Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue
International audience We examined the use of mercury (Hg) and nitrogen and carbon stable isotopes in teeth of polar bear (Ursus maritimus) from Svalbard as biotracers of temporal changes in Hg pollution exposure between 1964 and 2003. Teeth were regarded as a good matrix of the Hg exposure, and in...
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Online Access: | https://hal.science/hal-00647260 https://hal.science/hal-00647260/document https://hal.science/hal-00647260/file/HAL_PB_Aubail_al2012.pdf https://doi.org/10.1039/C1EM10681C |
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ftinsu:oai:HAL:hal-00647260v1 2023-05-15T18:29:28+02:00 Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Øystein Caurant, Florence LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) National Environmental Research Institute (NERI) Department of Arctic Environment Rockilde Aarhus University Aarhus -National Environmental Research Institute Danmark (NERI) Natural History Museum Oslo University of Oslo (UiO) 2012 https://hal.science/hal-00647260 https://hal.science/hal-00647260/document https://hal.science/hal-00647260/file/HAL_PB_Aubail_al2012.pdf https://doi.org/10.1039/C1EM10681C en eng HAL CCSD Royal Society of Chemistry info:eu-repo/semantics/altIdentifier/doi/10.1039/C1EM10681C hal-00647260 https://hal.science/hal-00647260 https://hal.science/hal-00647260/document https://hal.science/hal-00647260/file/HAL_PB_Aubail_al2012.pdf doi:10.1039/C1EM10681C info:eu-repo/semantics/OpenAccess ISSN: 1464-0325 EISSN: 1464-0333 Journal of Environmental Monitoring https://hal.science/hal-00647260 Journal of Environmental Monitoring, 2012, 14 (1), pp.56-63. ⟨10.1039/C1EM10681C⟩ Hg carbon nitrogen stable isotope polar bear tooth Svalbard temporal trend [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2012 ftinsu https://doi.org/10.1039/C1EM10681C 2023-02-08T17:37:51Z International audience We examined the use of mercury (Hg) and nitrogen and carbon stable isotopes in teeth of polar bear (Ursus maritimus) from Svalbard as biotracers of temporal changes in Hg pollution exposure between 1964 and 2003. Teeth were regarded as a good matrix of the Hg exposure, and in total 87 teeth of polar bears were analysed. Dental Hg levels ranged from 0.6 to 72.3 ng/g dry weight and increased with age the first 10 years of life. A decreasing time trend in Hg concentrations was observed over the recent four decades while no temporal changes were found in the stable isotope ratios of nitrogen (δ15N) and carbon (δ13C). This suggests that the decrease of Hg concentrations over time was more likely due to a lower environmental Hg exposure in this region rather than a shift in the feeding habits of Svalbard polar bears. Article in Journal/Newspaper Svalbard Ursus maritimus Institut national des sciences de l'Univers: HAL-INSU Svalbard J. Environ. Monit. 14 1 56 63 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Hg carbon nitrogen stable isotope polar bear tooth Svalbard temporal trend [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
Hg carbon nitrogen stable isotope polar bear tooth Svalbard temporal trend [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Øystein Caurant, Florence Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
topic_facet |
Hg carbon nitrogen stable isotope polar bear tooth Svalbard temporal trend [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience We examined the use of mercury (Hg) and nitrogen and carbon stable isotopes in teeth of polar bear (Ursus maritimus) from Svalbard as biotracers of temporal changes in Hg pollution exposure between 1964 and 2003. Teeth were regarded as a good matrix of the Hg exposure, and in total 87 teeth of polar bears were analysed. Dental Hg levels ranged from 0.6 to 72.3 ng/g dry weight and increased with age the first 10 years of life. A decreasing time trend in Hg concentrations was observed over the recent four decades while no temporal changes were found in the stable isotope ratios of nitrogen (δ15N) and carbon (δ13C). This suggests that the decrease of Hg concentrations over time was more likely due to a lower environmental Hg exposure in this region rather than a shift in the feeding habits of Svalbard polar bears. |
author2 |
LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) National Environmental Research Institute (NERI) Department of Arctic Environment Rockilde Aarhus University Aarhus -National Environmental Research Institute Danmark (NERI) Natural History Museum Oslo University of Oslo (UiO) |
format |
Article in Journal/Newspaper |
author |
Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Øystein Caurant, Florence |
author_facet |
Aubail, Aurore Dietz, Rune Rigét, Frank Sonne, Christian Wiig, Øystein Caurant, Florence |
author_sort |
Aubail, Aurore |
title |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_short |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_full |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_fullStr |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_full_unstemmed |
Temporal trend of mercury in polar bears (Ursus maritimus) from Svalbard using teeth as a biomonitoring tissue |
title_sort |
temporal trend of mercury in polar bears (ursus maritimus) from svalbard using teeth as a biomonitoring tissue |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00647260 https://hal.science/hal-00647260/document https://hal.science/hal-00647260/file/HAL_PB_Aubail_al2012.pdf https://doi.org/10.1039/C1EM10681C |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard Ursus maritimus |
genre_facet |
Svalbard Ursus maritimus |
op_source |
ISSN: 1464-0325 EISSN: 1464-0333 Journal of Environmental Monitoring https://hal.science/hal-00647260 Journal of Environmental Monitoring, 2012, 14 (1), pp.56-63. ⟨10.1039/C1EM10681C⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1039/C1EM10681C hal-00647260 https://hal.science/hal-00647260 https://hal.science/hal-00647260/document https://hal.science/hal-00647260/file/HAL_PB_Aubail_al2012.pdf doi:10.1039/C1EM10681C |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1039/C1EM10681C |
container_title |
J. Environ. Monit. |
container_volume |
14 |
container_issue |
1 |
container_start_page |
56 |
op_container_end_page |
63 |
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1766212543086329856 |