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Appearance and quantification of infectious hematopoietic necrosis virus in female sockeye salmon (Oncorhynchus nerka) during their spawning migration

September 15, 2015

The incidence and amount of infectious hematopoietic necrosis (IHN) virus was determined in 10 organs and body fluids from each of 100 female sockeye salmon(Oncorhynchus nerka) before, during, and after their spawning migration into freshwater. Virus was found in high concentrations only in fish sampled during and after spawning. Infection rates increased from nil to 100 percent within 2 weeks. In spawning fish, incidences of IHN virus were high in all organs and fluids except brain and serum, and the highest concentrations were in the pyloric caeca and lower gut. Immediately before spawning, IHN virus was found most frequently in the gills, less frequently in the pyloric caeca and spleen, and rarely in other organs.

Citation Information

Publication Year 1984
Title Appearance and quantification of infectious hematopoietic necrosis virus in female sockeye salmon (<i>Oncorhynchus nerka</i>) during their spawning migration
DOI 10.1007/BF01310657
Authors D. Mulcahy, C.K. Jenes, R.J. Pascho
Publication Type Article
Publication Subtype Journal Article
Series Title Archives of Virology
Series Number
Index ID 70162158
Record Source USGS Publications Warehouse
USGS Organization Western Fisheries Research Center