Sequential Tests for Infectious Hematopoietic Necrosis Virus in Individuals and Populations of Sockeye Salmon (Oncorhynchus nerka)
1986 ◽
Vol 43
(12)
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pp. 2515-2519
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Keyword(s):
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.
1970 ◽
Vol 27
(2)
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pp. 265-270
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1983 ◽
Vol 40
(9)
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pp. 1511-1516
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1976 ◽
Vol 33
(7)
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pp. 1564-1567
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1987 ◽
Vol 44
(5)
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pp. 1075-1078
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