Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations
International audience Albacore tuna (Thunnus alalunga) is a highly commercial fish species harvested in the world's Oceans. Identifying the potential links between populations is one of the key tools that can improve the current management across fisheries areas. In addition to characterising...
Published in: | Science of The Total Environment |
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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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Online Access: | https://hal.umontpellier.fr/hal-01928683 https://doi.org/10.1016/j.scitotenv.2017.04.048 |
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Université de Montpellier: HAL |
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English |
topic |
Bioaccumulation biscay northeast atlantic enhanced bioaccumulation feeding ecology Inorganic elements Intrinsic markers marine food webs mercury concentrations merluccius-merluccius Organic contaminants organochlorine compounds polychlorinated-biphenyls stable-isotope analysis Stable isotopes thunnus-alalunga Top predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
Bioaccumulation biscay northeast atlantic enhanced bioaccumulation feeding ecology Inorganic elements Intrinsic markers marine food webs mercury concentrations merluccius-merluccius Organic contaminants organochlorine compounds polychlorinated-biphenyls stable-isotope analysis Stable isotopes thunnus-alalunga Top predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Chouvelon, Tiphaine Brach-Papa, Christophe Auger, Dominique Bodin, Nathalie Bruzac, Sandrine Crochet, Sylvette Degroote, Maxime Hollanda, Stephanie Hubert, Clarisse Knoery, Joël Munschy, Catherine Puech, Alexis Rozuel, Emmanuelle Thomas, Bastien West, Wendy Bourjea, Jérôme Nikolic, Natacha Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations |
topic_facet |
Bioaccumulation biscay northeast atlantic enhanced bioaccumulation feeding ecology Inorganic elements Intrinsic markers marine food webs mercury concentrations merluccius-merluccius Organic contaminants organochlorine compounds polychlorinated-biphenyls stable-isotope analysis Stable isotopes thunnus-alalunga Top predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
International audience Albacore tuna (Thunnus alalunga) is a highly commercial fish species harvested in the world's Oceans. Identifying the potential links between populations is one of the key tools that can improve the current management across fisheries areas. In addition to characterising populations' contamination state, chemical compounds can help refine foraging areas, individual flows and populations' structure, especially when combined with other intrinsic biogeochemical (trophic) markers such as carbon and nitrogen stable isotopes. This study investigated the bioaccumulation of seven selected trace metals - chromium, nickel, copper (Cu), zinc (Zn), cadmium (Cd), mercury (Hg) and lead - in the muscle of 443 albacore tunas, collected over two seasons and/or years in the western Indian Ocean (WIO: Reunion Island and Seychelles) and in the south-eastern Atlantic Ocean (SEAO: South Africa). The main factor that explained metal concentration variability was the geographic origin of fish, rather than the size and the sex of individuals, or the season/year of sampling. The elements Cu, Zn, Cd and Hg indicated a segregation of the geographic groups most clearly. For similar sized-individuals, tunas from SEAO had significantly higher concentrations in Cu, Zn and Cd, but lower Hg concentrations than those from WIO. Information inferred from the analysis of trophic markers (δ13C, δ15N) and selected persistent organic pollutants, as well as information on stomach contents, corroborated the geographical differences obtained by trace metals. It also highlighted the influence of trophic ecology on metal bioaccumulation. Finally, this study evidenced the potential of metals and chemical contaminants in general as tracers, by segregating groups of individuals using different food webs or habitats, to better understand spatial connectivity at the population scale. Limited flows of individuals between the SEAO and the WIO are suggested. Albacore as predatory fish also provided some information on environmental and food ... |
author2 |
Unité Biogéochimie et Ecotoxicologie (BE) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire Environnement Ressources Provence Azur Corse (LERPAC) Unité Littoral (LITTORAL) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) MARine Biodiversity Exploitation and Conservation (UMR MARBEC) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) Seychelles Fishing Authority (SFA) (SFA) Université des Seychelles Délégation Océan Indien (DOI) Department of Agriculture, Fisheries and Forestry ( DAFF ) |
format |
Article in Journal/Newspaper |
author |
Chouvelon, Tiphaine Brach-Papa, Christophe Auger, Dominique Bodin, Nathalie Bruzac, Sandrine Crochet, Sylvette Degroote, Maxime Hollanda, Stephanie Hubert, Clarisse Knoery, Joël Munschy, Catherine Puech, Alexis Rozuel, Emmanuelle Thomas, Bastien West, Wendy Bourjea, Jérôme Nikolic, Natacha |
author_facet |
Chouvelon, Tiphaine Brach-Papa, Christophe Auger, Dominique Bodin, Nathalie Bruzac, Sandrine Crochet, Sylvette Degroote, Maxime Hollanda, Stephanie Hubert, Clarisse Knoery, Joël Munschy, Catherine Puech, Alexis Rozuel, Emmanuelle Thomas, Bastien West, Wendy Bourjea, Jérôme Nikolic, Natacha |
author_sort |
Chouvelon, Tiphaine |
title |
Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations |
title_short |
Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations |
title_full |
Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations |
title_fullStr |
Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations |
title_full_unstemmed |
Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations |
title_sort |
chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western indian and south-eastern atlantic oceans: trophic influence and potential as tracers of populations |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.umontpellier.fr/hal-01928683 https://doi.org/10.1016/j.scitotenv.2017.04.048 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
ISSN: 0048-9697 EISSN: 1879-1026 Science of the Total Environment https://hal.umontpellier.fr/hal-01928683 Science of the Total Environment, 2017, 596-597, pp.481 - 495. ⟨10.1016/j.scitotenv.2017.04.048⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2017.04.048 hal-01928683 https://hal.umontpellier.fr/hal-01928683 doi:10.1016/j.scitotenv.2017.04.048 |
op_doi |
https://doi.org/10.1016/j.scitotenv.2017.04.048 |
container_title |
Science of The Total Environment |
container_volume |
596-597 |
container_start_page |
481 |
op_container_end_page |
495 |
_version_ |
1797589571239673856 |
spelling |
ftunimontpellier:oai:HAL:hal-01928683v1 2024-04-28T08:32:21+00:00 Chemical contaminants (trace metals, persistent organic pollutants) in albacore tuna from western Indian and south-eastern Atlantic Oceans: Trophic influence and potential as tracers of populations Chouvelon, Tiphaine Brach-Papa, Christophe Auger, Dominique Bodin, Nathalie Bruzac, Sandrine Crochet, Sylvette Degroote, Maxime Hollanda, Stephanie Hubert, Clarisse Knoery, Joël Munschy, Catherine Puech, Alexis Rozuel, Emmanuelle Thomas, Bastien West, Wendy Bourjea, Jérôme Nikolic, Natacha Unité Biogéochimie et Ecotoxicologie (BE) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire Environnement Ressources Provence Azur Corse (LERPAC) Unité Littoral (LITTORAL) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) MARine Biodiversity Exploitation and Conservation (UMR MARBEC) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) Seychelles Fishing Authority (SFA) (SFA) Université des Seychelles Délégation Océan Indien (DOI) Department of Agriculture, Fisheries and Forestry ( DAFF ) 2017-10 https://hal.umontpellier.fr/hal-01928683 https://doi.org/10.1016/j.scitotenv.2017.04.048 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2017.04.048 hal-01928683 https://hal.umontpellier.fr/hal-01928683 doi:10.1016/j.scitotenv.2017.04.048 ISSN: 0048-9697 EISSN: 1879-1026 Science of the Total Environment https://hal.umontpellier.fr/hal-01928683 Science of the Total Environment, 2017, 596-597, pp.481 - 495. ⟨10.1016/j.scitotenv.2017.04.048⟩ Bioaccumulation biscay northeast atlantic enhanced bioaccumulation feeding ecology Inorganic elements Intrinsic markers marine food webs mercury concentrations merluccius-merluccius Organic contaminants organochlorine compounds polychlorinated-biphenyls stable-isotope analysis Stable isotopes thunnus-alalunga Top predator [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2017 ftunimontpellier https://doi.org/10.1016/j.scitotenv.2017.04.048 2024-04-10T14:38:17Z International audience Albacore tuna (Thunnus alalunga) is a highly commercial fish species harvested in the world's Oceans. Identifying the potential links between populations is one of the key tools that can improve the current management across fisheries areas. In addition to characterising populations' contamination state, chemical compounds can help refine foraging areas, individual flows and populations' structure, especially when combined with other intrinsic biogeochemical (trophic) markers such as carbon and nitrogen stable isotopes. This study investigated the bioaccumulation of seven selected trace metals - chromium, nickel, copper (Cu), zinc (Zn), cadmium (Cd), mercury (Hg) and lead - in the muscle of 443 albacore tunas, collected over two seasons and/or years in the western Indian Ocean (WIO: Reunion Island and Seychelles) and in the south-eastern Atlantic Ocean (SEAO: South Africa). The main factor that explained metal concentration variability was the geographic origin of fish, rather than the size and the sex of individuals, or the season/year of sampling. The elements Cu, Zn, Cd and Hg indicated a segregation of the geographic groups most clearly. For similar sized-individuals, tunas from SEAO had significantly higher concentrations in Cu, Zn and Cd, but lower Hg concentrations than those from WIO. Information inferred from the analysis of trophic markers (δ13C, δ15N) and selected persistent organic pollutants, as well as information on stomach contents, corroborated the geographical differences obtained by trace metals. It also highlighted the influence of trophic ecology on metal bioaccumulation. Finally, this study evidenced the potential of metals and chemical contaminants in general as tracers, by segregating groups of individuals using different food webs or habitats, to better understand spatial connectivity at the population scale. Limited flows of individuals between the SEAO and the WIO are suggested. Albacore as predatory fish also provided some information on environmental and food ... Article in Journal/Newspaper Northeast Atlantic Université de Montpellier: HAL Science of The Total Environment 596-597 481 495 |