We are excited to have Stefan join the team, moving from his position in Bremen to our cooperative institute at UC Santa Cruz.  During his PhD, Stefan used interdisciplinary methods to investigate the impacts of ongoing ocean warming and acidification on the marine ecosystem and human user groups in the sub-arctic Barents Sea. He developed and applied integrative ecological models that incorporate experimental and observational data on biological processes as well as the input of local stakeholder groups. The models allow to assess future shifts in marine fish stocks, food web-mediated impacts on marine mammals and seabirds, and changes in ecosystem functioning. They are used to develop feasible and fair strategies for ecosystem-based governance of climate change impacts in the marine realm. We are excited to have Stefan join the team and help develop similar models for the California Current!