1. HUN-REN Centre for Ecological Research, Institute of Aquatic Ecology, Department of Tisza Research, 18/c Bem tér, H-4026 Debrecen, Hungary
2. Pál Juhász-Nagy Doctoral School of Biology and Environmental Sciences, University of Debrecen, Debrecen, Egyetem tér 1, H-4032 Hungary
3. Department of Public Health, Laboratory for Environmental Protection, Government Office of Borsod-Abaúj-Zemplén County, Mindszent tér 3., H-3530 Miskolc, Hungary
4. Department of Hydrobiology, University of Debrecen, Debrecen, Egyetem tér 1, H-4032 Hungary