Institute for Biodiversity and Ecosystem Dynamics (IBED) of University of Amsterdam, invite applications for a PhD candidate in Marine Microbial Ecology in the Department of Freshwater and Marine Ecology. Our institute is one of the eight research institutes of the Faculty of Science at the University of Amsterdam. IBED covers a wide range of subjects in ecology, earth sciences and environmental sciences, including both fundamental and applied research. As PhD candidate you will work in the Department of Freshwater and Marine Ecology (FAME), headed by Prof. Jef Huisman. Our scientific studies aim at a better understanding of aquatic ecosystems at all relevant levels, from genes to climate change, using a truly multi-disciplinary approach. The project will be supervised by Dr Susanne Wilken, and aims to investigate predatory lifestyles in marine phytoplankton and their role in the microbial food webs of the ocean.