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CYA-REMo: Cyanobacteria under climate change: looking into the past to predict the future through integration of resurrection ecology, experimental evolution and ecosystem modelling approaches

01.05.2021 - 30.04.2024
Project coordinated by:
University of Hamburg
Project manager (IOW):
Dr. Anke Kremp
DFG - Deutsche Forschungsgemeinschaft
Associated Institution:

Cyanobacteria are thriving in many aquatic systems and have recently increased in abundance.To shed light on the reasons for and the consequences of their success we will carry out resurrection, evolutionary and model experiments. We will 1) investigate whether cyanobacteria have evolved to warmer environmental conditions, 2) quantify their evolutionary potential to cope with even higher temperatures and 3) assess their potential to dominate future phytoplankton communities in a seasonally-varying and overall warmer environment by taking into account ecosystem and biogeochemical feedback mechanisms. This study is the basis for improved climate projections, that include the evolutionary response of key organisms.


  • Van de Waal, D. B., L. Bach, E. Berdalet, K. M. Brandenburg, S. Suikkanen, S. Wohlrab, P. J. Hansen and A. Kremp (2021). HABs under global change: Experimental conditions and approaches. In: Guidelines for the study of climate change effects on HABs. Ed. by GlobalHAB Scientific Committee. Paris: UNESCO-IOC/SCOR: 36-63, doi:
  • Kownacka, J., Busch, S., Göbel, J., Gromisz, S., Hällfors, H., Höglander, H., ...Kremp, A.,... & Olenina, I. 2021: Cyanobacterial biomass 2020.
  • Wood, S. M., A. Kremp, H. Savela, S. Akter, V.-P. Vartti, S. Saarni and S. Suikkanen (2021). Cyanobacterial akinete distribution, viability, and cyanotoxin records in sediment archives from the northern baltic sea. Front. Microbiol. 12: 681881, doi: 10.3389/fmicb.2021.681881