1. Silesian Water Centre, Faculty of Natural Sciences, University of Silesia in Katowice, 40-007 Katowice, Poland
2. Institute of Marine and Environmental Sciences, University of Szczecin, 70-383 Szczecin, Poland
3. Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, 40-007 Katowice, Poland
4. Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Łódź, Poland
5. Faculty of Science and Technology, University of Silesia in Katowice, 40-007 Katowice, Poland
6. Institute of Biology, University of Szczecin, 71-415 Szczecin, Poland