Bioindication in lakes and running waters  

• Ecology and special-temporal dispersal of diatoms
• Principles of phytoplankton and phytobenthos development in lakes and running waters
• Identification of dispersal optima of important taxa
• Classification of water bodies, bioindication based on algae (main focus: diatoms)
• Investigation of taxonomic classification of selected taxa (Centrales, Pennales)

Paleolimnology 

• Diatom analyses in lake sediments
• Compilation of a local diatom - TP - training set; improvement of utilization of local and regional merged data sets
• Reconstruction of lake development based on paleolimnologic multi-proxy studies

Phytoplankton succession in running waters 

• Structure and dynamic of potamoplankton assemblages in response to abiotic, biotic and hydrologic parameters
• Saisonal and longitudinal development of phytoplankton
• Phytoplankton - phytobentos interaction