Department of Invertebrate Systematics and Ecology Institute of Biology, Wrocław University of Environmental and Life Sciences, Kożuchowska 5b, 51-631 Wrocław, Poland
Joanna Kubizna
Department of Animal Nutrition and Feed Quality, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
Jacek Wolnicki
Pond Fishery Department in Żabieniec, Inland Fisheries Institute in Olsztyn, Poland
Jan Kusznierz
Department of Biology and Conservation of Vertebrates Zoological Institute, University of Wrocław, Poland