The water mould Saprolegnia can cause skin disease in salmon during its freshwater phase. The mould attacks both fish and eggs and has at times caused great economic loss for the fish farming industry, both in Norway and in other salmon-producing countries. Saprolegnia infection may be seen with the naked eye as white patches on the skin or as "cotton-like" patches on eggs.
In his doctorate, Svein Stueland from the National Veterinary Institute showed that different strains of the water mould Saprolegnia vary in their ability to cause disease and mortality in farmed salmon. In addition, he developed a simple and effective method for testing new medications that may prove important for treating the disease.
In his doctorate, Svein Stueland from the National Veterinary Institute showed that different strains of the water mould Saprolegnia vary in their ability to cause disease and mortality in farmed salmon. In addition, he developed a simple and effective method for testing new medications that may prove important for treating the disease.


