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dc.contributor.authorJohansen, Renate
dc.contributor.authorBergh, Øivind
dc.contributor.authorModahl, Ingebjørg
dc.contributor.authorDahle, Geir
dc.contributor.authorGjerset, Britt
dc.contributor.authorHolst, Jens Christian
dc.contributor.authorSandlund, Nina
dc.date.accessioned2013-10-23T12:13:33Z
dc.date.issued2013-03-25
dc.identifier.citationJohansen R, Bergh Ø, Modahl I, Dahle G, Gjerset B, Holst JC, Sandlund N (2013) High prevalence of viral haemorrhagic septicaemia virus (VHSV) in Norwegian spring‑spawning herring. Mar Ecol Prog Ser 478:223-230no_NO
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttp://hdl.handle.net/11250/109250
dc.description.abstractViral haemorrhagic septicaemia (VHS) is a viral disease known to cause high mortality in many teleost species, both in wild and farmed populations. The effects of this virus infection on the population dynamics of Atlantic herring Clupea harengus are still unknown; however, high mortalities have been reported in infected Pacific herring C. pallasii. We investigated Atlantic herring from the Norwegian spring-spawning (NSS) stock during the spawning season and found a much higher prevalence of VHS virus (VHSV) than had been identified in previous surveillance studies. Positive results were found in 19% of the samples analysed using viral cell culture on pooled brain, spleen and kidney tissue samples from 5 fish. Real-time RT-PCR performed on the same pooled samples revealed 33% positive samples, while analysis of individual organs resulted in a prevalence of 12-13%. Gills, which were analysed only by real-time RT-PCR, displayed a prevalence of 69%. It is not clear whether the virus detected in the gills reflects an infection or a passive carrier status. Sequencing of positive samples from gills and internal organs revealed high identity levels with VHSV of genotype Ib detected previously in Norwegian herring. The high prevalence identified in our study indicates a need for further research into the significance of VHSV infection on the herring population.no_NO
dc.language.isoengno_NO
dc.publisherInter-Researchno_NO
dc.subjectherringno_NO
dc.subjectsildno_NO
dc.subjectvirusno_NO
dc.titleHigh prevalence of viral haemorrhagic septicaemia virus (VHSV) in Norwegian spring‑spawning herringno_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923no_NO
dc.description.embargo2018-03-25
dc.source.pagenumber223-230no_NO
dc.source.volume478no_NO
dc.source.journalMarine Ecology Progress Seriesno_NO
dc.identifier.doi10.3354/meps10208


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