EN
20 individuals of Abramis brama from Gosławskie Lake and 10 individuals from Gopło Lake, central Poland, were investigated on the presence of trypanosomes. The infections of Trypanosoma abramidis LAVERAN and MESNIL, 1904 were detected in three breams from Gosławskie Lake and two in Gopło Lake. The question of the distinctivity of T. abramidis from T. carassii MITROPHANOW, 1883 found in other Cyprinidae in Poland is discussed.