1. Faculty of Fisheries and Protection of Waters South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses Research Institute of Fish Culture and Hydrobiology University of South Bohemia in Ceske Budejovice Zátiší 728/II Vodňany389 25Czech Republic
2. Department of Molecular Sciences Swedish University of Agricultural Sciences PO Box 7015 Uppsala75007Sweden
3. Faculty of Fisheries and Protection of Waters South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses Institute of Aquaculture and Protection of Waters University of South Bohemia in České Budějovice Husova tř. 458/102 České Budějovice370 05Czech Republic