Health screening of wild Atlantic salmon (Salmo salar) from the Osterfjorden-area, western Norway
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Wild Atlantic salmon (Salmo salar) were captured in four rivers in western Norway in 1989 and 1990. These were used as broodstock fish in a sea ranching project. In 1989 virological and bacteriological examinations of the fish were negative for Infectious Pancreatic Necrosis Virus, Renibacterium salmoniarum, Aeromonas salmonicida var. salmonicida and Yersinia ruckeri. In 1990 three fish were positive for IPNV and one fish was positive for Aeromonas salmonicida var. salmonicida. The results supply the mapping of the introduction of furunculosis at the Norwegian west coast in 1989-90, indicate a low prevalence of Infectious Pancreatic Necrosis Virus in the wild salmon stocks and states that the broodstock fish used in the sea ranching project in 1989 and 1990 were tested in accordance with the demands for a satisfactory health control.