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dc.contributor.authorStien, Lars Helge
dc.contributor.authorDempster, Timothy David
dc.contributor.authorBui, Samantha
dc.contributor.authorGlaropoulos, Alexis
dc.contributor.authorFosseidengen, Jan Erik
dc.contributor.authorWright, Daniel W.
dc.contributor.authorOppedal, Frode
dc.identifier.citationAquaculture 2016, 458:29-37nb_NO
dc.description.abstractThe infestation of farmed Atlantic salmon (Salmo salar) by ectoparasitic sea lice (Lepeophtheirus salmonis) presents a need for new approaches to parasite control. One option is the use of ‘snorkel’ sea lice barrier technology, which restricts salmon from accessing the surface except via a vertical chamber impermeable to sea lice larvae. This prevents the salmon from swimming at the depths where infective sea lice are most abundant. Before snorkels can be implemented in commercial sea-cages, knowledge is required about their effects on salmon welfare and growth. Here, we installed snorkels of 4 m depth into three 12 × 12 × 12 m3 cages, and recorded the lice infestation of stocked fish along with their growth, behaviour, and snout and fin condition over a 12-week period. Three standard sea-cages were utilised for comparison, and all six cages were stocked with ~ 3500 salmon (2.3 ± 0.6 kg). After 3, 6, 9, and 12 weeks, fish in snorkel cages had 65, 24, 43, and 56% lower lice levels than in standard cages, respectively. Salmon in both snorkel and standard cages grew similarly well and we detected little or no adverse effects on fish mortality or welfare. The results indicate that snorkel sea-cage barrier technology provides a promising new tool in parasite management in salmon aquaculture.nb_NO
dc.rightsNavngivelse-DelPåSammeVilkår 3.0 Norge*
dc.title'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impactsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.subject.nsiVDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Fiskehelse : 923nb_NO
dc.subject.nsiVDP::Agriculture and fisheries science: 900::Fisheries science: 920::Fish health: 923nb_NO
dc.relation.projectFiskeri- og havbruksnæringens forskningsfond: 900884nb_NO

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Navngivelse-DelPåSammeVilkår 3.0 Norge
Except where otherwise noted, this item's license is described as Navngivelse-DelPåSammeVilkår 3.0 Norge