Stocking activities for the arctic charr in lake geneva: genetic effects in space and time
Artificial stocking practices are widely used by resource managers worldwide, in order to sustain fish populations exploited by both recreational and commercial activities, but their benefits are controversial. Former practices involved exotic strains, although current programs rather consider artif...
Published in: | Ecology and Evolution |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2017
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393/document https://hal.archives-ouvertes.fr/hal-01604393/file/2017_Savary_Ecol_Evol_1.pdf https://doi.org/10.1002/ece3.3073 |
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ftccsdartic:oai:HAL:hal-01604393v1 |
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Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
conservation-based stocking programs fisherie management genetic bottleneck genetic integrity historical DNA Salmonid Salvelinus genêtic effects storage microsatellites Lac Léman arctique effet génétique stockage microsatellite salmonides [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
conservation-based stocking programs fisherie management genetic bottleneck genetic integrity historical DNA Salmonid Salvelinus genêtic effects storage microsatellites Lac Léman arctique effet génétique stockage microsatellite salmonides [SDE.BE]Environmental Sciences/Biodiversity and Ecology Savary, Romain Dufresnes, Christophe Champigneulle, Alexis Caudron, Arnaud Dubey, Sylvain Perrin, Nicolas Fumagalli, Luca Stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
topic_facet |
conservation-based stocking programs fisherie management genetic bottleneck genetic integrity historical DNA Salmonid Salvelinus genêtic effects storage microsatellites Lac Léman arctique effet génétique stockage microsatellite salmonides [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
Artificial stocking practices are widely used by resource managers worldwide, in order to sustain fish populations exploited by both recreational and commercial activities, but their benefits are controversial. Former practices involved exotic strains, although current programs rather consider artificial breeding of local fishes (supportive breeding). Understanding the complex genetic effects of these management strategies is an important challenge with economic and conservation implications, especially in the context of population declines. In this study, we focus on the declining Arctic charr (Salvelinus alpinus) population from Lake Geneva (Switzerland and France), which has initially been restocked with allochtonous fishes in the early eighties, followed by supportive breeding. In this context, we conducted a genetic survey to document the evolution of the genetic diversity and structure throughout the last 50years, before and after the initiation of hatchery supplementation, using contemporary and historical samples. We show that the introduction of exotic fishes was associated with a genetic bottleneck in the 1980-1990s, a break of Hardy-Weinberg Equilibrium (HWE), a reduction in genetic diversity, an increase in genetic structure among spawning sites, and a change in their genetic composition. Together with better environmental conditions, three decades of subsequent supportive breeding using local fishes allowed to re-establish HWE and the initial levels of genetic variation. However, current spawning sites have not fully recovered their original genetic composition and were extensively homogenized across the lake. Our study demonstrates the drastic genetic consequences of different restocking tactics in a comprehensive spatiotemporal framework and suggests that genetic alteration by nonlocal stocking may be partly reversible through supportive breeding. We recommend that conservation-based programs consider local diversity and implement adequate protocols to limit the genetic homogenization of this ... |
author2 |
Laboratoire de Biologie de la Conservation, Département d'Ecologie et Evolution Université de Lausanne Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Science-Management Interface for Biodiversity Conservation (SCIMABIO Interface) Hintermann and Weber Federal Office for the Environment (FOEN), Switzerland; Inspection de la peche du Canton de Vaud, Switzerland; Ministere de l'Ecologie, de l'Energie, du Developpement Durable et de la Mer, France; Haute-Savoie Departmental Federation of Fisheries, France; La Maison de la Riviere, Tolochenaz, Switzerland |
format |
Article in Journal/Newspaper |
author |
Savary, Romain Dufresnes, Christophe Champigneulle, Alexis Caudron, Arnaud Dubey, Sylvain Perrin, Nicolas Fumagalli, Luca |
author_facet |
Savary, Romain Dufresnes, Christophe Champigneulle, Alexis Caudron, Arnaud Dubey, Sylvain Perrin, Nicolas Fumagalli, Luca |
author_sort |
Savary, Romain |
title |
Stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
title_short |
Stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
title_full |
Stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
title_fullStr |
Stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
title_full_unstemmed |
Stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
title_sort |
stocking activities for the arctic charr in lake geneva: genetic effects in space and time |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393/document https://hal.archives-ouvertes.fr/hal-01604393/file/2017_Savary_Ecol_Evol_1.pdf https://doi.org/10.1002/ece3.3073 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Arctique* Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Arctique* Salvelinus alpinus |
op_source |
ISSN: 2045-7758 Ecology and Evolution https://hal.archives-ouvertes.fr/hal-01604393 Ecology and Evolution, Wiley Open Access, 2017, 7 (14), pp.5201-5211. ⟨10.1002/ece3.3073⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.3073 info:eu-repo/semantics/altIdentifier/pmid/28770060 hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393/document https://hal.archives-ouvertes.fr/hal-01604393/file/2017_Savary_Ecol_Evol_1.pdf doi:10.1002/ece3.3073 PRODINRA: 404087 PUBMED: 28770060 WOS: 000406323100018 |
op_rights |
http://creativecommons.org/licenses/by-sa/ info:eu-repo/semantics/OpenAccess |
op_rightsnorm |
CC-BY-SA |
op_doi |
https://doi.org/10.1002/ece3.3073 |
container_title |
Ecology and Evolution |
container_volume |
7 |
container_issue |
14 |
container_start_page |
5201 |
op_container_end_page |
5211 |
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1766304044177948672 |
spelling |
ftccsdartic:oai:HAL:hal-01604393v1 2023-05-15T14:30:08+02:00 Stocking activities for the arctic charr in lake geneva: genetic effects in space and time Savary, Romain Dufresnes, Christophe Champigneulle, Alexis Caudron, Arnaud Dubey, Sylvain Perrin, Nicolas Fumagalli, Luca Laboratoire de Biologie de la Conservation, Département d'Ecologie et Evolution Université de Lausanne Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Science-Management Interface for Biodiversity Conservation (SCIMABIO Interface) Hintermann and Weber Federal Office for the Environment (FOEN), Switzerland; Inspection de la peche du Canton de Vaud, Switzerland; Ministere de l'Ecologie, de l'Energie, du Developpement Durable et de la Mer, France; Haute-Savoie Departmental Federation of Fisheries, France; La Maison de la Riviere, Tolochenaz, Switzerland 2017 https://hal.archives-ouvertes.fr/hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393/document https://hal.archives-ouvertes.fr/hal-01604393/file/2017_Savary_Ecol_Evol_1.pdf https://doi.org/10.1002/ece3.3073 en eng HAL CCSD Wiley Open Access info:eu-repo/semantics/altIdentifier/doi/10.1002/ece3.3073 info:eu-repo/semantics/altIdentifier/pmid/28770060 hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393 https://hal.archives-ouvertes.fr/hal-01604393/document https://hal.archives-ouvertes.fr/hal-01604393/file/2017_Savary_Ecol_Evol_1.pdf doi:10.1002/ece3.3073 PRODINRA: 404087 PUBMED: 28770060 WOS: 000406323100018 http://creativecommons.org/licenses/by-sa/ info:eu-repo/semantics/OpenAccess CC-BY-SA ISSN: 2045-7758 Ecology and Evolution https://hal.archives-ouvertes.fr/hal-01604393 Ecology and Evolution, Wiley Open Access, 2017, 7 (14), pp.5201-5211. ⟨10.1002/ece3.3073⟩ conservation-based stocking programs fisherie management genetic bottleneck genetic integrity historical DNA Salmonid Salvelinus genêtic effects storage microsatellites Lac Léman arctique effet génétique stockage microsatellite salmonides [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1002/ece3.3073 2021-07-03T23:25:27Z Artificial stocking practices are widely used by resource managers worldwide, in order to sustain fish populations exploited by both recreational and commercial activities, but their benefits are controversial. Former practices involved exotic strains, although current programs rather consider artificial breeding of local fishes (supportive breeding). Understanding the complex genetic effects of these management strategies is an important challenge with economic and conservation implications, especially in the context of population declines. In this study, we focus on the declining Arctic charr (Salvelinus alpinus) population from Lake Geneva (Switzerland and France), which has initially been restocked with allochtonous fishes in the early eighties, followed by supportive breeding. In this context, we conducted a genetic survey to document the evolution of the genetic diversity and structure throughout the last 50years, before and after the initiation of hatchery supplementation, using contemporary and historical samples. We show that the introduction of exotic fishes was associated with a genetic bottleneck in the 1980-1990s, a break of Hardy-Weinberg Equilibrium (HWE), a reduction in genetic diversity, an increase in genetic structure among spawning sites, and a change in their genetic composition. Together with better environmental conditions, three decades of subsequent supportive breeding using local fishes allowed to re-establish HWE and the initial levels of genetic variation. However, current spawning sites have not fully recovered their original genetic composition and were extensively homogenized across the lake. Our study demonstrates the drastic genetic consequences of different restocking tactics in a comprehensive spatiotemporal framework and suggests that genetic alteration by nonlocal stocking may be partly reversible through supportive breeding. We recommend that conservation-based programs consider local diversity and implement adequate protocols to limit the genetic homogenization of this ... Article in Journal/Newspaper Arctic charr Arctic Arctique* Salvelinus alpinus Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Ecology and Evolution 7 14 5201 5211 |