My research interests concerns broadly aquatic ecology ranging from basic research question within behavioral and food web ecology to applied issues in fisheries biology and water management. I have been working in different environments from streams and ponds to lakes and coastal marine habitats, mostly involving fish in some way. The research questions I pursue often relates to how predation/harvesting affect food web interactions and ultimately the services provided by aquatic systems and possible consequences of ongoing environmental changes driven by e.g climate change, eutrophication or pollution of pharmaceuticals. This sometimes entails intricate traits at the individual level, such as personality or body size dependent performances of the players involved, why the research often departs from or test fundamental theories and concepts. In more recent years my focus has been on multidisciplinary approaches to fisheries issues where I am studying the seal-fisheries interaction in coastal areas of the Baltic sea and the recent increase in round goby, an invasive benthic fish species in many areas of the world including the Baltic sea. This research encompass cooperation with social science and economy and is conducted in close collaboration with various stakeholders to derive possible and manageable solutions to pressing issues.