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dc.contributor.authorØvrebø, Tarald Kleppa
dc.contributor.authorVigo, Pablo Balseiro
dc.contributor.authorImsland, Albert
dc.contributor.authorStefansson, Sigurd Olav
dc.contributor.authorTveterås, Ragnar
dc.contributor.authorSveier, Harald
dc.contributor.authorHandeland, Sigurd Olav
dc.date.accessioned2022-09-12T12:03:02Z
dc.date.available2022-09-12T12:03:02Z
dc.date.created2022-09-01T19:29:29Z
dc.date.issued2022
dc.identifier.issn1355-557X
dc.identifier.urihttps://hdl.handle.net/11250/3017262
dc.description.abstractThe Norwegian salmon industry faces challenges related to sea lice (Lepeophtheirus salmonis) infestations, escapees, diseases and environmental impact. Semi-closed containment systems (S-CCS) have been proposed to abate these challenges. In the S-CCS, cultured fish are separated from the natural environment by a physical barrier, reducing the time fish spend in open sea cages. Production data from six cohorts of salmon were used to compare growth and performance of fish raised in S-CCS and in open sea cages (control group) incorporating different seasons. The study was carried out in two phases. Phase one used post-smolts from approximately 100 to 800 g in seawater, and fish in S-CCS were compared with a reference group from an open sea cage. The second, grow-out phase covered the size range from approximately 800 to 5000 g in open sea cages; here fish previously reared in S-CCS were compared with fish from a control group. The study showed a significantly lower infestation of sea lice in S-CCS (0.02–0.04) fish compared with the control group (0.18–0.62) during the post-smolt phase. Furthermore, in the grow-out phase the S-CCS group showed higher growth rate and higher final weight (4680 g [spring], 4890 g [fall]) for the S-CCS group compared with the control group (3800 g [spring] and 4080 g [fall]). Salmon raised in S-CCS showed significantly higher survival compared with the control group in open pens, indicating increased resilience in fish raised in S-CCS when transferred to open net pens in sea. It is concluded that S-CCS have advantages compared with exposure to the natural environment in open pens in western Norway.en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleInvestigation of growth performance of post-smolt Atlantic salmon (Salmo salar L.) in semi closed containment system: A big-scale benchmark studyen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2022 The Authorsen_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1111/are.15919
dc.identifier.cristin2048084
dc.source.journalAquaculture Researchen_US
dc.source.pagenumber4178-4189en_US
dc.identifier.citationAquaculture Research. 2022, 53 (11), 4178-4189.en_US
dc.source.volume53en_US
dc.source.issue11en_US


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