2016
DOI: 10.1016/j.aquaculture.2016.02.014
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‘Snorkel’ sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts

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Cited by 92 publications
(86 citation statements)
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“…When fish in the unmanipulated cages swam deeper and matched the depths of those in the snorkel cage, the levels of new infestations acquired (chalimus stages) were similar between the 2 groups ( Fig. S3 in the Supplement; Stien et al 2016). Hence, the deeper swimming by parasitised groups (medium and high) at night in our study indicates a reduced risk of further infestation.…”
Section: Discussionmentioning
confidence: 57%
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“…When fish in the unmanipulated cages swam deeper and matched the depths of those in the snorkel cage, the levels of new infestations acquired (chalimus stages) were similar between the 2 groups ( Fig. S3 in the Supplement; Stien et al 2016). Hence, the deeper swimming by parasitised groups (medium and high) at night in our study indicates a reduced risk of further infestation.…”
Section: Discussionmentioning
confidence: 57%
“…An experiment running concurrently at the farm site during our experimental period confirmed that infective copepodids were most concentrated in the upper 4 m of the water column: salmon in 'snorkel' cages of the same dimension as cages used in this study, except with a roof that prevented access to 0−4 m depths (except via a chamber impermeable to seawater exchange), acquired 60−68% fewer new infestations than fish that could swim at 0−4 m (Fig. S2 in the Supplement; Stien et al 2016). With the same stocking densities and fish size as our experimental salmon, the groups in unmanipulated sea-cages (also of the same dimensions as used in our study) exhibited distinct day and night swimming depths on most days, where their depths at night remained largely within 0−4 m (Fig.…”
Section: Discussionmentioning
confidence: 61%
“…El tubo central, hecho de lona o red de plancton, impide el paso de los copepoditos y permite generar un área libre de parásitos (Stien et al, 2015). De esta forma, los peces pueden llegar a la superficie y llenar de aire su vejiga natatoria, lo que convierte a estas jaulas en una buena opción en comparación con otras jaulas totalmente sumergidas, donde los peces no tienen acceso a la superficie (Føre et al, 2011), de allí que se desencadena una serie de efectos negativos sobre el crecimiento y comportamiento de los peces.…”
Section: Protocolos De Cultivo En Aguas Profundasunclassified
“…Por otro lado, las tasas de crecimiento o el bienestar de los peces se ve alterado en las jaulas snorkel (Stien et al, 2015).…”
Section: Protocolos De Cultivo En Aguas Profundasunclassified
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