup. My research centres around the biogeochemistry of marine sediments and sediment-water exchange processes with a focus on connections between different element cycles, e.g. the carbon, sulphur, metal and nutrient cycles and the drivers of early diagenetic processes. My main research goals are to better understand the impact of external stressors (natural and anthropogenic) on the benthic environment. My recent work in the UKRI Future Leaders Fellowship "Sandman" focusses on the development of new technologies and approaches to autonomously measure porewater gradients and benthic-pelagic exchange fluxes to improve our understanding of the marine biogeochemical cycling, especially in undersampled and more challenging coastal and marine environments.


Topics of interest include:

  • Biogeochemical processes in coastal sediments, with a focus on the carbon, nutrient and metal cycles and sediment-water exchanges
  • Development of new technologies for benthic biogeochemistry and sediment-water fluxes
  • Fluid-sediment interactions and biogeochemical alterations in deep and shallow hydrothermal sediments and cold seeps
  • Biogeochemical and ecological impact and monitoring strategies for seepage from sub-seafloor CO2 and H2 storage



  • since 2023         Lead of Marine Ecosystem Processes Subgroup (OceanBiogeosciences Group)
  • since 2016         Senior Researcher, NOC Southampton
  • 2012-2016         Postdoctoral Research Associate, NOC Southampton
  • 2009-2012         Postdoctoral Research Associate, Max-Planck-Institute for Marine Microbiology, Bremen, Germany
  • 2005-2009         PhD Research Associate, Max-Planck-Institute for Marine Microbiology, Bremen, Germany
  • 1997- 2005        Diplom (equivalent to MSc) in Geology and Palaeontology, Friedrich-Alexander-University Erlangen-Nuremberg, Germany