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Sequential tests for infectious hematopoietic necrosis virus in individuals and populations of sockeye salmon

September 15, 2015

The incidence and titer distribution of infectious hematopoietic necrosis virus in cavity fluid from spent female sockeye salmon (Oncorhynchus nerka) varied little when fish from a naturally spawning population were sampled three times on alternate days. However, when prespawning female sockeye salmon from a second population were individually tagged, penned, and sampled daily, the incidence and proportion of fish with high virus titer rose over a 6-d period. In 10 instances, consecutive cavity fluid samples from the same fish reverted from virus-positive to virus-negative. We suggest that spent fish should be sampled when accurate and quantitative data on the incidence and level of the virus are required.

Citation Information

Publication Year 1986
Title Sequential tests for infectious hematopoietic necrosis virus in individuals and populations of sockeye salmon
DOI 10.1139/f86-310
Authors Daniel M. Mulcahy, Ron Pascho
Publication Type Article
Publication Subtype Journal Article
Series Title Canadian Journal of Fisheries and Aquatic Sciences
Series Number
Index ID 70162142
Record Source USGS Publications Warehouse
USGS Organization Alaska Science Center