Department Surface Waters - Research and Management

Biogeochemistry

The Biogeochemistry Group at Eawag Kastanienbaum studies biogeochemical processes in lakes and marine systems.
We have three main foci:

  • Investigating the process of aerobic and anaerobic methane oxidation in sediments and water columns of lacustrine systems
  • Methanogenesis in dependence on organic material origin
  • Using stable isotopes including compound specific isotopes on amino acids and fatty acids on fish muscle to reconstruct food and trophic positions in lakes in Switzerland and river and fjords in Greenland
  • Reconstructing food webs between aquatic and terrestrial environments (BGB project)

Contact

Current Projects

This project contributes to the Blue Green Biodiversity Research Initiative – an Eawag-WSL collaboration focusing on Biodiversity at the interface of aquatic and terrestrial ecosystems.
We try to understand the bulk and compound specific carbon and nitrogen isotopic compositions in food chains.
We investigate how the origin of the organic material determines methane production.
We investigate the process of anaerobic methane oxidation in the water column of different lake systems.