Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield
Response to divergent selection for "high" and "low" survival during the summer period, from July to October, was investigated in juvenile (six-month-old) Pacific oysters, Crassostrea gigas, by producing two sets of progenies in 2002 (Generation 2) and three sets of progenies in...
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Online Access: | https://archimer.ifremer.fr/doc/2009/publication-6950.pdf https://doi.org/10.1016/j.aquaculture.2009.11.017 https://archimer.ifremer.fr/doc/00000/6950/ |
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ftarchimer:oai:archimer.ifremer.fr:6950 2023-05-15T15:57:39+02:00 Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield Degremont, Lionel Bedier, Edouard Boudry, Pierre 2010-02 application/pdf https://archimer.ifremer.fr/doc/2009/publication-6950.pdf https://doi.org/10.1016/j.aquaculture.2009.11.017 https://archimer.ifremer.fr/doc/00000/6950/ eng eng Elsevier Science Bv https://archimer.ifremer.fr/doc/2009/publication-6950.pdf doi:10.1016/j.aquaculture.2009.11.017 https://archimer.ifremer.fr/doc/00000/6950/ 2010 Elsevier Ltd All rights reserved. info:eu-repo/semantics/openAccess restricted use Aquaculture (0044-8486) (Elsevier Science Bv), 2010-02 , Vol. 299 , N. 1-4 , P. 21-29 Crassostrea gigas Heritability Juveniles Summer mortality Survival Growth text Publication info:eu-repo/semantics/article 2010 ftarchimer https://doi.org/10.1016/j.aquaculture.2009.11.017 2021-09-23T20:17:39Z Response to divergent selection for "high" and "low" survival during the summer period, from July to October, was investigated in juvenile (six-month-old) Pacific oysters, Crassostrea gigas, by producing two sets of progenies in 2002 (Generation 2) and three sets of progenies in 2003 (Generation 3). A strict between-family approach was used and resistance of these selected progenies to summer mortality was assessed in three sites along French coasts, to determine their response to selection and estimate realized heritability of the trait. A significant difference in survival was observed between the "high" and "low" selected groups at all sites for all sets of progenies, indicating a significant genetic component. High realized heritabilities for survival obtained from Generation 2 oysters, ranging from 0.61 ± 0.08 to 0.98 ± 0.15, were in line with previous results from the first generation. Finally, Generation 3 realized heritability, ranging from 0.55 ± 0.18 to 0.81 ± 0.13, supported results from Generation 2. Our results demonstrate that selective breeding to improve survival during the first summer can be successfully implemented and should lead to rapid gains. Overall, selection on survival did not have any impact on growth, although it did have one on yield. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Pacific Aquaculture 299 1-4 21 29 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Crassostrea gigas Heritability Juveniles Summer mortality Survival Growth |
spellingShingle |
Crassostrea gigas Heritability Juveniles Summer mortality Survival Growth Degremont, Lionel Bedier, Edouard Boudry, Pierre Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield |
topic_facet |
Crassostrea gigas Heritability Juveniles Summer mortality Survival Growth |
description |
Response to divergent selection for "high" and "low" survival during the summer period, from July to October, was investigated in juvenile (six-month-old) Pacific oysters, Crassostrea gigas, by producing two sets of progenies in 2002 (Generation 2) and three sets of progenies in 2003 (Generation 3). A strict between-family approach was used and resistance of these selected progenies to summer mortality was assessed in three sites along French coasts, to determine their response to selection and estimate realized heritability of the trait. A significant difference in survival was observed between the "high" and "low" selected groups at all sites for all sets of progenies, indicating a significant genetic component. High realized heritabilities for survival obtained from Generation 2 oysters, ranging from 0.61 ± 0.08 to 0.98 ± 0.15, were in line with previous results from the first generation. Finally, Generation 3 realized heritability, ranging from 0.55 ± 0.18 to 0.81 ± 0.13, supported results from Generation 2. Our results demonstrate that selective breeding to improve survival during the first summer can be successfully implemented and should lead to rapid gains. Overall, selection on survival did not have any impact on growth, although it did have one on yield. |
format |
Article in Journal/Newspaper |
author |
Degremont, Lionel Bedier, Edouard Boudry, Pierre |
author_facet |
Degremont, Lionel Bedier, Edouard Boudry, Pierre |
author_sort |
Degremont, Lionel |
title |
Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield |
title_short |
Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield |
title_full |
Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield |
title_fullStr |
Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield |
title_full_unstemmed |
Summer mortality of hatchery-produced Pacific oyster spat (Crassostrea gigas). II. Response to selection for survival and its influence on growth and yield |
title_sort |
summer mortality of hatchery-produced pacific oyster spat (crassostrea gigas). ii. response to selection for survival and its influence on growth and yield |
publisher |
Elsevier Science Bv |
publishDate |
2010 |
url |
https://archimer.ifremer.fr/doc/2009/publication-6950.pdf https://doi.org/10.1016/j.aquaculture.2009.11.017 https://archimer.ifremer.fr/doc/00000/6950/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Aquaculture (0044-8486) (Elsevier Science Bv), 2010-02 , Vol. 299 , N. 1-4 , P. 21-29 |
op_relation |
https://archimer.ifremer.fr/doc/2009/publication-6950.pdf doi:10.1016/j.aquaculture.2009.11.017 https://archimer.ifremer.fr/doc/00000/6950/ |
op_rights |
2010 Elsevier Ltd All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.aquaculture.2009.11.017 |
container_title |
Aquaculture |
container_volume |
299 |
container_issue |
1-4 |
container_start_page |
21 |
op_container_end_page |
29 |
_version_ |
1766393328312516608 |