Abstract
In this review, an autline of the parasites caused as fish diseases and problems of food hygiene occurred in salmonid fishes in Hokkaido have been described, including Nosema takedai, Haplosporid, Tetraonchus awakurai, Acanthocephalus minor, Lepeophtheirus salmonis, Rocinera maculata, glochidia of Margaritifera laevis, Diphyllobothrium latum and Anisakis sp. larva.
