András Abonyi, PhD, is a researcher at the HUN-REN Centre for Ecological Research, Institute of Aquatic Ecology (Budapest) and a guest researcher at the WasserCluster Lunz (Lunz am See, Austria). His main research area is phytoplankton ecology. His research currently focuses on (1) the biodiversity-ecosystem function relationship (BEF) in lake and river phytoplankton, (2) the phytoplankton-zooplankton trophic link via chytrid fungal parasites, and (3) long-term ecosystem-scale changes in large rivers, e.g. in the River Danube. He has gained expertise on the phytoplankton of Hungarian oxbow and pit lakes (2005–2007), Lake Erken in Sweden (2008), the River Loire in France (2009–2015), the River Danube in Hungary (2016–2018) and lakes across Fennoscandia. He is an editorial board member of Community Ecology (Springer) and the Journal of Limnology (PagePress), board member of the Hungarian Hydrological Society Limnology Section, national representative of Hungary in the International Society of Limnology (SIL) and the European Federation for Freshwater Sciences (EFFS). He has been awarded the MHT Klebelsberg Kuno Silver Medal (2007), TAMOP Scholarship (2010), Campus Hungary Scholarship (2013, 2015), VEAB Outstanding Young Researcher (2015), and OeAD Ernst Mach Austria Scholarship (2016). He is married and father of two children.