Dr Karolina Sunjog is a Senior Research Associate at the University of Belgrade, Institute for Multidisciplinary Research, specializing in biological sciences and toxicology, with a particular focus on ecotoxicology and the effects of environmental pollutants in aquatic ecosystems. She holds a PhD in Biology from the University of Belgrade, where her research focused on the ecogenotoxicological assessment of surface water quality using the comet assay on fish species. Her research interests include microplastics, ecotoxicological effects of pollutants, and the protection of aquatic ecosystems. She has been actively involved in a number of international and national research projects, including Horizon Europe, COST Actions, and Danube-related collaborative initiatives, and has contributed to multidisciplinary studies integrating biology, toxicology, and environmental sciences.