Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar
In the future, an increasing number of salmon farms may be located in areas with fast water current velocity due to limited availability of more sheltered locations. However, there is little information as to how fast currents affect fish health and welfare. We used raceways to expose Atlantic salmo...
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ftunivbergen:oai:bora.uib.no:1956/10778 2023-05-15T15:31:41+02:00 Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar Solstorm, Frida Solstorm, David Oppedal, Frode Fernø, Anders Fraser, Thomas Olsen, Rolf Erik 2015-09-22T12:31:27Z application/pdf https://hdl.handle.net/1956/10778 https://doi.org/10.3354/aei00143 eng eng Inter-Research The effect of water currents on post-smolt Atlantic salmon, Salmo salar (L.). A welfare approach to exposed aquaculture Norges forskningsråd: 207116 urn:issn:1869-7534 https://hdl.handle.net/1956/10778 https://doi.org/10.3354/aei00143 cristin:1266152 Attribution CC BY http://creativecommons.org/licenses/by/3.0 Copyright the authors 2015 Aquaculture Stress Swimming VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Aquaculture: 922 VDP::Matematikk og Naturvitenskap: 400 Peer reviewed Journal article 2015 ftunivbergen https://doi.org/10.3354/aei00143 2023-03-14T17:43:08Z In the future, an increasing number of salmon farms may be located in areas with fast water current velocity due to limited availability of more sheltered locations. However, there is little information as to how fast currents affect fish health and welfare. We used raceways to expose Atlantic salmon post-smolts (98.6 g, 22.3 cm) to homogeneous water velocities corresponding to 0.2, 0.8 and 1.5 body lengths s-1 (slow, moderate and fast, respectively) over 6 wk. Fish at fast velocity had a 5% lower weight gain compared to fish at moderate and slow velocities, with a corresponding reduction in length. Fish at moderate and fast velocities had lower lipid content in the muscle compared to fish at slow velocity. Hence, fish at slow and moderate velocities had the same weight gain, but fish at slow velocity gained more fat and fish at moderate velocity more muscle protein. Fish at fast velocity had a higher relative ventricular mass, indicating an increased cardiac workload. At slow velocity, individual fish displayed elevated plasma levels of lactate, osmolality and potassium. Our results suggest that post-smolts had the best growth and welfare at moderate velocity and that a current velocity of 1.5 body lengths s-1 could compromise production performance. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar University of Bergen: Bergen Open Research Archive (BORA-UiB) Aquaculture Environment Interactions 7 2 125 134 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Aquaculture Stress Swimming VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Aquaculture: 922 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
Aquaculture Stress Swimming VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Aquaculture: 922 VDP::Matematikk og Naturvitenskap: 400 Solstorm, Frida Solstorm, David Oppedal, Frode Fernø, Anders Fraser, Thomas Olsen, Rolf Erik Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar |
topic_facet |
Aquaculture Stress Swimming VDP::Landbruks- og fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Agriculture and fisheries science: 900::Fisheries science: 920::Aquaculture: 922 VDP::Matematikk og Naturvitenskap: 400 |
description |
In the future, an increasing number of salmon farms may be located in areas with fast water current velocity due to limited availability of more sheltered locations. However, there is little information as to how fast currents affect fish health and welfare. We used raceways to expose Atlantic salmon post-smolts (98.6 g, 22.3 cm) to homogeneous water velocities corresponding to 0.2, 0.8 and 1.5 body lengths s-1 (slow, moderate and fast, respectively) over 6 wk. Fish at fast velocity had a 5% lower weight gain compared to fish at moderate and slow velocities, with a corresponding reduction in length. Fish at moderate and fast velocities had lower lipid content in the muscle compared to fish at slow velocity. Hence, fish at slow and moderate velocities had the same weight gain, but fish at slow velocity gained more fat and fish at moderate velocity more muscle protein. Fish at fast velocity had a higher relative ventricular mass, indicating an increased cardiac workload. At slow velocity, individual fish displayed elevated plasma levels of lactate, osmolality and potassium. Our results suggest that post-smolts had the best growth and welfare at moderate velocity and that a current velocity of 1.5 body lengths s-1 could compromise production performance. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Solstorm, Frida Solstorm, David Oppedal, Frode Fernø, Anders Fraser, Thomas Olsen, Rolf Erik |
author_facet |
Solstorm, Frida Solstorm, David Oppedal, Frode Fernø, Anders Fraser, Thomas Olsen, Rolf Erik |
author_sort |
Solstorm, Frida |
title |
Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar |
title_short |
Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar |
title_full |
Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar |
title_fullStr |
Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar |
title_full_unstemmed |
Fast water currents reduce production performance of post-smolt Atlantic salmon Salmo salar |
title_sort |
fast water currents reduce production performance of post-smolt atlantic salmon salmo salar |
publisher |
Inter-Research |
publishDate |
2015 |
url |
https://hdl.handle.net/1956/10778 https://doi.org/10.3354/aei00143 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
The effect of water currents on post-smolt Atlantic salmon, Salmo salar (L.). A welfare approach to exposed aquaculture Norges forskningsråd: 207116 urn:issn:1869-7534 https://hdl.handle.net/1956/10778 https://doi.org/10.3354/aei00143 cristin:1266152 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/3.0 Copyright the authors 2015 |
op_doi |
https://doi.org/10.3354/aei00143 |
container_title |
Aquaculture Environment Interactions |
container_volume |
7 |
container_issue |
2 |
container_start_page |
125 |
op_container_end_page |
134 |
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1766362205485268992 |