1. Silesian Water Centre, Faculty of Natural Sciences University of Silesia in Katowice Katowice Poland
2. Institute of Nature Conservation, Polish Academy of Sciences Kraków Poland
3. Laboratory of Scanning Electron Microscopy, Faculty of Natural Sciences University of Silesia in Katowice Katowice Poland
4. Department of Anatomy and Neurobiology Commonwealth University School of Medicine Richmond Virginia
5. Institute of Chemistry, Faculty of Science and TechnologyUniversity of Silesia in Katowice Katowice Poland