Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar)
The aim of this study was to demonstrate the feasibility of acoustic telemetry for monitoring fish during farm operations and gather knowledge about Atlantic salmon responses during crowding and delousing events in a commercial sea-cage. 21 fish were equipped with a novel transmitter tag type using...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://hdl.handle.net/11250/2507450 https://doi.org/10.1016/j.aquaculture.2018.06.060 |
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ftsintef:oai:sintef.brage.unit.no:11250/2507450 2023-05-15T15:30:55+02:00 Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) Føre, Martin Svendsen, Eirik Alfredsen, Jo Arve Uglem, Ingebrigt Bloecher, Nina Sveier, Harald Sunde, Leif Magne Frank, Kevin 2018-10-01 application/pdf http://hdl.handle.net/11250/2507450 https://doi.org/10.1016/j.aquaculture.2018.06.060 eng eng Elsevier Aquaculture. 2018, 495 757-765. urn:issn:0044-8486 http://hdl.handle.net/11250/2507450 https://doi.org/10.1016/j.aquaculture.2018.06.060 cristin:1599702 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2018 The Authors. Published by Elsevier B.V. CC-BY 757-765 495 Aquaculture Journal article Peer reviewed 2018 ftsintef https://doi.org/10.1016/j.aquaculture.2018.06.060 2021-08-04T11:59:48Z The aim of this study was to demonstrate the feasibility of acoustic telemetry for monitoring fish during farm operations and gather knowledge about Atlantic salmon responses during crowding and delousing events in a commercial sea-cage. 21 fish were equipped with a novel transmitter tag type using data from pressure sensors and accelerometers to compute swimming depth and swimming activity of individual fish. The fish were monitored over four months, during which they were subjected to three thermal delousing events. In the periods before and after delousing, the fish generally exhibited a circadian rhythm in both swimming activity and depth, with high activity and deep swimming during daytime and low activity and shallow swimming during night. Swimming activity recorded during crowding and delousing events was significantly higher than background swimming activity levels registered a day before and after delousing. Although activity levels differed significantly between the three events and between the different stages within each event, the highest activity levels were consistently measured during thermal treatment. Swimming depth differed significantly between delousing events and was strongly influenced by daylight. In summary, crowding and delousing induced increased movement in the fish, while swimming depth appeared to be less sensitive to these operations. The conclusion of the study is that acoustic telemetry is a suitable tool for monitoring fish during challenging operations such as crowding and delousing, as well as during normal cage management. Moreover, this study provides new knowledge on how the behaviour of Atlantic salmon may be affected by delousing. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar SINTEF Open (Brage) Aquaculture 495 757 765 |
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language |
English |
description |
The aim of this study was to demonstrate the feasibility of acoustic telemetry for monitoring fish during farm operations and gather knowledge about Atlantic salmon responses during crowding and delousing events in a commercial sea-cage. 21 fish were equipped with a novel transmitter tag type using data from pressure sensors and accelerometers to compute swimming depth and swimming activity of individual fish. The fish were monitored over four months, during which they were subjected to three thermal delousing events. In the periods before and after delousing, the fish generally exhibited a circadian rhythm in both swimming activity and depth, with high activity and deep swimming during daytime and low activity and shallow swimming during night. Swimming activity recorded during crowding and delousing events was significantly higher than background swimming activity levels registered a day before and after delousing. Although activity levels differed significantly between the three events and between the different stages within each event, the highest activity levels were consistently measured during thermal treatment. Swimming depth differed significantly between delousing events and was strongly influenced by daylight. In summary, crowding and delousing induced increased movement in the fish, while swimming depth appeared to be less sensitive to these operations. The conclusion of the study is that acoustic telemetry is a suitable tool for monitoring fish during challenging operations such as crowding and delousing, as well as during normal cage management. Moreover, this study provides new knowledge on how the behaviour of Atlantic salmon may be affected by delousing. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Føre, Martin Svendsen, Eirik Alfredsen, Jo Arve Uglem, Ingebrigt Bloecher, Nina Sveier, Harald Sunde, Leif Magne Frank, Kevin |
spellingShingle |
Føre, Martin Svendsen, Eirik Alfredsen, Jo Arve Uglem, Ingebrigt Bloecher, Nina Sveier, Harald Sunde, Leif Magne Frank, Kevin Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) |
author_facet |
Føre, Martin Svendsen, Eirik Alfredsen, Jo Arve Uglem, Ingebrigt Bloecher, Nina Sveier, Harald Sunde, Leif Magne Frank, Kevin |
author_sort |
Føre, Martin |
title |
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) |
title_short |
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) |
title_full |
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) |
title_fullStr |
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed Atlantic salmon (Salmo salar) |
title_sort |
using acoustic telemetry to monitor the effects of crowding and delousing procedures on farmed atlantic salmon (salmo salar) |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2507450 https://doi.org/10.1016/j.aquaculture.2018.06.060 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
757-765 495 Aquaculture |
op_relation |
Aquaculture. 2018, 495 757-765. urn:issn:0044-8486 http://hdl.handle.net/11250/2507450 https://doi.org/10.1016/j.aquaculture.2018.06.060 cristin:1599702 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2018 The Authors. Published by Elsevier B.V. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.aquaculture.2018.06.060 |
container_title |
Aquaculture |
container_volume |
495 |
container_start_page |
757 |
op_container_end_page |
765 |
_version_ |
1766361401982451712 |