Sequential tests for infectious hematopoietic necrosis virus in individuals and populations of sockeye salmon
Canadian Journal of Fisheries and Aquatic Sciences
By: Daniel M. Mulcahy and Ron Pascho
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Abstract
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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Sequential tests for infectious hematopoietic necrosis virus in individuals and populations of sockeye salmon |
| Series title | Canadian Journal of Fisheries and Aquatic Sciences |
| DOI | 10.1139/f86-310 |
| Volume | 43 |
| Issue | 12 |
| Year Published | 1986 |
| Language | English |
| Publisher | NRC Research Press |
| Contributing office(s) | Alaska Science Center, Alaska Science Center Biology MFEB, Western Fisheries Research Center |
| Description | 5 p. |
| First page | 2515 |
| Last page | 2519 |