4th workshop of European centre of ichthyoparasitology : workshop venue: international environmental educational, advisory and informatioc centre of water protection (IEEAIC), Vodňany, Czech Republic : 23-25 November 2015 - Mašová, Šárka, 1983-; Kobíková, Zuzana; Gelnar, Milan, 1955- (Masaryk University, 2015)