Dr Daphne Cortese is leader of the new research group "Fish Ecophysiology" at IGB since April 2026. Prior to this, she was a postdoctoral fellow at UMR MARBEC (MARine Biodiversity Exploitation and Conservation) in Sète, France, and a postdoctoral researcher at the University of Glasgow. Fish have always fascinated her, particularly how their physiology and behaviour are shaped by the health of their habitat. She talks about this in a short interview.