• Research blog
Tuesday, 17. February 2026

Hydrological regime of a continental river system predicts bacterial macroecological patterns

Recent Publication


 

A recent multi-centre study shows that the hydrological regime of a large river system significantly determines the macroecological patterns of bacteria. Bacterial production, cell counts and genetic diversity were analysed in two comprehensive surveys - six years apart - along 2,600 kilometres of the Danube. The results show that water residence time in particular is a key factor for the growth, exchange and diversity of microbial communities, while environmental conditions also modulate local effects. Assoc. Prof. PD Dr Alexander Kirschner and Univ. Prof. PD Dr Andreas Farnleitner MSc from the Department of Water Quality and Health at KL played a key role in the work.

Demeter, K., Savio, D., Kirschner, A. K. T., Reischer, G. H., Kolarevic, S., Parajka, J., Derx, J., Jakwerth, S., Wurzbacher, C., Blaschke, A. P., Mach, R. L., Blöschl, G., Farnleitner, A. H., & Eiler, A. (Angenommen/Im Druck). Hydrological regime of a continental river system predicts bacterial macroecological patterns. ISME Journal. https://doi.org/10.1093/ismejo/wrag013

Univ.-Prof. PD Dr. Andreas Farnleitner MSc

Univ.-Prof. PD Dr. Andreas Farnleitner MSc

Head of
Department of Water Quality and Health

Assoc. Prof. PD Mag. Dr. Alexander Kirschner

Assoc. Prof. PD Mag. Dr. Alexander Kirschner

Scientific Staff (Sen. PostDoc)
Department of Water Quality and Health