1. University of South Bohemia České Budějovice; Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses; Zátiší 728/II Vodňany 389 25 Czech Republic
2. Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Science of Ukraine; 23 Pereyaslavskaya str. Kharkov 61015 Ukraine