Cristin-resultat-ID: 2129592
Sist endret: 3. oktober 2023, 15:55
NVI-rapporteringsår: 2023
Resultat
Vitenskapelig artikkel
2023

Direct evidence of increased natural mortality of a wild fish caused by parasite spillback from domestic conspecifics

Bidragsytere:
  • Knut Vollset
  • Robert Lennox
  • Helge Skoglund
  • Ørjan Karlsen
  • Eirik Normann
  • Tore Wiers
  • mfl.

Tidsskrift

Proceedings of the Royal Society of London. Biological Sciences
ISSN 0962-8452
e-ISSN 1471-2954
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2023
Publisert online: 2023
Volum: 290:20221752
Hefte: 1991
Sider: 1 - 12
Open Access

Importkilder

Scopus-ID: 2-s2.0-85147048136

Klassifisering

Vitenskapsdisipliner

Zoologiske og botaniske fag

Beskrivelse Beskrivelse

Tittel

Direct evidence of increased natural mortality of a wild fish caused by parasite spillback from domestic conspecifics

Sammendrag

Parasite spillback from domestic animals can distort the balance between host and parasites in surrounding wildlife, with potential detrimental effects on wild populations. In aquatic environments, parasite spillback from aquaculture to wild salmon is one of the most contentious sustainability debates. In a 19 year time series of release group studies of Atlantic salmon, we demonstrated that (i) the effect of subjecting out-migrating salmon smolts to parasite treatment on marine survival has been reduced over a time, (ii) the relation between salmon lice levels in the out-migration route of the salmon and effect of treatment against the parasite is weak, but also (iii) the return rates in both treated and untreated groups of salmon are negatively correlated with salmon lice levels, and (iv) returns of wild salmon to the region are similarly negatively correlated with salmon lice levels during the out-migration year. Our study suggests that salmon lice can have a large effect on wild salmon populations that is not revealed with randomized control trials using antiparasitic drugs. This should be better accounted for when considering the impacts of farms on wild salmon populations. biological applications, ecology, environmental science sea lice, Lepeophtheirus salmonis, salmonid,marine survival, conservation

Bidragsytere

Knut Wiik Vollset

Bidragsyterens navn vises på dette resultatet som Knut Vollset
  • Tilknyttet:
    Forfatter
    ved NORCE Klima og miljø ved NORCE Norwegian Research Centre AS

Robert J. Lennox

Bidragsyterens navn vises på dette resultatet som Robert Lennox
  • Tilknyttet:
    Forfatter
    ved NINA laksefisk ved Norsk institutt for naturforskning

Helge Skoglund

  • Tilknyttet:
    Forfatter
    ved NORCE Klima og miljø ved NORCE Norwegian Research Centre AS

Ørjan Karlsen

  • Tilknyttet:
    Forfatter
    ved Reproduksjon og utvikl.biologi ved Havforskningsinstituttet

Eirik Normann

  • Tilknyttet:
    Forfatter
    ved NORCE Klima og miljø ved NORCE Norwegian Research Centre AS
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