Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity
The release of captive-bred animals into the wild is commonly practiced to restore or supplement wild populations but comes with a suite of ecological and genetic consequences. Vast numbers of hatchery-reared fish are released annually, ostensibly to restore/enhance wild populations or provide great...
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2020
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ftdatacite:10.6084/m9.figshare.13072410 2023-05-15T15:31:33+02:00 Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity O'Sullivan, Ronan James Aykanat, Tutku Johnston, Susan E. Rogan, Ger Poole, Russell Prodöhl, Paulo A. Eyto, Elvira De Primmer, Craig R. McGinnity, Philip Reed, Thomas Eric 2020 https://dx.doi.org/10.6084/m9.figshare.13072410 https://rs.figshare.com/articles/journal_contribution/Supplementary_material_from_Captive-bred_Atlantic_salmon_released_into_the_wild_have_fewer_offspring_than_wild-bred_fish_and_decrease_population_productivity/13072410 unknown The Royal Society https://dx.doi.org/10.1098/rspb.2020.1671 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Genetics FOS Biological sciences Evolutionary Biology Ecology Text article-journal Journal contribution ScholarlyArticle 2020 ftdatacite https://doi.org/10.6084/m9.figshare.13072410 https://doi.org/10.1098/rspb.2020.1671 2021-11-05T12:55:41Z The release of captive-bred animals into the wild is commonly practiced to restore or supplement wild populations but comes with a suite of ecological and genetic consequences. Vast numbers of hatchery-reared fish are released annually, ostensibly to restore/enhance wild populations or provide greater angling returns. While previous studies have shown that captive-bred fish perform poorly in the wild relative to wild-bred conspecifics, few have measured individual lifetime reproductive success (LRS) and how this affects population productivity. Here, we analyse data on Atlantic salmon from an intensely studied catchment into which varying numbers of captive-bred fish have escaped/been released and potentially bred over several decades. Using a molecular pedigree, we demonstrate that, on average, the LRS of captive-bred individuals was only 36% that of wild-bred individuals. A significant LRS difference remained after excluding individuals that left no surviving offspring, some of which might have simply failed to spawn, consistent with transgenerational effects on offspring survival. The annual productivity of the mixed population (wild-bred plus captive-bred) was lower in years where captive-bred fish comprised a greater fraction of potential spawners. These results bolster previous empirical and theoretical findings that intentional stocking, or non-intentional escapees, threaten, rather than enhance, recipient natural populations. Text Atlantic salmon DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
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topic |
Genetics FOS Biological sciences Evolutionary Biology Ecology |
spellingShingle |
Genetics FOS Biological sciences Evolutionary Biology Ecology O'Sullivan, Ronan James Aykanat, Tutku Johnston, Susan E. Rogan, Ger Poole, Russell Prodöhl, Paulo A. Eyto, Elvira De Primmer, Craig R. McGinnity, Philip Reed, Thomas Eric Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
topic_facet |
Genetics FOS Biological sciences Evolutionary Biology Ecology |
description |
The release of captive-bred animals into the wild is commonly practiced to restore or supplement wild populations but comes with a suite of ecological and genetic consequences. Vast numbers of hatchery-reared fish are released annually, ostensibly to restore/enhance wild populations or provide greater angling returns. While previous studies have shown that captive-bred fish perform poorly in the wild relative to wild-bred conspecifics, few have measured individual lifetime reproductive success (LRS) and how this affects population productivity. Here, we analyse data on Atlantic salmon from an intensely studied catchment into which varying numbers of captive-bred fish have escaped/been released and potentially bred over several decades. Using a molecular pedigree, we demonstrate that, on average, the LRS of captive-bred individuals was only 36% that of wild-bred individuals. A significant LRS difference remained after excluding individuals that left no surviving offspring, some of which might have simply failed to spawn, consistent with transgenerational effects on offspring survival. The annual productivity of the mixed population (wild-bred plus captive-bred) was lower in years where captive-bred fish comprised a greater fraction of potential spawners. These results bolster previous empirical and theoretical findings that intentional stocking, or non-intentional escapees, threaten, rather than enhance, recipient natural populations. |
format |
Text |
author |
O'Sullivan, Ronan James Aykanat, Tutku Johnston, Susan E. Rogan, Ger Poole, Russell Prodöhl, Paulo A. Eyto, Elvira De Primmer, Craig R. McGinnity, Philip Reed, Thomas Eric |
author_facet |
O'Sullivan, Ronan James Aykanat, Tutku Johnston, Susan E. Rogan, Ger Poole, Russell Prodöhl, Paulo A. Eyto, Elvira De Primmer, Craig R. McGinnity, Philip Reed, Thomas Eric |
author_sort |
O'Sullivan, Ronan James |
title |
Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
title_short |
Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
title_full |
Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
title_fullStr |
Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
title_full_unstemmed |
Supplementary material from Captive-bred Atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
title_sort |
supplementary material from captive-bred atlantic salmon released into the wild have fewer offspring than wild-bred fish and decrease population productivity |
publisher |
The Royal Society |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.13072410 https://rs.figshare.com/articles/journal_contribution/Supplementary_material_from_Captive-bred_Atlantic_salmon_released_into_the_wild_have_fewer_offspring_than_wild-bred_fish_and_decrease_population_productivity/13072410 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
https://dx.doi.org/10.1098/rspb.2020.1671 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.13072410 https://doi.org/10.1098/rspb.2020.1671 |
_version_ |
1766362075902246912 |