Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages
This thesis aims to describe behavioural responses and welfare parameters for the physostome Atlantic salmon and physoclist Atlantic cod when out of neutral buoyancy at different degrees and periods of time. The background for this approach is to improve the culture conditions by fully submergence o...
Published in: | Aquaculture |
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Main Author: | |
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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The University of Bergen
2011
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Subjects: | |
Online Access: | http://hdl.handle.net/1956/4608 |
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ftunivbergen:oai:bora.uib.no:1956/4608 |
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Open Polar |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Korsøen, Øyvind Johan Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 |
description |
This thesis aims to describe behavioural responses and welfare parameters for the physostome Atlantic salmon and physoclist Atlantic cod when out of neutral buoyancy at different degrees and periods of time. The background for this approach is to improve the culture conditions by fully submergence of the farming installations, as the water below 10 m depth often is more stable in terms of environmental factors such as temperature and current in addition to the lack of waves, which again opens for alternative sites in more exposed oceanic areas. Salmon were submerged in large-scale fully submersible cages at depths between 4 to 15 m for 22 days (Paper I) and 10 to 25 m for 42 days (Paper II) under different light conditions and at various times of year. The behaviour of individual salmon in a school under submerged conditions was studied to reveal whether a range of coping abilities among individuals exists during the new and more challenging conditions (Paper III). Atlantic cod in an experimental submersible cage were raised from five different starting depths (between 30 and 8 m) and lowered from surface position to 10 m, 20 m and 30 m to test a protocol for safe lifting and lowering steps. Based on the behavioural responses, safe acclimation times before the next vertical step at high and low sea temperatures were identified (Paper IV). In Papers I and II, the general patterns of swimming depth and schooling density were studied at group level using echo-sounders in addition to swimming speed and swimming angle based on instantaneous observations with underwater cameras. Welfare parameters were defined as weight gain, feed intake, feed utilisation and fin and vertebral condition during the experimental period. The behaviour of individual salmon was studied by monitoring the swimming depth and body temperature using data storage tags implanted in randomly selected fish. Whether the development of diel vertical migration (DVM) activity during feeding was linked with individual growth rates was analysed to study ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Korsøen, Øyvind Johan |
author_facet |
Korsøen, Øyvind Johan |
author_sort |
Korsøen, Øyvind Johan |
title |
Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages |
title_short |
Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages |
title_full |
Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages |
title_fullStr |
Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages |
title_full_unstemmed |
Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages |
title_sort |
biological criteria for submergence of physostome (atlantic salmon) and physoclist (atlantic cod) fish in sea-cages |
publisher |
The University of Bergen |
publishDate |
2011 |
url |
http://hdl.handle.net/1956/4608 |
genre |
atlantic cod Atlantic salmon |
genre_facet |
atlantic cod Atlantic salmon |
op_relation |
Paper 1: Aquaculture 288, Dempster, T.; Korsøen, Ø.; Folkedal, O.; Juell, J. E.; Oppedal, F., Submergence of Atlantic salmon (Salmo salar) in sea-cages: a potential short-term solution to poor surface conditions, pp. 254-263. Published version. Copyright 2008 Elsevier B.V. All rights reserved. Full text not available in BORA. The published version is available at: http://dx.doi.org/10.1016/j.aquaculture.2008.12.003 Paper 2: Aquaculture 296, Korsøen, Ø. J.; Dempster, T.; Fjelldal, P. G.; Oppedal, F.; Kristiansen, T. S., Long-term culture of Atlantic salmon (Salmo salar L.) in submerged cages during winter affects behaviour, growth and condition, pp. 373-381. Published version. Copyright 2009 Elsevier B.V. All rights reserved. Full text not available in BORA. The published version is available at: http://dx.doi.org/10.1016/j.aquaculture.2009.08.036 Paper 3: Korsøen, Ø. J.; Dempster, T.; Oppedal, F.; Kristiansen, T. S., Individual variation in growth and vertical swimming behaviour in Atlantic salmon (Salmo salar L.) subjected to submergence in sea-cages. Manuscript. Full text not available in BORA. Paper 4: Aquaculture 308, Korsøen, Ø. J.; Dempster, T.; Fosseidengen, J. E.; Fernö, A.; Heegaard, E. and Kristiansen, T. S., Behavioural responses to pressure changes in cultured Atlantic cod (Gadus morhua): Defining practical limits for submerging and lifting sea-cages, pp. 106-115. Published version. Copyright 2010 Elsevier B.V. All rights reserved. Full text not available in BORA. The published version is available at: http://dx.doi.org/10.1016/j.aquaculture.2010.08.011 urn:isbn:9788230817162 (print version) http://hdl.handle.net/1956/4608 |
op_rights |
The author Copyright the author. All rights reserved |
op_doi |
https://doi.org/10.1016/j.aquaculture.2008.12.00310.1016/j.aquaculture.2009.08.03610.1016/j.aquaculture.2010.08.011 |
container_title |
Aquaculture |
container_volume |
288 |
container_issue |
3-4 |
container_start_page |
254 |
op_container_end_page |
263 |
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1766357703661191168 |
spelling |
ftunivbergen:oai:bora.uib.no:1956/4608 2023-05-15T15:27:15+02:00 Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages Korsøen, Øyvind Johan 2011-03-11 application/pdf http://hdl.handle.net/1956/4608 eng eng The University of Bergen Paper 1: Aquaculture 288, Dempster, T.; Korsøen, Ø.; Folkedal, O.; Juell, J. E.; Oppedal, F., Submergence of Atlantic salmon (Salmo salar) in sea-cages: a potential short-term solution to poor surface conditions, pp. 254-263. Published version. Copyright 2008 Elsevier B.V. All rights reserved. Full text not available in BORA. The published version is available at: http://dx.doi.org/10.1016/j.aquaculture.2008.12.003 Paper 2: Aquaculture 296, Korsøen, Ø. J.; Dempster, T.; Fjelldal, P. G.; Oppedal, F.; Kristiansen, T. S., Long-term culture of Atlantic salmon (Salmo salar L.) in submerged cages during winter affects behaviour, growth and condition, pp. 373-381. Published version. Copyright 2009 Elsevier B.V. All rights reserved. Full text not available in BORA. The published version is available at: http://dx.doi.org/10.1016/j.aquaculture.2009.08.036 Paper 3: Korsøen, Ø. J.; Dempster, T.; Oppedal, F.; Kristiansen, T. S., Individual variation in growth and vertical swimming behaviour in Atlantic salmon (Salmo salar L.) subjected to submergence in sea-cages. Manuscript. Full text not available in BORA. Paper 4: Aquaculture 308, Korsøen, Ø. J.; Dempster, T.; Fosseidengen, J. E.; Fernö, A.; Heegaard, E. and Kristiansen, T. S., Behavioural responses to pressure changes in cultured Atlantic cod (Gadus morhua): Defining practical limits for submerging and lifting sea-cages, pp. 106-115. Published version. Copyright 2010 Elsevier B.V. All rights reserved. Full text not available in BORA. The published version is available at: http://dx.doi.org/10.1016/j.aquaculture.2010.08.011 urn:isbn:9788230817162 (print version) http://hdl.handle.net/1956/4608 The author Copyright the author. All rights reserved VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 Doctoral thesis 2011 ftunivbergen https://doi.org/10.1016/j.aquaculture.2008.12.00310.1016/j.aquaculture.2009.08.03610.1016/j.aquaculture.2010.08.011 2023-03-14T17:42:51Z This thesis aims to describe behavioural responses and welfare parameters for the physostome Atlantic salmon and physoclist Atlantic cod when out of neutral buoyancy at different degrees and periods of time. The background for this approach is to improve the culture conditions by fully submergence of the farming installations, as the water below 10 m depth often is more stable in terms of environmental factors such as temperature and current in addition to the lack of waves, which again opens for alternative sites in more exposed oceanic areas. Salmon were submerged in large-scale fully submersible cages at depths between 4 to 15 m for 22 days (Paper I) and 10 to 25 m for 42 days (Paper II) under different light conditions and at various times of year. The behaviour of individual salmon in a school under submerged conditions was studied to reveal whether a range of coping abilities among individuals exists during the new and more challenging conditions (Paper III). Atlantic cod in an experimental submersible cage were raised from five different starting depths (between 30 and 8 m) and lowered from surface position to 10 m, 20 m and 30 m to test a protocol for safe lifting and lowering steps. Based on the behavioural responses, safe acclimation times before the next vertical step at high and low sea temperatures were identified (Paper IV). In Papers I and II, the general patterns of swimming depth and schooling density were studied at group level using echo-sounders in addition to swimming speed and swimming angle based on instantaneous observations with underwater cameras. Welfare parameters were defined as weight gain, feed intake, feed utilisation and fin and vertebral condition during the experimental period. The behaviour of individual salmon was studied by monitoring the swimming depth and body temperature using data storage tags implanted in randomly selected fish. Whether the development of diel vertical migration (DVM) activity during feeding was linked with individual growth rates was analysed to study ... Doctoral or Postdoctoral Thesis atlantic cod Atlantic salmon University of Bergen: Bergen Open Research Archive (BORA-UiB) Aquaculture 288 3-4 254 263 |