My research focuses on the ecological impacts of the bloom-forming cyanobacterium Planktothrix rubescens. My primary aim is to better understand how P. rubescens influences nutrient cycling in lakes. I characterize the key microbial degraders driving biomass turnover during bloom collapse and use comparative metagenomics across Swiss lakes to assess how community composition and functional potential vary among systems. In addition, I apply proteomics to gain insight into the survival strategies of P. rubescens during winter water tunrovers. My work integrates field sampling, laboratory experiments, and bioinformatic analyses to better understand bloom dynamics and their implications for freshwater ecosystem functioning and water safety.