Homing of Gyrodactylus salaris and G. derjavini (Monogenea) on different hosts and response post-attachment.

In natural European waters, the congeneric monogeneans Gyrodactylus derjavini Mikailov, 1975 and G. salaris Malmberg, 1957 are primarily found on brown trout Salmo trutta L. and Atlantic salmon Salmo salar L.