1. Department of Ichthyology, Hydrobiology and Aquatic Ecology, National Inland Fisheries Research Institute, Oczapowskiego St. 10, 10-719 Olsztyn, Poland
2. Institute of Engineering and Environmental Protection, Faculty of Geoengineering, University of Warmia and Mazury, Oczapowskiego St. 5, 10-719 Olsztyn, Poland
3. Department of Environmental Protection, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Mickiewicza 30 Ave., 30-059 Kraków, Poland