An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes.
International audience Total mercury (Hg) concentrations were measured in teeth of ringed seals from Qeqertarsuaq, central West Greenland (1982 to 2006) and Ittoqqortoormiit, central East Greenland (1986 to 2006). Stable isotopic ratios of carbon (13C/12C) and nitrogen (15N/14N) were determined as w...
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ftunivnantes:oai:HAL:hal-00610710v1 2023-05-15T16:03:33+02:00 An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. Aubail, Aurore Dietz, Rune Rigét, Frank Simon-Bouhet, Benoit Caurant, Florence LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) National Environmental Research Institute (NERI) 2010 https://hal.science/hal-00610710 https://hal.science/hal-00610710/document https://hal.science/hal-00610710/file/VersionHAL_Aubail_et_al2010.pdf https://doi.org/10.1016/j.scitotenv.2010.07.038 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2010.07.038 hal-00610710 https://hal.science/hal-00610710 https://hal.science/hal-00610710/document https://hal.science/hal-00610710/file/VersionHAL_Aubail_et_al2010.pdf doi:10.1016/j.scitotenv.2010.07.038 info:eu-repo/semantics/OpenAccess ISSN: 0048-9697 EISSN: 1879-1026 Science of the Total Environment https://hal.science/hal-00610710 Science of the Total Environment, 2010, 408, pp.5137-5146. ⟨10.1016/j.scitotenv.2010.07.038⟩ mercury stable isotopes carbon nitrogen ringed seal Phoca hispida teeth spatial and temporal trends [SDV.TOX.TCA]Life Sciences [q-bio]/Toxicology/Toxicology and food chain info:eu-repo/semantics/article Journal articles 2010 ftunivnantes https://doi.org/10.1016/j.scitotenv.2010.07.038 2023-03-08T00:18:27Z International audience Total mercury (Hg) concentrations were measured in teeth of ringed seals from Qeqertarsuaq, central West Greenland (1982 to 2006) and Ittoqqortoormiit, central East Greenland (1986 to 2006). Stable isotopic ratios of carbon (13C/12C) and nitrogen (15N/14N) were determined as well to provide insights into diet variations between regions or through time. Mercury concentrations decreased the first years of life of the animals suggesting that Hg had been transferred from the mother to the foetus and newborn. The Hg concentrations in teeth were significantly lesser in ringed seals from central West Greenland compared to those from central East Greenland. Carbon and nitrogen stable isotopic values measured in the animals differed also significantly between the two regions. Increasing temporal trends of dental Hg concentrations between 1994 and 2006 were observed in ringed seals from both central West Greenland and central East Greenland. These increases were attributed to global changes in environmental Hg levels since no temporal trends in δ15N values were found to support the hypothesis of a diet shift over time. Furthermore, a decreasing temporal trend in δ13C values was observed in the teeth of seals from central East Greenland, and explained by a likely change over time towards more pelagic feeding habits; alternatively, the so-known Seuss effect was thought to be responsible for this decrease. Finally it was concluded that the tooth of ringed seal was a good monitoring tissue to assess Hg trends. Article in Journal/Newspaper East Greenland Greenland Ittoqqortoormiit Phoca hispida Qeqertarsuaq ringed seal Université de Nantes: HAL-UNIV-NANTES Greenland Qeqertarsuaq ENVELOPE(-56.867,-56.867,74.400,74.400) Ittoqqortoormiit ENVELOPE(-21.962,-21.962,70.485,70.485) Science of The Total Environment 408 21 5137 5146 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
mercury stable isotopes carbon nitrogen ringed seal Phoca hispida teeth spatial and temporal trends [SDV.TOX.TCA]Life Sciences [q-bio]/Toxicology/Toxicology and food chain |
spellingShingle |
mercury stable isotopes carbon nitrogen ringed seal Phoca hispida teeth spatial and temporal trends [SDV.TOX.TCA]Life Sciences [q-bio]/Toxicology/Toxicology and food chain Aubail, Aurore Dietz, Rune Rigét, Frank Simon-Bouhet, Benoit Caurant, Florence An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
topic_facet |
mercury stable isotopes carbon nitrogen ringed seal Phoca hispida teeth spatial and temporal trends [SDV.TOX.TCA]Life Sciences [q-bio]/Toxicology/Toxicology and food chain |
description |
International audience Total mercury (Hg) concentrations were measured in teeth of ringed seals from Qeqertarsuaq, central West Greenland (1982 to 2006) and Ittoqqortoormiit, central East Greenland (1986 to 2006). Stable isotopic ratios of carbon (13C/12C) and nitrogen (15N/14N) were determined as well to provide insights into diet variations between regions or through time. Mercury concentrations decreased the first years of life of the animals suggesting that Hg had been transferred from the mother to the foetus and newborn. The Hg concentrations in teeth were significantly lesser in ringed seals from central West Greenland compared to those from central East Greenland. Carbon and nitrogen stable isotopic values measured in the animals differed also significantly between the two regions. Increasing temporal trends of dental Hg concentrations between 1994 and 2006 were observed in ringed seals from both central West Greenland and central East Greenland. These increases were attributed to global changes in environmental Hg levels since no temporal trends in δ15N values were found to support the hypothesis of a diet shift over time. Furthermore, a decreasing temporal trend in δ13C values was observed in the teeth of seals from central East Greenland, and explained by a likely change over time towards more pelagic feeding habits; alternatively, the so-known Seuss effect was thought to be responsible for this decrease. Finally it was concluded that the tooth of ringed seal was a good monitoring tissue to assess Hg trends. |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) National Environmental Research Institute (NERI) |
format |
Article in Journal/Newspaper |
author |
Aubail, Aurore Dietz, Rune Rigét, Frank Simon-Bouhet, Benoit Caurant, Florence |
author_facet |
Aubail, Aurore Dietz, Rune Rigét, Frank Simon-Bouhet, Benoit Caurant, Florence |
author_sort |
Aubail, Aurore |
title |
An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
title_short |
An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
title_full |
An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
title_fullStr |
An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
title_full_unstemmed |
An evaluation of teeth of ringed seals (Phoca hispida) from Greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
title_sort |
evaluation of teeth of ringed seals (phoca hispida) from greenland as a matrix to monitor spatial and temporal trends of mercury and stable isotopes. |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00610710 https://hal.science/hal-00610710/document https://hal.science/hal-00610710/file/VersionHAL_Aubail_et_al2010.pdf https://doi.org/10.1016/j.scitotenv.2010.07.038 |
long_lat |
ENVELOPE(-56.867,-56.867,74.400,74.400) ENVELOPE(-21.962,-21.962,70.485,70.485) |
geographic |
Greenland Qeqertarsuaq Ittoqqortoormiit |
geographic_facet |
Greenland Qeqertarsuaq Ittoqqortoormiit |
genre |
East Greenland Greenland Ittoqqortoormiit Phoca hispida Qeqertarsuaq ringed seal |
genre_facet |
East Greenland Greenland Ittoqqortoormiit Phoca hispida Qeqertarsuaq ringed seal |
op_source |
ISSN: 0048-9697 EISSN: 1879-1026 Science of the Total Environment https://hal.science/hal-00610710 Science of the Total Environment, 2010, 408, pp.5137-5146. ⟨10.1016/j.scitotenv.2010.07.038⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2010.07.038 hal-00610710 https://hal.science/hal-00610710 https://hal.science/hal-00610710/document https://hal.science/hal-00610710/file/VersionHAL_Aubail_et_al2010.pdf doi:10.1016/j.scitotenv.2010.07.038 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2010.07.038 |
container_title |
Science of The Total Environment |
container_volume |
408 |
container_issue |
21 |
container_start_page |
5137 |
op_container_end_page |
5146 |
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1766399227626258432 |