Environmental drivers of Atlantic salmon behaviour in sea-cages: a review
Journal homepage: http://www.sciencedirect.com/science Artikkelen oppsummerer 20 års forskning på atferd og miljø i merder. Salmon may sense and respond to a range of environmental variables within sea-cages, including light, temperature, salinity, dissolved oxygen, water currents and certain chemic...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2011
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Online Access: | http://hdl.handle.net/11250/117029 https://doi.org/10.1016/j.aquaculture.2010.11.020 |
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ftimr:oai:imr.brage.unit.no:11250/117029 2023-05-15T15:31:39+02:00 Environmental drivers of Atlantic salmon behaviour in sea-cages: a review Oppedal, Frode Dempster, Tim Stien, Lars Helge 2011-02-03 application/pdf http://hdl.handle.net/11250/117029 https://doi.org/10.1016/j.aquaculture.2010.11.020 eng eng Elsevier urn:issn:0044-8486 http://hdl.handle.net/11250/117029 http://dx.doi.org/10.1016/j.aquaculture.2010.11.020 1-18 311 Aquaculture 1-4 aquaculture akvakultur atlantic salmon atlantisk laks salmon lice lakselus feeding fôring VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 Journal article Peer reviewed 2011 ftimr https://doi.org/10.1016/j.aquaculture.2010.11.020 2021-09-23T20:14:56Z Journal homepage: http://www.sciencedirect.com/science Artikkelen oppsummerer 20 års forskning på atferd og miljø i merder. Salmon may sense and respond to a range of environmental variables within sea-cages, including light, temperature, salinity, dissolved oxygen, water currents and certain chemical treatments used during production. Environments within sea-cages are typically highly variable in both space and time, with the greatest variation occurring with depth. Preferred swimming depths and densities of salmon are the result of active trade-offs among environmental influences and an array of internal motivational factors such as feed and perceived threats. When preferred levels of multiple environmental cues exist at different depths, behavioural responses to temperature, light, the entry of feed, oxygen levels or the presence of treatment chemicals may dominate and override behavioural responses to all other drivers and determine swimming depths. Behavioural trade-offs in response to environmental drivers typically result in schooling at specific depths within sea-cages at densities 1.5 to 5 times their stocked density, and up to 20 times in extreme cases. Understanding the spatial and temporal variability of key environmental variables within sea-cages and how salmon respond to them may enable modifications to sea-cage environments to improve welfare outcomes, feeding regimes, artificial light management strategies and the efficacy of sea-lice treatments. Article in Journal/Newspaper Atlantic salmon Institute for Marine Research: Brage IMR Aquaculture 311 1-4 1 18 |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
aquaculture akvakultur atlantic salmon atlantisk laks salmon lice lakselus feeding fôring VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 |
spellingShingle |
aquaculture akvakultur atlantic salmon atlantisk laks salmon lice lakselus feeding fôring VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 Oppedal, Frode Dempster, Tim Stien, Lars Helge Environmental drivers of Atlantic salmon behaviour in sea-cages: a review |
topic_facet |
aquaculture akvakultur atlantic salmon atlantisk laks salmon lice lakselus feeding fôring VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 |
description |
Journal homepage: http://www.sciencedirect.com/science Artikkelen oppsummerer 20 års forskning på atferd og miljø i merder. Salmon may sense and respond to a range of environmental variables within sea-cages, including light, temperature, salinity, dissolved oxygen, water currents and certain chemical treatments used during production. Environments within sea-cages are typically highly variable in both space and time, with the greatest variation occurring with depth. Preferred swimming depths and densities of salmon are the result of active trade-offs among environmental influences and an array of internal motivational factors such as feed and perceived threats. When preferred levels of multiple environmental cues exist at different depths, behavioural responses to temperature, light, the entry of feed, oxygen levels or the presence of treatment chemicals may dominate and override behavioural responses to all other drivers and determine swimming depths. Behavioural trade-offs in response to environmental drivers typically result in schooling at specific depths within sea-cages at densities 1.5 to 5 times their stocked density, and up to 20 times in extreme cases. Understanding the spatial and temporal variability of key environmental variables within sea-cages and how salmon respond to them may enable modifications to sea-cage environments to improve welfare outcomes, feeding regimes, artificial light management strategies and the efficacy of sea-lice treatments. |
format |
Article in Journal/Newspaper |
author |
Oppedal, Frode Dempster, Tim Stien, Lars Helge |
author_facet |
Oppedal, Frode Dempster, Tim Stien, Lars Helge |
author_sort |
Oppedal, Frode |
title |
Environmental drivers of Atlantic salmon behaviour in sea-cages: a review |
title_short |
Environmental drivers of Atlantic salmon behaviour in sea-cages: a review |
title_full |
Environmental drivers of Atlantic salmon behaviour in sea-cages: a review |
title_fullStr |
Environmental drivers of Atlantic salmon behaviour in sea-cages: a review |
title_full_unstemmed |
Environmental drivers of Atlantic salmon behaviour in sea-cages: a review |
title_sort |
environmental drivers of atlantic salmon behaviour in sea-cages: a review |
publisher |
Elsevier |
publishDate |
2011 |
url |
http://hdl.handle.net/11250/117029 https://doi.org/10.1016/j.aquaculture.2010.11.020 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
1-18 311 Aquaculture 1-4 |
op_relation |
urn:issn:0044-8486 http://hdl.handle.net/11250/117029 http://dx.doi.org/10.1016/j.aquaculture.2010.11.020 |
op_doi |
https://doi.org/10.1016/j.aquaculture.2010.11.020 |
container_title |
Aquaculture |
container_volume |
311 |
container_issue |
1-4 |
container_start_page |
1 |
op_container_end_page |
18 |
_version_ |
1766362183883554816 |