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dc.contributor.authorAronsen, Tonje
dc.contributor.authorUlvan, Eva Marita
dc.contributor.authorNæsje, Tor
dc.contributor.authorFiske, Peder
dc.coverage.spatialNorwegian coasten_US
dc.date.accessioned2020-11-06T08:50:22Z
dc.date.available2020-11-06T08:50:22Z
dc.date.created2020-11-05T14:54:35Z
dc.date.issued2020
dc.identifier.citationAquaculture Environment Interactions. 2020, 12 371-383.en_US
dc.identifier.issn1869-215X
dc.identifier.urihttps://hdl.handle.net/11250/2686658
dc.description.abstractTo gain more knowledge about escaped farmed salmon Salmo salar in the wild, we investigated the proportion of escapees, body length at escape, proportion escaped as smolts/post-smolts (≤300 mm) and number of winters in the wild (winter zones in the growth pattern in the scale samples) in catches on the Norwegian coast and in an adjacent fjord from 2013 to 2017. The mean proportion of escapees was higher on the coast (26%) than in the fjord (4%), and escapees caught on the coast had a slightly larger mean body length at escape (607 mm) than in the fjord (557 mm). However, the mean proportion escaped as smolts/post-smolts did not differ significantly be tween the coast (8%) and the fjord (11%). There was also no significant difference in the mean proportion of farmed salmon with 1 or more winter zones after escape (50% on the coast and 56% in the fjord). The proportions of escapees with 1, 2, 3 or 4 winter zones after escape were 28, 20, 2 and 0.4% in catches on the coast and 30, 21 and 4% in catches in the fjord, respectively. This study found that the proportion of escapees was considerably higher in coastal waters than in the fjord. Escapees consisted of farmed salmon from several escape events over several years, and approximately 50% of the escapees had one or more winter zones after escape. Thus, escaped farmed salmon may pose a threat to wild salmon populations for several years after the escape event. Atlantic salmon · Escapees · Aquacultureen_US
dc.language.isoengen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.subjectAtlantic salmonen_US
dc.subjectEscapeesen_US
dc.subjectAquacultureen_US
dc.titleEscape history and proportion of farmed Atlantic salmon Salmo salar on the coast and in an adjacent salmon fjord in Norwayen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© The authors 2020.en_US
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480en_US
dc.subject.nsiVDP::Zoology and botany: 480en_US
dc.source.pagenumber371-383en_US
dc.source.volume12en_US
dc.source.journalAquaculture Environment Interactionsen_US
dc.identifier.doi10.3354/aei00370
dc.identifier.cristin1845342
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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