Zbigniew Kowalewski is an assistant professor at the Faculty of Mining, Surveying and Environmental Engineering at AGH University of Science and Technology. His research focuses on eutrophication. He is mainly interested in eutrophication assessment methods and models and also in modeling water interactions in ecosystems. He is an avid user of R language in data analysis and statistics. He has a Ph.D from the Department of Environmental Management and Protection at AGH UST (year, 2012—“Verification of the possibility of using an integral criterion to assess the trophic status of running waters”).