Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control
This paper describes a study in which environmental manipulation of salmon swimming depth was tested in an attempt to reduce farm infection of Atlantic salmon, Salmo salar by the salmon louse, Lepeophtheirus salmonis. The effects of submerged artificial lighting (positioned at 10m depth) in combinat...
Published in: | Aquaculture |
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Format: | Article in Journal/Newspaper |
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2014
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Online Access: | http://hdl.handle.net/1893/22618 https://doi.org/10.1016/j.aquaculture.2013.12.012 http://dspace.stir.ac.uk/bitstream/1893/22618/1/Frenzl%20et%20al%20.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/22618 2023-05-15T15:31:04+02:00 Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control Frenzl, Benedikt Stien, Lars Helge Cockerill, David Oppedal, Frode Richards, Randolph Shinn, Andrew Bron, James Migaud, Herve University of Stirling Norwegian Institute of Marine Research Mowi (Scotland) Institute of Aquaculture orcid:0000-0002-5434-2685 orcid:0000-0003-3544-0519 orcid:0000-0002-5404-7512 2014-03-20 application/pdf http://hdl.handle.net/1893/22618 https://doi.org/10.1016/j.aquaculture.2013.12.012 http://dspace.stir.ac.uk/bitstream/1893/22618/1/Frenzl%20et%20al%20.pdf en eng Elsevier Frenzl B, Stien LH, Cockerill D, Oppedal F, Richards R, Shinn A, Bron J & Migaud H (2014) Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control. Aquaculture, 424-425, pp. 183-188. https://doi.org/10.1016/j.aquaculture.2013.12.012 http://hdl.handle.net/1893/22618 doi:10.1016/j.aquaculture.2013.12.012 WOS:000332408400023 2-s2.0-84892894658 590698 http://dspace.stir.ac.uk/bitstream/1893/22618/1/Frenzl%20et%20al%20.pdf The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. http://www.rioxx.net/licenses/under-embargo-all-rights-reserved 2999-12-15 [Frenzl et al .pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work. Lepeophtheirus salmonis Salmo salar Light Submerged feeding Behaviour Journal Article VoR - Version of Record 2014 ftunivstirling https://doi.org/10.1016/j.aquaculture.2013.12.012 2022-06-13T18:43:48Z This paper describes a study in which environmental manipulation of salmon swimming depth was tested in an attempt to reduce farm infection of Atlantic salmon, Salmo salar by the salmon louse, Lepeophtheirus salmonis. The effects of submerged artificial lighting (positioned at 10m depth) in combination with submerged feeding (delivered at 5m depth) were tested with respect to salmon swimming depth and sea lice infection, following the hypothesis that L. salmonis infection in a commercial salmon population is reduced when exposed to deep lighting and feeding. This is based on two assumptions, firstly that planktonic L. salmonis larvae principally remain in surface waters (top 4m) and secondly, that deep lighting and feeding attract salmon to deeper water depths. Results from commercial scale trials confirmed that salmon swimming behaviour is altered under submerged feeding conditions with fish attracted to the feeding corridor during the feeding process. When the fish reached satiation or feeding ceased, they returned to the surface waters during the day. Submerged lighting attracted the fish to the illuminated water depths during the night. During the day, natural light overruled these effects to some extent. The number of L. salmonis on fish exposed to deep submerged lighting was significantly lower than the number of lice found on salmon in cages with surface lighting during the summer months. Submerged feeding showed no advantage over surface feeding with respect to the number of L. salmonis found in these trials. The results of the study suggest that swimming depth manipulation can be used at a commercial scale to reduce salmon lice burdens on Atlantic salmon stocks. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Stirling: Stirling Digital Research Repository Aquaculture 424-425 183 188 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
Lepeophtheirus salmonis Salmo salar Light Submerged feeding Behaviour |
spellingShingle |
Lepeophtheirus salmonis Salmo salar Light Submerged feeding Behaviour Frenzl, Benedikt Stien, Lars Helge Cockerill, David Oppedal, Frode Richards, Randolph Shinn, Andrew Bron, James Migaud, Herve Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
topic_facet |
Lepeophtheirus salmonis Salmo salar Light Submerged feeding Behaviour |
description |
This paper describes a study in which environmental manipulation of salmon swimming depth was tested in an attempt to reduce farm infection of Atlantic salmon, Salmo salar by the salmon louse, Lepeophtheirus salmonis. The effects of submerged artificial lighting (positioned at 10m depth) in combination with submerged feeding (delivered at 5m depth) were tested with respect to salmon swimming depth and sea lice infection, following the hypothesis that L. salmonis infection in a commercial salmon population is reduced when exposed to deep lighting and feeding. This is based on two assumptions, firstly that planktonic L. salmonis larvae principally remain in surface waters (top 4m) and secondly, that deep lighting and feeding attract salmon to deeper water depths. Results from commercial scale trials confirmed that salmon swimming behaviour is altered under submerged feeding conditions with fish attracted to the feeding corridor during the feeding process. When the fish reached satiation or feeding ceased, they returned to the surface waters during the day. Submerged lighting attracted the fish to the illuminated water depths during the night. During the day, natural light overruled these effects to some extent. The number of L. salmonis on fish exposed to deep submerged lighting was significantly lower than the number of lice found on salmon in cages with surface lighting during the summer months. Submerged feeding showed no advantage over surface feeding with respect to the number of L. salmonis found in these trials. The results of the study suggest that swimming depth manipulation can be used at a commercial scale to reduce salmon lice burdens on Atlantic salmon stocks. |
author2 |
University of Stirling Norwegian Institute of Marine Research Mowi (Scotland) Institute of Aquaculture orcid:0000-0002-5434-2685 orcid:0000-0003-3544-0519 orcid:0000-0002-5404-7512 |
format |
Article in Journal/Newspaper |
author |
Frenzl, Benedikt Stien, Lars Helge Cockerill, David Oppedal, Frode Richards, Randolph Shinn, Andrew Bron, James Migaud, Herve |
author_facet |
Frenzl, Benedikt Stien, Lars Helge Cockerill, David Oppedal, Frode Richards, Randolph Shinn, Andrew Bron, James Migaud, Herve |
author_sort |
Frenzl, Benedikt |
title |
Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
title_short |
Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
title_full |
Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
title_fullStr |
Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
title_full_unstemmed |
Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
title_sort |
manipulation of farmed atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control |
publisher |
Elsevier |
publishDate |
2014 |
url |
http://hdl.handle.net/1893/22618 https://doi.org/10.1016/j.aquaculture.2013.12.012 http://dspace.stir.ac.uk/bitstream/1893/22618/1/Frenzl%20et%20al%20.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Frenzl B, Stien LH, Cockerill D, Oppedal F, Richards R, Shinn A, Bron J & Migaud H (2014) Manipulation of farmed Atlantic salmon swimming behaviour through the adjustment of lighting and feeding regimes as a tool for salmon lice control. Aquaculture, 424-425, pp. 183-188. https://doi.org/10.1016/j.aquaculture.2013.12.012 http://hdl.handle.net/1893/22618 doi:10.1016/j.aquaculture.2013.12.012 WOS:000332408400023 2-s2.0-84892894658 590698 http://dspace.stir.ac.uk/bitstream/1893/22618/1/Frenzl%20et%20al%20.pdf |
op_rights |
The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. http://www.rioxx.net/licenses/under-embargo-all-rights-reserved 2999-12-15 [Frenzl et al .pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work. |
op_doi |
https://doi.org/10.1016/j.aquaculture.2013.12.012 |
container_title |
Aquaculture |
container_volume |
424-425 |
container_start_page |
183 |
op_container_end_page |
188 |
_version_ |
1766361563414921216 |