Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions?
- The conditions encountered by Atlantic salmon, Salmo salar L., in aquaculture are markedly different from the natural environment. Typically, farmed salmon experience much higher densities than wild individuals, and may therefore have adapted to living in high densities. Previous studies have demo...
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Language: | English |
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Online Access: | http://hdl.handle.net/11250/2407498 https://doi.org/10.1098/rsos.160152 |
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ftimr:oai:imr.brage.unit.no:11250/2407498 2023-05-15T15:31:23+02:00 Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? Harvey, Alison C. Juleff, Gareth Carvalho, Gary R. Taylor, Martin I. Solberg, Monica Favnebøe Creer, Simon Dyrhovden, Lise Matre, Ivar Helge Glover, Kevin 2016-09-05T12:15:55Z application/pdf http://hdl.handle.net/11250/2407498 https://doi.org/10.1098/rsos.160152 eng eng The Royal Society EU/311920 Royal Society Open Science 2016, 3:160152(7) urn:issn:2054-5703 http://hdl.handle.net/11250/2407498 https://doi.org/10.1098/rsos.160152 cristin:1374815 Navngivelse-DelPåSammeVilkår 3.0 Norge http://creativecommons.org/licenses/by-sa/3.0/no/ CC-BY-SA Royal Society Open Science Journal article Peer reviewed 2016 ftimr https://doi.org/10.1098/rsos.160152 2021-09-23T20:14:57Z - The conditions encountered by Atlantic salmon, Salmo salar L., in aquaculture are markedly different from the natural environment. Typically, farmed salmon experience much higher densities than wild individuals, and may therefore have adapted to living in high densities. Previous studies have demonstrated that farmed salmon typically outgrow wild salmon by large ratios in the hatchery, but these differences are much less pronounced in the wild. Such divergence in growth may be explained partly by the offspring of wild salmon experiencing higher stress and thus lower growth when compared under high-density farming conditions. Here, growth of farmed, wild and F1 hybrid salmon was studied at contrasting densities within a hatchery and semi-natural environment. Farmed salmon significantly outgrew hybrid and wild salmon in all treatments. Importantly, however, the reaction norms were similar across treatments for all groups. Thus, this study was unable to find evidence that the offspring of farmed salmon have adapted more readily to higher fish densities than wild salmon as a result of domestication. It is suggested that the substantially higher growth rate of farmed salmon observed in the hatchery compared with wild individuals may not solely be caused by differences in their ability to grow in high-density hatchery scenarios. Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Royal Society Open Science 3 7 160152 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
- The conditions encountered by Atlantic salmon, Salmo salar L., in aquaculture are markedly different from the natural environment. Typically, farmed salmon experience much higher densities than wild individuals, and may therefore have adapted to living in high densities. Previous studies have demonstrated that farmed salmon typically outgrow wild salmon by large ratios in the hatchery, but these differences are much less pronounced in the wild. Such divergence in growth may be explained partly by the offspring of wild salmon experiencing higher stress and thus lower growth when compared under high-density farming conditions. Here, growth of farmed, wild and F1 hybrid salmon was studied at contrasting densities within a hatchery and semi-natural environment. Farmed salmon significantly outgrew hybrid and wild salmon in all treatments. Importantly, however, the reaction norms were similar across treatments for all groups. Thus, this study was unable to find evidence that the offspring of farmed salmon have adapted more readily to higher fish densities than wild salmon as a result of domestication. It is suggested that the substantially higher growth rate of farmed salmon observed in the hatchery compared with wild individuals may not solely be caused by differences in their ability to grow in high-density hatchery scenarios. |
format |
Article in Journal/Newspaper |
author |
Harvey, Alison C. Juleff, Gareth Carvalho, Gary R. Taylor, Martin I. Solberg, Monica Favnebøe Creer, Simon Dyrhovden, Lise Matre, Ivar Helge Glover, Kevin |
spellingShingle |
Harvey, Alison C. Juleff, Gareth Carvalho, Gary R. Taylor, Martin I. Solberg, Monica Favnebøe Creer, Simon Dyrhovden, Lise Matre, Ivar Helge Glover, Kevin Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? |
author_facet |
Harvey, Alison C. Juleff, Gareth Carvalho, Gary R. Taylor, Martin I. Solberg, Monica Favnebøe Creer, Simon Dyrhovden, Lise Matre, Ivar Helge Glover, Kevin |
author_sort |
Harvey, Alison C. |
title |
Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? |
title_short |
Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? |
title_full |
Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? |
title_fullStr |
Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? |
title_full_unstemmed |
Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? |
title_sort |
does density influence relative growth performance of farm, wild and f1 hybrid atlantic salmon in semi-natural and hatchery common garden conditions? |
publisher |
The Royal Society |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2407498 https://doi.org/10.1098/rsos.160152 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Royal Society Open Science |
op_relation |
EU/311920 Royal Society Open Science 2016, 3:160152(7) urn:issn:2054-5703 http://hdl.handle.net/11250/2407498 https://doi.org/10.1098/rsos.160152 cristin:1374815 |
op_rights |
Navngivelse-DelPåSammeVilkår 3.0 Norge http://creativecommons.org/licenses/by-sa/3.0/no/ |
op_rightsnorm |
CC-BY-SA |
op_doi |
https://doi.org/10.1098/rsos.160152 |
container_title |
Royal Society Open Science |
container_volume |
3 |
container_issue |
7 |
container_start_page |
160152 |
_version_ |
1766361885303635968 |