Main research interest
I study the activity and presence of methane-oxidizing bacteria (i. e. methanotrophs) in aquatic environments with low oxygen concentrations. My study sites include a stratified (freshwater) lake in Switzerland, the Benguela upwelling system off the coast of Namibia, and coastal seagrass meadows in the Mediterranean Sea.
For my studies I use a number of different methods, including:
- Molecular methods such as CARD FISH
- Stable isotope labelling experiments and rate measurements
- Visualization of single cell activities by nanoscale secondary ion mass spectrometry (nanoSIMS)
- On-site measurements of methane and nitrous oxide concentrations on the water column