Ecotoxicology concerns the fate, uptake and effects of anthropogenic contaminants in the environment, and ultimately, the risk activities releasing theses contaminants pose to ecosystems. The research in our group emphasises the ecological and environmental aspects of these issues. We study how ecological and environmental parameters and processes, f ex those affected by eutrophication or climate change, influence fate and uptake of contaminants with different properties. Our main research focus concerning effects is how individual-level effects of contaminants translate to effects on populations, communities and ecosystems. Ultimately, predictions and validations of these levels of effects are paramount for performing ecological risk assessments, where the protective goals are on population-level or above.