The aim of my project is to investigate physiological adaptions and primary production in Arctic pelagic and sympagic algae to current and future environmental changes (e.g. light availability and carbonate chemistry). More specifically, I want to follow photo-physiological adaptions during the spring bloom as well as the pre-bloom and post bloom phases. Dominant pelagic and sympagic species will be used in incubation experiments under different climate change scenarios. The overall goal is to contribute to a mechanistic understanding of correlations between environmental conditions and bloom initialization, primary production and ecophysiology.