Departament of Ichthyology, Faculty of Environmental Sciences and Fisheries, University of Warmia and Mazury in Olsztyn, Oczapowskiego str. 5, 10-718 Olsztyn-Kortowo, Poland
Małgorzata Jankun
Departament of Ichthyology, Faculty of Environmental Sciences and Fisheries, University of Warmia and Mazury in Olsztyn, Oczapowskiego str. 5, 10-718 Olsztyn-Kortowo, Poland
Henryk Kuźmiński
Department of Salmonid Research Rutki, The Stanisław Sakowicz Inland Fisheries Institute in Olsztyn, Poland