[The parasitization of Gadus morhua in the southern Baltic Sea].

During a survey of the working group 25 of BMB in the south of the Baltic Sea in October 1991 105 cod (Gadus morhua L.) were investigated for parasites (ICES Subdivision Areas 22, 24, 25 and 26). They were parasitized by 15 species. With increasing salinity (from east to west) and in the higher size groups more parasite species were present. Eimeria spec. in the liver and Schistocephalus spec. in the body cavity were registered for the first time in cod.