Search Results - "Stien, Lars H."

Salmon lice treatments and salmon mortality in Norwegian aquaculture: a review by Overton, Kathy, Dempster, Tim, Oppedal, Frode, Kristiansen, Tore S., Gismervik, Kristine, Stien, Lars H.

“…With the expansion of Atlantic salmon aquaculture, the economic and ecological impacts of salmon lice (Lepeophtheirus salmonis) has increased. Norway battles…”
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Acute stress response on Atlantic salmon: a time-course study of the effects on plasma metabolites, mucus cortisol levels, and head kidney transcriptome profile by Madaro, Angelico, Nilsson, Jonatan, Whatmore, Paul, Roh, HyeongJin, Grove, Søren, Stien, Lars H., Olsen, Rolf Erik

“…Farmed Atlantic salmon ( Salmo salar ) welfare and performance can be strongly influenced by stress episodes caused by handling during farming practices. To…”
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Soft texture of atlantic salmon fillets is associated with glycogen accumulation by Torgersen, Jacob S, Koppang, Erling Olaf, Stien, Lars H, Kohler, Achim, Pedersen, Mona E, Mørkøre, Turid

“…Atlantic salmon (Salmo salar L.) with soft fillets are not suited for manufacturing high quality products. Therefore fillets with insufficient firmness are…”
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Thermal injuries in Atlantic salmon in a pilot laboratory trial by Gismervik, Kristine, Gåsnes, Siri K., Gu, Jinni, Stien, Lars H., Madaro, Angelico, Nilsson, Jonatan

“…Thermal delousing is a new method for removing sea lice from farmed Atlantic salmon (Salmo salar L). We investigated thermally-related tissue injuries in…”
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Environmental drivers of Atlantic salmon behaviour in sea-cages: A review by Oppedal, Frode, Dempster, Tim, Stien, Lars H.

“…Salmon may sense and respond to a range of environmental variables within sea-cages, including light, temperature, salinity, dissolved oxygen, water currents…”
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Coping with unpredictability: dopaminergic and neurotrophic responses to omission of expected reward in Atlantic salmon (Salmo salar L.) by Vindas, Marco A, Sørensen, Christina, Johansen, Ida B, Folkedal, Ole, Höglund, Erik, Khan, Uniza W, Stien, Lars H, Kristiansen, Tore S, Braastad, Bjarne O, Øverli, Øyvind

“…Comparative studies are imperative for understanding the evolution of adaptive neurobiological processes such as neural plasticity, cognition, and emotion…”
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Effect of cleaner fish on sea lice in Norwegian salmon aquaculture: a national scale data analysis by Barrett, Luke T., Overton, Kathy, Stien, Lars H., Oppedal, Frode, Dempster, Tim

“…[Display omitted] •The use of cleaner fish was not correlated with sea louse infestation density.•Farms that used many cleaner fish were able to wait longer…”
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Sea lice infestation levels decrease with deeper ‘snorkel’ barriers in Atlantic salmon sea‐cages by Oppedal, Frode, Samsing, Francisca, Dempster, Tim, Wright, Daniel W, Bui, Samantha, Stien, Lars H

“…BACKGROUND Salmon lice (Lepeophtheirus salmonis) are the most important parasites of farmed salmon. Infective larvae position themselves in the upper part of…”
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Lowering treatment temperature reduces salmon mortality: a new way to treat with hydrogen peroxide in aquaculture by Overton, Kathy, Samsing, Francisca, Oppedal, Frode, Stien, Lars H, Dempster, Tim

“…BACKGROUND Hydrogen peroxide (H2O2) baths are widely used to reduce numbers of salmon lice on farmed Atlantic salmon. Fish mortalities often occur after baths,…”
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A comparison of triploid and diploid Atlantic salmon (Salmo salar) performance and welfare under commercial farming conditions in Norway by Madaro, Angelico, Kjøglum, Sissel, Hansen, Tom, Fjelldal, Per Gunnar, Stien, Lars H.

“…Avoiding genetic interactions between wild and farmed Atlantic salmon is regarded as one of the major requirements for a sustainable salmon aquaculture…”
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Differential effects of internal tagging depending on depth treatment in Atlantic salmon: a cautionary tale for aquatic animal tag use by Wright, Daniel W, Stien, Lars H, Dempster, Tim, Oppedal, Frode

“…Electronic tags are widespread tools for studying aquatic animal behavior; however, tags risk behavioral manipulation and negative welfare outcomes. During an…”
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Triploid Atlantic salmon Salmo salar have a higher dietary phosphorus requirement for bone mineralization during early development by Sambraus, Florian, Hansen, Tom, Daae, Britt S., Thorsen, Anders, Sandvik, Roar, Stien, Lars H., Fraser, Thomas W. K., Fjelldal, Per Gunnar

“…The effect of a dietary phosphorus regime in freshwater on vertebra bone mineralization was assessed in diploid and triploid Atlantic salmon, Salmo salar. Fish…”
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Lowering treatment temperature reduces salmon mortality: a new way to treat with hydrogen peroxide in aquaculture by Overton, Kathy, Samsing, Francisca, Oppedal, Frode, Stien, Lars H, Dempster, Tim

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Snorkel technology to reduce sea lice infestations: efficacy depends on salinity at the farm site, but snorkels have minimal effects on salmon production and welfare by Oppedal, Frode, Bui, Samantha, Stien, Lars H., Overton, Kathy, Dempster, Tim

“…Sea lice are a critical health issue in most salmonid farming regions. New cage-based technologies can prevent infestations from occurring, such as the…”
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Salmon Welfare Index Model (SWIM 1.0): a semantic model for overall welfare assessment of caged Atlantic salmon: review of the selected welfare indicators and model presentation by Stien, Lars H., Bracke, Marc B. M., Folkedal, Ole, Nilsson, Jonatan, Oppedal, Frode, Torgersen, Thomas, Kittilsen, Silje, Midtlyng, Paul J., Vindas, Marco A., Øverli, Øyvind, Kristiansen, Tore S.

“…A semantic model for overall welfare assessment of Atlantic salmon reared in sea cages is presented. The model, called SWIM 1.0, is designed to enable fish…”
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Food anticipatory behaviour as an indicator of stress response and recovery in Atlantic salmon post-smolt after exposure to acute temperature fluctuation by Folkedal, Ole, Stien, Lars H, Torgersen, Thomas, Oppedal, Frode, Olsen, Rolf Erik, Fosseidengen, Jan Erik, Braithwaite, Victoria A, Kristiansen, Tore S

“…Abstract In this study we evaluated Pavlovian conditioned food anticipatory behaviour as a potential indicator for stress in groups of Atlantic salmon, and…”
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Skirt around a salmon sea cage to reduce infestation of salmon lice resulted in low oxygen levels by Stien, Lars H., Nilsson, Jonatan, Hevrøy, Ernst M., Oppedal, Frode, Kristiansen, Tore S., Lien, Andreas M., Folkedal, Ole

“…► We set out to investigate the use of skirts to limit fish exposure to sea lice. ► The skirt, together with the fish, caused the oxygen levels to decrease…”
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Low intensity light of different colours modifies Atlantic salmon depth use by Stien, Lars H., Fosseidengen, Jan Erik, Malm, Morten E., Sveier, Harald, Torgersen, Thomas, Wright, Daniel William, Oppedal, Frode

“…•The overall effect of the submerged lights was that they allowed the salmon to swim deep also during the night.•Quantities of fish staying deep decreased with…”
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Duration of effects of acute environmental changes on food anticipatory behaviour, feed intake, oxygen consumption, and cortisol release in Atlantic salmon parr by Folkedal, Ole, Torgersen, Thomas, Olsen, Rolf Erik, Fernö, Anders, Nilsson, Jonatan, Oppedal, Frode, Stien, Lars H, Kristiansen, Tore S, Fernö, A

“…Abstract We compared behavioural and physiological responses and recovery time after different acute environmental challenges in groups of salmon parr. The…”
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From fright to anticipation: Reward conditioning versus habituation to a moving dip net in farmed Atlantic cod (Gadus morhua) by Nilsson, Jonatan, Stien, Lars H., Fosseidengen, Jan Erik, Olsen, Rolf Erik, Kristiansen, Tore S.

“…Using reward conditioning to change the cognitive interpretation of stressors has been suggested as a method to reduce stress in farmed fish. We studied the…”
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