Vis enkel innførsel

dc.contributor.authorStrøm, John Fredrik
dc.contributor.authorBjørn, Pål Arne
dc.contributor.authorBygdnes, Eirik Emil
dc.contributor.authorKristiansen, Lars Amundsen
dc.contributor.authorSkjold, Bjørnar
dc.contributor.authorBøhn, Thomas
dc.date.accessioned2023-03-09T08:27:39Z
dc.date.available2023-03-09T08:27:39Z
dc.date.created2022-12-16T13:11:27Z
dc.date.issued2022
dc.identifier.citationICES Journal of Marine Science. 2022, 79 (6), 1853-1863.en_US
dc.identifier.issn1054-3139
dc.identifier.urihttps://hdl.handle.net/11250/3057243
dc.description.abstractSalmon lice can impact the marine behaviour, growth, and survival of salmonids, but little is known about their effects on Arctic char. We present behavioural responses from the first dose-response experiment with wild anadromous Arctic char (n = 50) infested in situ with salmon lice (0.0–1.2 lice g−1 fish) in an area with low natural infestations. Infested fish spent less time at sea (mean ± SD = 22 ± 6 d) than non-infested fish (mean ±SD = 33 ± 5 d), and a significant dose response was evident, with even very low louse burdens (<0.05 lice g−1 fish) reducing the marine feeding time. Furthermore, a negative correlation was present between time spent close to their native watercourse and parasite burden, suggesting that salmon lice influence the marine habitat use of Arctic char. No impact of salmon lice was evident on the return probability, i.e. marine survival. However, the presence of louse-induced mortality cannot be excluded as the modest sample size was only sufficient to detect extreme effects. Reduced marine feeding time and altered marine habitat use will likely have substantial negative effects on growth and fitness, suggesting that impacts of salmon lice must be considered in the conservation of anadromous Arctic char.en_US
dc.language.isoengen_US
dc.titleBehavioural responses of wild anadromous Arctic char experimentally infested in situ with salmon liceen_US
dc.title.alternativeBehavioural responses of wild anadromous Arctic char experimentally infested in situ with salmon liceen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber1853-1863en_US
dc.source.volume79en_US
dc.source.journalICES Journal of Marine Scienceen_US
dc.source.issue6en_US
dc.identifier.doi10.1093/icesjms/fsac117
dc.identifier.cristin2094372
dc.relation.projectHavforskningsinstituttet: 15696en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.fulltextpostprint
cristin.qualitycode2


Tilhørende fil(er)

Thumbnail
Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel