Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva
International audience Eutrophication has been a major stressor in lakes during the last century, with important implications for fish populations and thus fisheries. We summarised the Arctic charr (Salvelinus alpinus) fishery data available in Lake Geneva between 1887 and 2011 to describe contempor...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.inrae.fr/hal-02634928 https://doi.org/10.1016/j.fishres.2014.01.023 |
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ftunigrenoble:oai:HAL:hal-02634928v1 2024-04-14T08:05:46+00:00 Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva Caudron, Arnaud Lasne, Emilien Gillet, Christian, C. Guillard, Jean Champigneulle, Alexis 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 ) Fédération de Haute-Savoie pour la Pêche et la Protection du Milieu Aquatique (FDPPM) Federal Office for the Environment (FOEN); French Ministry for Ecology, Energy, Sustainable Development and Sea (MEEDDM); Haute-Savoie Departmental Federation of Fisheries 2014 https://hal.inrae.fr/hal-02634928 https://doi.org/10.1016/j.fishres.2014.01.023 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fishres.2014.01.023 hal-02634928 https://hal.inrae.fr/hal-02634928 doi:10.1016/j.fishres.2014.01.023 PRODINRA: 270119 WOS: 000336117000017 ISSN: 0165-7836 EISSN: 1872-6763 Fisheries Research https://hal.inrae.fr/hal-02634928 Fisheries Research, 2014, 154, pp.165-171. ⟨10.1016/j.fishres.2014.01.023⟩ http://www.journals.elsevier.com/fisheries-research Alizarine red S Salmonid Deep lake Otolith marking Eutrophication [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2014 ftunigrenoble https://doi.org/10.1016/j.fishres.2014.01.023 2024-03-21T16:19:31Z International audience Eutrophication has been a major stressor in lakes during the last century, with important implications for fish populations and thus fisheries. We summarised the Arctic charr (Salvelinus alpinus) fishery data available in Lake Geneva between 1887 and 2011 to describe contemporary catches in a broad perspective in relationship to the trophic status and the stocking history. Actual catches are low, but such levels had already been reached before the period of eutrophication. In addition, the high catch levels during the 1990s appeared to be artificially boosted by intense stocking and therefore cannot be used as a reference point. Thus, fishery data only do not allow for population functionality inference. Subsequently, we evaluated the contemporary contribution of stocking to catches and to the spawners by marking all of the fingerlings stocked in 2007 (n = 993,300 individuals) with a mass marking otolith technique using alizarine Red S. Multiple markings allowed us to distinguish between three stocking practices and to compare their relative efficiency. From 2009 to 2011, 1929 chart were sampled in recreational catches, commercial catches, and in spawners. More than 51% (980) of the total sample set corresponded to the 2007 cohort. The total contribution of stocked fish was 84% at stage 2+, 72% at stage 3+, and 44% at stage 4+. The results were similar to prior values obtained during the 1980s. Differences in the contributions between the types of samples (commercial catches, recreational catches, and spawners) were found. The results highlighted the fact that the current stocking effectiveness was 4 to 5 times lower compared to the effectiveness during the 19805. Consequently, the current concern about the Arctic charr population, and the fishery in Lake Geneva, is two-fold: first, the long process of reoligotrophication does not allow for the restoration of self-sustaining Arctic chart populations; second, the stocking effectiveness decreased strongly over the last 30 years. Even if ... Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Université Grenoble Alpes: HAL Arctic Fisheries Research 154 165 171 |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
Alizarine red S Salmonid Deep lake Otolith marking Eutrophication [SDV]Life Sciences [q-bio] |
spellingShingle |
Alizarine red S Salmonid Deep lake Otolith marking Eutrophication [SDV]Life Sciences [q-bio] Caudron, Arnaud Lasne, Emilien Gillet, Christian, C. Guillard, Jean Champigneulle, Alexis Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva |
topic_facet |
Alizarine red S Salmonid Deep lake Otolith marking Eutrophication [SDV]Life Sciences [q-bio] |
description |
International audience Eutrophication has been a major stressor in lakes during the last century, with important implications for fish populations and thus fisheries. We summarised the Arctic charr (Salvelinus alpinus) fishery data available in Lake Geneva between 1887 and 2011 to describe contemporary catches in a broad perspective in relationship to the trophic status and the stocking history. Actual catches are low, but such levels had already been reached before the period of eutrophication. In addition, the high catch levels during the 1990s appeared to be artificially boosted by intense stocking and therefore cannot be used as a reference point. Thus, fishery data only do not allow for population functionality inference. Subsequently, we evaluated the contemporary contribution of stocking to catches and to the spawners by marking all of the fingerlings stocked in 2007 (n = 993,300 individuals) with a mass marking otolith technique using alizarine Red S. Multiple markings allowed us to distinguish between three stocking practices and to compare their relative efficiency. From 2009 to 2011, 1929 chart were sampled in recreational catches, commercial catches, and in spawners. More than 51% (980) of the total sample set corresponded to the 2007 cohort. The total contribution of stocked fish was 84% at stage 2+, 72% at stage 3+, and 44% at stage 4+. The results were similar to prior values obtained during the 1980s. Differences in the contributions between the types of samples (commercial catches, recreational catches, and spawners) were found. The results highlighted the fact that the current stocking effectiveness was 4 to 5 times lower compared to the effectiveness during the 19805. Consequently, the current concern about the Arctic charr population, and the fishery in Lake Geneva, is two-fold: first, the long process of reoligotrophication does not allow for the restoration of self-sustaining Arctic chart populations; second, the stocking effectiveness decreased strongly over the last 30 years. Even if ... |
author2 |
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 ) Fédération de Haute-Savoie pour la Pêche et la Protection du Milieu Aquatique (FDPPM) Federal Office for the Environment (FOEN); French Ministry for Ecology, Energy, Sustainable Development and Sea (MEEDDM); Haute-Savoie Departmental Federation of Fisheries |
format |
Article in Journal/Newspaper |
author |
Caudron, Arnaud Lasne, Emilien Gillet, Christian, C. Guillard, Jean Champigneulle, Alexis |
author_facet |
Caudron, Arnaud Lasne, Emilien Gillet, Christian, C. Guillard, Jean Champigneulle, Alexis |
author_sort |
Caudron, Arnaud |
title |
Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva |
title_short |
Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva |
title_full |
Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva |
title_fullStr |
Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva |
title_full_unstemmed |
Thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of Arctic charr, Salvelinus alpinus , in Lake Geneva |
title_sort |
thirty years of reoligotrophication do not contribute to restore self-sustaining fisheries of arctic charr, salvelinus alpinus , in lake geneva |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.inrae.fr/hal-02634928 https://doi.org/10.1016/j.fishres.2014.01.023 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
ISSN: 0165-7836 EISSN: 1872-6763 Fisheries Research https://hal.inrae.fr/hal-02634928 Fisheries Research, 2014, 154, pp.165-171. ⟨10.1016/j.fishres.2014.01.023⟩ http://www.journals.elsevier.com/fisheries-research |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fishres.2014.01.023 hal-02634928 https://hal.inrae.fr/hal-02634928 doi:10.1016/j.fishres.2014.01.023 PRODINRA: 270119 WOS: 000336117000017 |
op_doi |
https://doi.org/10.1016/j.fishres.2014.01.023 |
container_title |
Fisheries Research |
container_volume |
154 |
container_start_page |
165 |
op_container_end_page |
171 |
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1796302391294820352 |