Ratha Sor is the acting dean of the Graduate School of Chea Sim University of Kamchaymear. Recently, he has been a post-doc for the Wonders of the Mekong Project. He received his double PhD degree from Ghent University (Belgium) and the University of Paul Sabatier - Toulouse III (France) in 2017. He conducts research in an array of disciplines: ecology, tradeoff dams and biodiversity, species distribution modelling, biological invasions, fisheries, water quality assessment, ecological restoration, and management.