Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding
Salmonids rank among the most socio-economically valuable fishes and the most targeted species by stocking with hatchery-reared individuals. Here, we used molecular parentage analysis to assess the reproductive success of wild- and hatchery- born Atlantic salmon over three consecutive years in a sma...
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Data Archiving and Networked Services (DANS)
2021
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Online Access: | https://doi.org/10.5061/dryad.4k739 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::4abd5198ec37dd07c4e1614ce1f87bfe 2023-05-15T15:31:49+02:00 Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding Milot, Emmanuel Perrier, Charles Papillon, Lucie Dodson, Julian J. Bernatchez, Louis 2021-06-29 https://doi.org/10.5061/dryad.4k739 undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.5061/dryad.4k739 https://dx.doi.org/10.5061/dryad.4k739 lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:82412 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:82412 10.5061/dryad.4k739 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care Captive Populations Fisheries Management Salmo salar Conservation Biology Population Genetics - Empirical conservation genetics Malbaie River La Malbaie Quebec Canada envir anthro-se Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2021 fttriple https://doi.org/10.5061/dryad.4k739 2023-01-22T17:42:10Z Salmonids rank among the most socio-economically valuable fishes and the most targeted species by stocking with hatchery-reared individuals. Here, we used molecular parentage analysis to assess the reproductive success of wild- and hatchery- born Atlantic salmon over three consecutive years in a small river in Québec. Yearly restocking in this river follows a single generation of captive breeding. Among the adults returning to the river to spawn, between 11% and 41% each year were born in hatchery. Their relative reproductive success (RRS) was nearly half that of wild-born fish (0.55). RRS varied with life stage, being 0.71 for fish released at the fry stage and 0.42 for fish released as smolt. The lower reproductive success of salmon released as smolt was partly mediated by modification of the proportion of single-sea-winter/multi-sea-winter fish. Overall, our results suggest that modifications in survival and growth rates alter the life-history strategies of these fish at the cost of their reproductive success. Our results underline the potential fitness decrease, warn on long-term evolutionary consequences for the population of repeated stocking and support the adoption of more natural rearing conditions for captive juveniles and their release at a younger stage, such as unfed fry. MILOTEVA2012DATAGenotypes at 8 microsatellite loci (coded by three digits) of adults and juveniles Salmo salar sampled in the Malbaie River from 2002 to 2005 and and at the local hatchery (order explained in the first line of the file). Dataset Atlantic salmon Salmo salar Unknown Canada |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Captive Populations Fisheries Management Salmo salar Conservation Biology Population Genetics - Empirical conservation genetics Malbaie River La Malbaie Quebec Canada envir anthro-se |
spellingShingle |
Life sciences medicine and health care Captive Populations Fisheries Management Salmo salar Conservation Biology Population Genetics - Empirical conservation genetics Malbaie River La Malbaie Quebec Canada envir anthro-se Milot, Emmanuel Perrier, Charles Papillon, Lucie Dodson, Julian J. Bernatchez, Louis Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding |
topic_facet |
Life sciences medicine and health care Captive Populations Fisheries Management Salmo salar Conservation Biology Population Genetics - Empirical conservation genetics Malbaie River La Malbaie Quebec Canada envir anthro-se |
description |
Salmonids rank among the most socio-economically valuable fishes and the most targeted species by stocking with hatchery-reared individuals. Here, we used molecular parentage analysis to assess the reproductive success of wild- and hatchery- born Atlantic salmon over three consecutive years in a small river in Québec. Yearly restocking in this river follows a single generation of captive breeding. Among the adults returning to the river to spawn, between 11% and 41% each year were born in hatchery. Their relative reproductive success (RRS) was nearly half that of wild-born fish (0.55). RRS varied with life stage, being 0.71 for fish released at the fry stage and 0.42 for fish released as smolt. The lower reproductive success of salmon released as smolt was partly mediated by modification of the proportion of single-sea-winter/multi-sea-winter fish. Overall, our results suggest that modifications in survival and growth rates alter the life-history strategies of these fish at the cost of their reproductive success. Our results underline the potential fitness decrease, warn on long-term evolutionary consequences for the population of repeated stocking and support the adoption of more natural rearing conditions for captive juveniles and their release at a younger stage, such as unfed fry. MILOTEVA2012DATAGenotypes at 8 microsatellite loci (coded by three digits) of adults and juveniles Salmo salar sampled in the Malbaie River from 2002 to 2005 and and at the local hatchery (order explained in the first line of the file). |
format |
Dataset |
author |
Milot, Emmanuel Perrier, Charles Papillon, Lucie Dodson, Julian J. Bernatchez, Louis |
author_facet |
Milot, Emmanuel Perrier, Charles Papillon, Lucie Dodson, Julian J. Bernatchez, Louis |
author_sort |
Milot, Emmanuel |
title |
Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding |
title_short |
Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding |
title_full |
Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding |
title_fullStr |
Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding |
title_full_unstemmed |
Data from: Reduced fitness of Atlantic salmon released in the wild after one generation of captive-breeding |
title_sort |
data from: reduced fitness of atlantic salmon released in the wild after one generation of captive-breeding |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2021 |
url |
https://doi.org/10.5061/dryad.4k739 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:82412 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:82412 10.5061/dryad.4k739 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.4k739 https://dx.doi.org/10.5061/dryad.4k739 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.4k739 |
_version_ |
1766362331162345472 |