Authors
Maciej Rożyński
Department of Aquaculture, Stanisław Sakowicz Inland Fisheries Institute, Olsztyn, Poland
Agnieszka Sikora
Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
Krystyna Demska-Zakęś
Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
Zdzisław Zakęś
Department of Aquaculture, Stanisław Sakowicz Inland Fisheries Institute, Olsztyn, Poland