Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak
1. Parasitic diseases represent one of the greatest challenges for aquaculture worldwide and there is an increasing emphasis on ecological solutions to prevent infections. One proposed solution is enriched rearing, where traditional stimulus-poor rearing tanks are equipped with different types of st...
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ftdryad:oai:v1.datadryad.org:10255/dryad.211446 2023-05-15T15:32:12+02:00 Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak Räihä, Ville Sundberg, Lotta-Riina Ashrafi, Roghaieh Hyvärinen, Pekka Karvonen, Anssi 2019-04-10T14:16:25Z http://hdl.handle.net/10255/dryad.211446 https://doi.org/10.5061/dryad.nd637r5 unknown doi:10.5061/dryad.nd637r5/1 doi:10.1111/1365-2664.13393 doi:10.5061/dryad.nd637r5 Räihä V, Sundberg L, Ashrafi R, Hyvärinen P, Karvonen A (2019) Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak. Journal of Applied Ecology. http://hdl.handle.net/10255/dryad.211446 Aquaculture Disease epidemiology Enriched rearing Flavobacterium columnare Genetic variation Atlantic salmon Brown trout Antibiotics Article 2019 ftdryad https://doi.org/10.5061/dryad.nd637r5 https://doi.org/10.5061/dryad.nd637r5/1 https://doi.org/10.1111/1365-2664.13393 2020-01-01T16:25:55Z 1. Parasitic diseases represent one of the greatest challenges for aquaculture worldwide and there is an increasing emphasis on ecological solutions to prevent infections. One proposed solution is enriched rearing, where traditional stimulus-poor rearing tanks are equipped with different types of structures to increase habitat complexity. Such spatial enrichment is known to increase survival of fish during parasite epidemics, but the underlying mechanisms are still unclear. 2. We studied whether enriched rearing affected infection of an important fish pathogen Flavobacterium columnare in young Atlantic salmon (Salmo salar) and sea-migrating brown trout (Salmo trutta). First, we used natural bacterial exposures and multiple fish populations in a common garden experiment to address the role of host genetic background in effects of enriched rearing. Second, fish from standard and enriched rearing were experimentally exposed to controlled bacterial doses in standard and enriched environments in a full factorial design to explore the relative roles of rearing background and environment of exposure on survival of fish. 3. Enriched rearing significantly increased survival of fish during the natural bacterial outbreak. This effect was also fairly consistent and observed in eight of the ten fish populations. In the controlled exposure, fish exposed in enriched environment had higher survival regardless of their rearing background, suggesting a stronger impact of the environment on the disease progression. Additionally, the survival in the enriched environment was highest among the fish of enriched rearing background, supporting the idea of their higher resistance. 4. Synthesis and applications. Our result suggests that the enhanced survival of fish in enriched rearing results from a combined effect of the environment and improved fish condition, and to a lesser degree from host genetic background. This has important implications for when and how environmental enrichment should be applied. Overall, these results indicate that environmental enrichment has the potential to improve survival of fish during parasitic epidemics and thus reduce use of antibiotics in aquaculture. Article in Journal/Newspaper Atlantic salmon Salmo salar Dryad Digital Repository (Duke University) |
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Dryad Digital Repository (Duke University) |
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topic |
Aquaculture Disease epidemiology Enriched rearing Flavobacterium columnare Genetic variation Atlantic salmon Brown trout Antibiotics |
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Aquaculture Disease epidemiology Enriched rearing Flavobacterium columnare Genetic variation Atlantic salmon Brown trout Antibiotics Räihä, Ville Sundberg, Lotta-Riina Ashrafi, Roghaieh Hyvärinen, Pekka Karvonen, Anssi Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
topic_facet |
Aquaculture Disease epidemiology Enriched rearing Flavobacterium columnare Genetic variation Atlantic salmon Brown trout Antibiotics |
description |
1. Parasitic diseases represent one of the greatest challenges for aquaculture worldwide and there is an increasing emphasis on ecological solutions to prevent infections. One proposed solution is enriched rearing, where traditional stimulus-poor rearing tanks are equipped with different types of structures to increase habitat complexity. Such spatial enrichment is known to increase survival of fish during parasite epidemics, but the underlying mechanisms are still unclear. 2. We studied whether enriched rearing affected infection of an important fish pathogen Flavobacterium columnare in young Atlantic salmon (Salmo salar) and sea-migrating brown trout (Salmo trutta). First, we used natural bacterial exposures and multiple fish populations in a common garden experiment to address the role of host genetic background in effects of enriched rearing. Second, fish from standard and enriched rearing were experimentally exposed to controlled bacterial doses in standard and enriched environments in a full factorial design to explore the relative roles of rearing background and environment of exposure on survival of fish. 3. Enriched rearing significantly increased survival of fish during the natural bacterial outbreak. This effect was also fairly consistent and observed in eight of the ten fish populations. In the controlled exposure, fish exposed in enriched environment had higher survival regardless of their rearing background, suggesting a stronger impact of the environment on the disease progression. Additionally, the survival in the enriched environment was highest among the fish of enriched rearing background, supporting the idea of their higher resistance. 4. Synthesis and applications. Our result suggests that the enhanced survival of fish in enriched rearing results from a combined effect of the environment and improved fish condition, and to a lesser degree from host genetic background. This has important implications for when and how environmental enrichment should be applied. Overall, these results indicate that environmental enrichment has the potential to improve survival of fish during parasitic epidemics and thus reduce use of antibiotics in aquaculture. |
format |
Article in Journal/Newspaper |
author |
Räihä, Ville Sundberg, Lotta-Riina Ashrafi, Roghaieh Hyvärinen, Pekka Karvonen, Anssi |
author_facet |
Räihä, Ville Sundberg, Lotta-Riina Ashrafi, Roghaieh Hyvärinen, Pekka Karvonen, Anssi |
author_sort |
Räihä, Ville |
title |
Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
title_short |
Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
title_full |
Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
title_fullStr |
Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
title_full_unstemmed |
Data from: Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
title_sort |
data from: rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.211446 https://doi.org/10.5061/dryad.nd637r5 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
doi:10.5061/dryad.nd637r5/1 doi:10.1111/1365-2664.13393 doi:10.5061/dryad.nd637r5 Räihä V, Sundberg L, Ashrafi R, Hyvärinen P, Karvonen A (2019) Rearing background and exposure environment together explain higher survival of aquaculture fish during a bacterial outbreak. Journal of Applied Ecology. http://hdl.handle.net/10255/dryad.211446 |
op_doi |
https://doi.org/10.5061/dryad.nd637r5 https://doi.org/10.5061/dryad.nd637r5/1 https://doi.org/10.1111/1365-2664.13393 |
_version_ |
1766362708470398976 |