1. Department of Zoology; Faculty of Natural Sciences; Comenius University; Bratislava Slovak Republic
2. Department of Biology and Wildlife Diseases; Faculty of Veterinary Hygiene and Ecology; University of Veterinary and Pharmaceutical Sciences; Brno Czech Republic
3. State Nature Conservancy of the Slovak Republic; Administration of the Protected Landscape Area White Carpathians; Nemšová Slovak Republic
4. Laboratory of Fish Genetics; Institute of Animal Physiology and Genetics; Academy of Sciences of the Czech Republic; Liběchov Czech Republic
5. Life Science Research Centre, Department of Biology and Ecology; Faculty of Natural Sciences; University of Ostrava, Ostrava Czech Republic