Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides)
International audience Mercury (Hg) pollution in the ocean is an issue of global concern, however bioaccumulation regimes of this ubiquitous pollutant in marine apex predators have important knowledge gaps. Our fish length and stable isotope (δ 15 N and δ 13 C) normalized data of Greenland halibut (...
Published in: | Environmental Pollution |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/document https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/file/2021_Banketal_Env%20Poll_Hg%20Halibut.pdf https://doi.org/10.1016/j.envpol.2021.117843 |
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ftunivnantes:oai:HAL:hal-03450483v1 2023-05-15T16:27:11+02:00 Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) Bank, Michael, Frantzen, Sylvia Duinker, Arne Amouroux, David Tessier, Emmanuel Nedreaas, Kjell Maage, Amund Nilsen, Bente Austevoll Research Station (IMR) Institute of Marine Research Bergen (IMR) University of Bergen (UiB)-University of Bergen (UiB) University of Bergen (UiB) Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) 2021-07-26 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/document https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/file/2021_Banketal_Env%20Poll_Hg%20Halibut.pdf https://doi.org/10.1016/j.envpol.2021.117843 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envpol.2021.117843 hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/document https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/file/2021_Banketal_Env%20Poll_Hg%20Halibut.pdf doi:10.1016/j.envpol.2021.117843 info:eu-repo/semantics/OpenAccess ISSN: 0269-7491 EISSN: 1873-6424 Environmental Pollution https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 Environmental Pollution, Elsevier, 2021, 289, pp.117843. ⟨10.1016/j.envpol.2021.117843⟩ Mercury Seafood Ocean Greenland halibut Stable isotopes Bioaccumulation [CHIM.MATE]Chemical Sciences/Material chemistry [CHIM.POLY]Chemical Sciences/Polymers [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry [CHIM.ANAL]Chemical Sciences/Analytical chemistry info:eu-repo/semantics/article Journal articles 2021 ftunivnantes https://doi.org/10.1016/j.envpol.2021.117843 2022-11-09T00:33:59Z International audience Mercury (Hg) pollution in the ocean is an issue of global concern, however bioaccumulation regimes of this ubiquitous pollutant in marine apex predators have important knowledge gaps. Our fish length and stable isotope (δ 15 N and δ 13 C) normalized data of Greenland halibut (GH) (Reinhardtius hippoglossoides) showed that Hg bioaccumulation in fillet tissue decreased by ~35-50 %, over a ten-year period from 2006 to 2015 (n = 7 individual sampling years). Hg was predominantly in the methylmercury form (>77 %). Results from a Bayesian information theoretic model showed that GH Hg concentrations decreased with time and its associated declines in Hg air emissions, estimated trophic position, and a potentially lower degree of demersal prey use as indicated by temporal trend shifts in nitrogen (δ 15 N) and carbon (δ 13 C) stable isotope values. GH trophic shifts accounted for about one third of the observed temporal reduction in Hg. Our study demonstrates the importance of simultaneously considering Hg emissions, food web dynamics and trophic shifts as important drivers of Hg bioaccumulation in a marine, deep water fish species and highlights the effectiveness of Hg regulations on ocean apex predator Hg concentrations and overall seafood safety. Article in Journal/Newspaper Greenland Université de Nantes: HAL-UNIV-NANTES Greenland Environmental Pollution 289 117843 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Mercury Seafood Ocean Greenland halibut Stable isotopes Bioaccumulation [CHIM.MATE]Chemical Sciences/Material chemistry [CHIM.POLY]Chemical Sciences/Polymers [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry [CHIM.ANAL]Chemical Sciences/Analytical chemistry |
spellingShingle |
Mercury Seafood Ocean Greenland halibut Stable isotopes Bioaccumulation [CHIM.MATE]Chemical Sciences/Material chemistry [CHIM.POLY]Chemical Sciences/Polymers [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry [CHIM.ANAL]Chemical Sciences/Analytical chemistry Bank, Michael, Frantzen, Sylvia Duinker, Arne Amouroux, David Tessier, Emmanuel Nedreaas, Kjell Maage, Amund Nilsen, Bente Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) |
topic_facet |
Mercury Seafood Ocean Greenland halibut Stable isotopes Bioaccumulation [CHIM.MATE]Chemical Sciences/Material chemistry [CHIM.POLY]Chemical Sciences/Polymers [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry [CHIM.ANAL]Chemical Sciences/Analytical chemistry |
description |
International audience Mercury (Hg) pollution in the ocean is an issue of global concern, however bioaccumulation regimes of this ubiquitous pollutant in marine apex predators have important knowledge gaps. Our fish length and stable isotope (δ 15 N and δ 13 C) normalized data of Greenland halibut (GH) (Reinhardtius hippoglossoides) showed that Hg bioaccumulation in fillet tissue decreased by ~35-50 %, over a ten-year period from 2006 to 2015 (n = 7 individual sampling years). Hg was predominantly in the methylmercury form (>77 %). Results from a Bayesian information theoretic model showed that GH Hg concentrations decreased with time and its associated declines in Hg air emissions, estimated trophic position, and a potentially lower degree of demersal prey use as indicated by temporal trend shifts in nitrogen (δ 15 N) and carbon (δ 13 C) stable isotope values. GH trophic shifts accounted for about one third of the observed temporal reduction in Hg. Our study demonstrates the importance of simultaneously considering Hg emissions, food web dynamics and trophic shifts as important drivers of Hg bioaccumulation in a marine, deep water fish species and highlights the effectiveness of Hg regulations on ocean apex predator Hg concentrations and overall seafood safety. |
author2 |
Austevoll Research Station (IMR) Institute of Marine Research Bergen (IMR) University of Bergen (UiB)-University of Bergen (UiB) University of Bergen (UiB) Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Bank, Michael, Frantzen, Sylvia Duinker, Arne Amouroux, David Tessier, Emmanuel Nedreaas, Kjell Maage, Amund Nilsen, Bente |
author_facet |
Bank, Michael, Frantzen, Sylvia Duinker, Arne Amouroux, David Tessier, Emmanuel Nedreaas, Kjell Maage, Amund Nilsen, Bente |
author_sort |
Bank, Michael, |
title |
Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) |
title_short |
Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) |
title_full |
Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) |
title_fullStr |
Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) |
title_full_unstemmed |
Rapid temporal decline of mercury in Greenland halibut (Reinhardtius hippoglossoides) |
title_sort |
rapid temporal decline of mercury in greenland halibut (reinhardtius hippoglossoides) |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/document https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/file/2021_Banketal_Env%20Poll_Hg%20Halibut.pdf https://doi.org/10.1016/j.envpol.2021.117843 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
ISSN: 0269-7491 EISSN: 1873-6424 Environmental Pollution https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 Environmental Pollution, Elsevier, 2021, 289, pp.117843. ⟨10.1016/j.envpol.2021.117843⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envpol.2021.117843 hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483 https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/document https://hal-univ-pau.archives-ouvertes.fr/hal-03450483/file/2021_Banketal_Env%20Poll_Hg%20Halibut.pdf doi:10.1016/j.envpol.2021.117843 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.envpol.2021.117843 |
container_title |
Environmental Pollution |
container_volume |
289 |
container_start_page |
117843 |
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1766016275161546752 |