• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Havforskningsinstituttet
  • Research Programmes
  • The Biological Mechanisms Programme
  • View Item
  •   Home
  • Havforskningsinstituttet
  • Research Programmes
  • The Biological Mechanisms Programme
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Viral Haemorrhagic Septicemia (VHS) in wild and farmed fish in Norwegian waters

Bergh, Øivind; Sandlund, Nina; Einen, Ann Cathrine Bårdsgjære; Rudra, Hari; Olsen, Rolf Hetlelid; Kristiansen, Arve
Conference object
Thumbnail
View/Open
Bergh_VHS_Bergen_May_2011.pdf (2.368Mb)
URI
http://hdl.handle.net/11250/117141
Date
2011-05
Metadata
Show full item record
Collections
  • The Biological Mechanisms Programme [28]
Abstract
Viral Haemorrhagic septicaemia viruses (VHSV) are isolated

from 82 different fish species and are globally spread in

freshwater as well as marine environments. The virus can

cause disease outbreaks both in wild and farmed fish.

Different genotypes of the virus have been isolated in

different parts of the world. Furthermore, most isolates

seem to show some degree of species specificity. For

instance, the genotype 1a, that is a major killer in farmed

rainbow trout, shows low mortality to cod, and vice versa

the genotype III from cod show low mortality to rainbow

trout.

However, the established view was challenged in

2007, when a VHSV of genotype III resulted in a VHS outbreak

on several sites with farmed rainbow in one fjord in Norway.

The farmed populations were slaughtered, according to

legislative regulation. Experimental challenge studies

confirmed that this genotype III isolate showed higher

morality rates compared to other genotype III isolates. The

source of infection is still unknown, but wild reservoirs

are suspected.

A major aim is to investigate wild fish

along the Norwegian cost for detection of VHSV. New isolates

will be characterized and further investigated along with

the genotype III isolated from 2007. So far we have tested

almost 3000 fish from 36 different fish species. Results

from the screening and tentative challenge trials will be

presented.
Publisher
Institute of Marine Research

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit