Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs
cited By 17 International audience Elevated mercury concentrations ([Hg]) were found in Alaskan murre (Uria spp.) eggs from the coastal embayment of Norton Sound relative to insular colonies in the northern Bering Sea-Bering Strait region. Stable isotopes of Hg, carbon, and nitrogen were measured in...
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ftunivpau:oai:HAL:hal-01590287v1 2024-05-12T08:01:55+00:00 Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs Day, R.D. Roseneau, D.G. Bérail, Sylvain Hobson, K.A. Donard, Olivier François Xavier Vander Pol, S.S. Pugh, R.S. Moors, A.J. Long, S.E. Becker, P.R. 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 - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-01590287 https://doi.org/10.1021/es2047156 en eng HAL CCSD American Chemical Society info:eu-repo/semantics/altIdentifier/doi/10.1021/es2047156 hal-01590287 https://hal.science/hal-01590287 doi:10.1021/es2047156 ISSN: 0013-936X EISSN: 1520-5851 Environmental Science and Technology https://hal.science/hal-01590287 Environmental Science and Technology, 2012, 46 (10), pp.5327-5335. ⟨10.1021/es2047156⟩ [CHIM.ANAL]Chemical Sciences/Analytical chemistry info:eu-repo/semantics/article Journal articles 2012 ftunivpau https://doi.org/10.1021/es2047156 2024-04-12T00:09:08Z cited By 17 International audience Elevated mercury concentrations ([Hg]) were found in Alaskan murre (Uria spp.) eggs from the coastal embayment of Norton Sound relative to insular colonies in the northern Bering Sea-Bering Strait region. Stable isotopes of Hg, carbon, and nitrogen were measured in the eggs to investigate the source of this enrichment. Lower δ13C values in Norton Sound eggs (-23.3‰ to -20.0‰) relative to eggs from more oceanic colonies (-20.9‰ to -18.7‰) indicated that a significant terrestrial carbon source was associated with the elevated [Hg] in Norton Sound, implicating the Yukon River and smaller Seward Peninsula watersheds as the likely Hg source. The increasing [Hg] gradient extending inshore was accompanied by strong decreasing gradients of δ202Hg and Δ199Hg in eggs, indicating lower degrees of mass-dependent (MDF) and mass-independent Hg fractionation (MIF) (respectively) in the Norton Sound food web. Negative or zero MDF and MIF signatures are typical of geological Hg sources, which suggests murres in Norton Sound integrated Hg from a more recent geological origin that has experienced a relatively limited extent of aquatic fractionation relative to more oceanic colonies. The association of low δ202Hg and Δ199Hg with elevated [Hg] and terrestrial δ13C values suggested that Hg stable isotopes in murre eggs effectively differentiated terrestrial/geogenic Hg sources from oceanic reservoirs. © 2012 American Chemical Society. Article in Journal/Newspaper Bering Sea Bering Strait Seward Peninsula Yukon river uria Yukon HAL e2s UPPA (Université de Pau et des Pays de l'Adour) Yukon Bering Sea Bering Strait Norton Sound ENVELOPE(69.507,69.507,-49.202,-49.202) Environmental Science & Technology 46 10 5327 5335 |
institution |
Open Polar |
collection |
HAL e2s UPPA (Université de Pau et des Pays de l'Adour) |
op_collection_id |
ftunivpau |
language |
English |
topic |
[CHIM.ANAL]Chemical Sciences/Analytical chemistry |
spellingShingle |
[CHIM.ANAL]Chemical Sciences/Analytical chemistry Day, R.D. Roseneau, D.G. Bérail, Sylvain Hobson, K.A. Donard, Olivier François Xavier Vander Pol, S.S. Pugh, R.S. Moors, A.J. Long, S.E. Becker, P.R. Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
topic_facet |
[CHIM.ANAL]Chemical Sciences/Analytical chemistry |
description |
cited By 17 International audience Elevated mercury concentrations ([Hg]) were found in Alaskan murre (Uria spp.) eggs from the coastal embayment of Norton Sound relative to insular colonies in the northern Bering Sea-Bering Strait region. Stable isotopes of Hg, carbon, and nitrogen were measured in the eggs to investigate the source of this enrichment. Lower δ13C values in Norton Sound eggs (-23.3‰ to -20.0‰) relative to eggs from more oceanic colonies (-20.9‰ to -18.7‰) indicated that a significant terrestrial carbon source was associated with the elevated [Hg] in Norton Sound, implicating the Yukon River and smaller Seward Peninsula watersheds as the likely Hg source. The increasing [Hg] gradient extending inshore was accompanied by strong decreasing gradients of δ202Hg and Δ199Hg in eggs, indicating lower degrees of mass-dependent (MDF) and mass-independent Hg fractionation (MIF) (respectively) in the Norton Sound food web. Negative or zero MDF and MIF signatures are typical of geological Hg sources, which suggests murres in Norton Sound integrated Hg from a more recent geological origin that has experienced a relatively limited extent of aquatic fractionation relative to more oceanic colonies. The association of low δ202Hg and Δ199Hg with elevated [Hg] and terrestrial δ13C values suggested that Hg stable isotopes in murre eggs effectively differentiated terrestrial/geogenic Hg sources from oceanic reservoirs. © 2012 American Chemical Society. |
author2 |
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 - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Day, R.D. Roseneau, D.G. Bérail, Sylvain Hobson, K.A. Donard, Olivier François Xavier Vander Pol, S.S. Pugh, R.S. Moors, A.J. Long, S.E. Becker, P.R. |
author_facet |
Day, R.D. Roseneau, D.G. Bérail, Sylvain Hobson, K.A. Donard, Olivier François Xavier Vander Pol, S.S. Pugh, R.S. Moors, A.J. Long, S.E. Becker, P.R. |
author_sort |
Day, R.D. |
title |
Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
title_short |
Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
title_full |
Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
title_fullStr |
Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
title_full_unstemmed |
Mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
title_sort |
mercury stable isotopes in seabird eggs reflect a gradient from terrestrial geogenic to oceanic mercury reservoirs |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-01590287 https://doi.org/10.1021/es2047156 |
long_lat |
ENVELOPE(69.507,69.507,-49.202,-49.202) |
geographic |
Yukon Bering Sea Bering Strait Norton Sound |
geographic_facet |
Yukon Bering Sea Bering Strait Norton Sound |
genre |
Bering Sea Bering Strait Seward Peninsula Yukon river uria Yukon |
genre_facet |
Bering Sea Bering Strait Seward Peninsula Yukon river uria Yukon |
op_source |
ISSN: 0013-936X EISSN: 1520-5851 Environmental Science and Technology https://hal.science/hal-01590287 Environmental Science and Technology, 2012, 46 (10), pp.5327-5335. ⟨10.1021/es2047156⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1021/es2047156 hal-01590287 https://hal.science/hal-01590287 doi:10.1021/es2047156 |
op_doi |
https://doi.org/10.1021/es2047156 |
container_title |
Environmental Science & Technology |
container_volume |
46 |
container_issue |
10 |
container_start_page |
5327 |
op_container_end_page |
5335 |
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1798844031215599616 |