Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations
The impact of escapees from aquaculture is of general concern for the sustainability of natural resources. Turbot Scophthalmus maximus is a marine flatfish of great commercial value whose land-based aquaculture started approx. 40 yr ago; hence, a low impact of escapees is expected on wild population...
Published in: | Aquaculture Environment Interactions |
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ftunivsantcomp:oai:minerva.usc.es:10347/22716 2023-07-30T04:05:48+02:00 Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations Prado, Fernanda Dotti do Vera Rodríguez, Manuel Hermida Prieto, Miguel Blanco Hortas, Andrés Bouza Fernández, María Carmen Maes, Gregory E. Volckaert, Filip A. M. The Aquatrace Consortium Martínez Portela, Paulino Universidade de Santiago de Compostela. Departamento de Zooloxía, Xenética e Antropoloxía Física application/pdf http://hdl.handle.net/10347/22716 https://doi.org/10.3354/aei00282 eng eng Inter-Research Science Publisher https://doi.org/10.3354/aei00282 info:eu-repo/grantAgreement/EC/FP7/311920 Prado FD, Vera M, Hermida M, Blanco A and others (2018) Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations. Aquacult Environ Interact 10:447-463 1869-215X http://hdl.handle.net/10347/22716 doi:10.3354/aei00282 1869-7534 © The authors 2018. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are un-restricted. Authors and original publication must be credited http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Aquaculture Introgression Restocking Scophthalmus maximus SNPs Sustainability Traceability tool info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion ftunivsantcomp https://doi.org/10.3354/aei00282 2023-07-11T23:26:10Z The impact of escapees from aquaculture is of general concern for the sustainability of natural resources. Turbot Scophthalmus maximus is a marine flatfish of great commercial value whose land-based aquaculture started approx. 40 yr ago; hence, a low impact of escapees is expected on wild populations. However, enhancement of wild stocks using farmed turbot has been carried out along the Northeast Atlantic coasts in the last decades. Recently, a broad panel of single nucleotide polymorphism (SNP) markers (755 SNPs; 1 SNP Mb−1) has been used to evaluate the genetic structure of turbot throughout its distribution range, constituting the baseline to evaluate the impact of farmed fish in the wild. Two distinct origins were identified for farmed turbot (F_ORI1 and F_ORI2; FST = 0.049), which differentiated from wild populations after 5 generations of selection (average FST = 0.059), and consistent evidence of adaptation to domestication was de - tected. A notable proportion of fish of farmed ancestry was detected in the wild (15.5%), mainly in the North Sea, where restocking activities have taken place, determining genetic introgression in wild populations. Conversely, effects of land-based aquaculture appear negligible. A simulation exercise supported panels of 40 and 80 SNPs to identify fishes of F_ORI1 and F_ORI2 ancestry in the wild, respectively. Application to empirical data showed an assignment success (wild/farmed ancestry) of approx. 95% in comparison with the full SNP dataset. The SNP tools will be useful to monitor turbot of farmed ancestry in the wild, which might represent a risk, considering the lower fitness of farmed individuals The project was funded by the 7th Framework Programme for research (FP7) under ‘Knowledge-Based Bio-Economy — KBBE’, Theme 2: ‘Food, Agriculture and fisheries, and Biotechnologies’ Project identifier: FP7-KBBE-2012-6-singlestage Grant agreement no.: 311920 ‘The development of tools for tracing and evaluating the genetic impact of fish from aquaculture: AquaTrace’ and the ... Article in Journal/Newspaper Northeast Atlantic Scophthalmus maximus Turbot Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC) Aquaculture Environment Interactions 10 447 463 |
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Open Polar |
collection |
Minerva - Repositorio institucional da Universidade de Santiago de Compostela (USC) |
op_collection_id |
ftunivsantcomp |
language |
English |
topic |
Aquaculture Introgression Restocking Scophthalmus maximus SNPs Sustainability Traceability tool |
spellingShingle |
Aquaculture Introgression Restocking Scophthalmus maximus SNPs Sustainability Traceability tool Prado, Fernanda Dotti do Vera Rodríguez, Manuel Hermida Prieto, Miguel Blanco Hortas, Andrés Bouza Fernández, María Carmen Maes, Gregory E. Volckaert, Filip A. M. The Aquatrace Consortium Martínez Portela, Paulino Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations |
topic_facet |
Aquaculture Introgression Restocking Scophthalmus maximus SNPs Sustainability Traceability tool |
description |
The impact of escapees from aquaculture is of general concern for the sustainability of natural resources. Turbot Scophthalmus maximus is a marine flatfish of great commercial value whose land-based aquaculture started approx. 40 yr ago; hence, a low impact of escapees is expected on wild populations. However, enhancement of wild stocks using farmed turbot has been carried out along the Northeast Atlantic coasts in the last decades. Recently, a broad panel of single nucleotide polymorphism (SNP) markers (755 SNPs; 1 SNP Mb−1) has been used to evaluate the genetic structure of turbot throughout its distribution range, constituting the baseline to evaluate the impact of farmed fish in the wild. Two distinct origins were identified for farmed turbot (F_ORI1 and F_ORI2; FST = 0.049), which differentiated from wild populations after 5 generations of selection (average FST = 0.059), and consistent evidence of adaptation to domestication was de - tected. A notable proportion of fish of farmed ancestry was detected in the wild (15.5%), mainly in the North Sea, where restocking activities have taken place, determining genetic introgression in wild populations. Conversely, effects of land-based aquaculture appear negligible. A simulation exercise supported panels of 40 and 80 SNPs to identify fishes of F_ORI1 and F_ORI2 ancestry in the wild, respectively. Application to empirical data showed an assignment success (wild/farmed ancestry) of approx. 95% in comparison with the full SNP dataset. The SNP tools will be useful to monitor turbot of farmed ancestry in the wild, which might represent a risk, considering the lower fitness of farmed individuals The project was funded by the 7th Framework Programme for research (FP7) under ‘Knowledge-Based Bio-Economy — KBBE’, Theme 2: ‘Food, Agriculture and fisheries, and Biotechnologies’ Project identifier: FP7-KBBE-2012-6-singlestage Grant agreement no.: 311920 ‘The development of tools for tracing and evaluating the genetic impact of fish from aquaculture: AquaTrace’ and the ... |
author2 |
Universidade de Santiago de Compostela. Departamento de Zooloxía, Xenética e Antropoloxía Física |
format |
Article in Journal/Newspaper |
author |
Prado, Fernanda Dotti do Vera Rodríguez, Manuel Hermida Prieto, Miguel Blanco Hortas, Andrés Bouza Fernández, María Carmen Maes, Gregory E. Volckaert, Filip A. M. The Aquatrace Consortium Martínez Portela, Paulino |
author_facet |
Prado, Fernanda Dotti do Vera Rodríguez, Manuel Hermida Prieto, Miguel Blanco Hortas, Andrés Bouza Fernández, María Carmen Maes, Gregory E. Volckaert, Filip A. M. The Aquatrace Consortium Martínez Portela, Paulino |
author_sort |
Prado, Fernanda Dotti do |
title |
Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations |
title_short |
Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations |
title_full |
Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations |
title_fullStr |
Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations |
title_full_unstemmed |
Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations |
title_sort |
tracing the genetic impact of farmed turbot scophthalmus maximus on wild populations |
publisher |
Inter-Research Science Publisher |
url |
http://hdl.handle.net/10347/22716 https://doi.org/10.3354/aei00282 |
genre |
Northeast Atlantic Scophthalmus maximus Turbot |
genre_facet |
Northeast Atlantic Scophthalmus maximus Turbot |
op_relation |
https://doi.org/10.3354/aei00282 info:eu-repo/grantAgreement/EC/FP7/311920 Prado FD, Vera M, Hermida M, Blanco A and others (2018) Tracing the genetic impact of farmed turbot Scophthalmus maximus on wild populations. Aquacult Environ Interact 10:447-463 1869-215X http://hdl.handle.net/10347/22716 doi:10.3354/aei00282 1869-7534 |
op_rights |
© The authors 2018. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are un-restricted. Authors and original publication must be credited http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/aei00282 |
container_title |
Aquaculture Environment Interactions |
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10 |
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447 |
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463 |
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1772817953070252032 |