Spatial and sex differences in mercury contamination of skuas in the Southern Ocean
International audience Antarctic marine ecosystems are often considered to be pristine environments, yet wildlife in the polar regions may still be exposed to high levels of environmental contaminants. Here, we measured total mercury (THg) concentrations in blood samples from adult brown skuas Sterc...
Published in: | Environmental Pollution |
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Main Authors: | , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2022
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Subjects: | |
Online Access: | https://hal.science/hal-03523303 https://hal.science/hal-03523303/document https://hal.science/hal-03523303/file/Mills%20et%20al%202022%20ENPO.pdf https://doi.org/10.1016/j.envpol.2022.118841 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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language |
English |
topic |
seabird pollutants metals stable isotopes Antarctica Southern Hemisphere [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
seabird pollutants metals stable isotopes Antarctica Southern Hemisphere [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Mills, William, F Ibañez, Andrés, E Bustamante, Paco Carneiro, Ana, P B Bearhop, Stuart Cherel, Yves Mariano-Jelicich, Rocío Mcgill, Rona, a R Montalti, Diego Votier, Stephen, C Phillips, Richard, A Spatial and sex differences in mercury contamination of skuas in the Southern Ocean |
topic_facet |
seabird pollutants metals stable isotopes Antarctica Southern Hemisphere [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Antarctic marine ecosystems are often considered to be pristine environments, yet wildlife in the polar regions may still be exposed to high levels of environmental contaminants. Here, we measured total mercury (THg) concentrations in blood samples from adult brown skuas Stercorarius antarcticus lonnbergi (n = 82) from three breeding colonies south of the Antarctic Polar Front in the Southern Ocean (southwest Atlantic region): (i) Bahía Esperanza/Hope Bay, Antarctic Peninsula; (ii) Signy Island, South Orkney Islands; and, (iii) Bird Island, South Georgia. Blood THg concentrations increased from the Antarctic Peninsula towards the Antarctic Polar Front, such that Hg contamination was lowest at Bahía Esperanza/Hope Bay (mean ± SD, 0.95 ± 0.45 µg g-1 dw), intermediate at Signy Island (3.42 ± 2.29 µg g-1 dw) and highest at Bird Island (4.47 ± 1.10 µg g-1 dw). Blood THg concentrations also showed a weak positive correlation with δ15N values, likely reflecting the biomagnification process. Males had higher Hg burdens than females, which may reflect deposition of Hg into eggs by females or potentially differences in their trophic ecology. These data provide important insights into intraspecific variation in contamination and the geographic transfer of Hg to seabirds in the Southern Ocean. |
author2 |
British Antarctic Survey (BAS) Natural Environment Research Council (NERC) University of Exeter Museo de La Plata Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Universidad Nacional de la Plata Argentine (UNLP) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Institut Universitaire de France (IUF) Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) BirdLife International Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Instituto de Investigaciones Marinas y Costeras Mar del Plata (IIMyC) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Mar del Plata Universidad Nacional de Mar del Plata Mar del Plata (UNMdP)-Universidad Nacional de Mar del Plata Mar del Plata (UNMdP) Scottish Universities Environmental Research Centre (SUERC) University of Glasgow-University of Edinburgh Instituto Antartico Argentino Heriot-Watt University Edinburgh (HWU) |
format |
Article in Journal/Newspaper |
author |
Mills, William, F Ibañez, Andrés, E Bustamante, Paco Carneiro, Ana, P B Bearhop, Stuart Cherel, Yves Mariano-Jelicich, Rocío Mcgill, Rona, a R Montalti, Diego Votier, Stephen, C Phillips, Richard, A |
author_facet |
Mills, William, F Ibañez, Andrés, E Bustamante, Paco Carneiro, Ana, P B Bearhop, Stuart Cherel, Yves Mariano-Jelicich, Rocío Mcgill, Rona, a R Montalti, Diego Votier, Stephen, C Phillips, Richard, A |
author_sort |
Mills, William, F |
title |
Spatial and sex differences in mercury contamination of skuas in the Southern Ocean |
title_short |
Spatial and sex differences in mercury contamination of skuas in the Southern Ocean |
title_full |
Spatial and sex differences in mercury contamination of skuas in the Southern Ocean |
title_fullStr |
Spatial and sex differences in mercury contamination of skuas in the Southern Ocean |
title_full_unstemmed |
Spatial and sex differences in mercury contamination of skuas in the Southern Ocean |
title_sort |
spatial and sex differences in mercury contamination of skuas in the southern ocean |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03523303 https://hal.science/hal-03523303/document https://hal.science/hal-03523303/file/Mills%20et%20al%202022%20ENPO.pdf https://doi.org/10.1016/j.envpol.2022.118841 |
long_lat |
ENVELOPE(-57.000,-57.000,-63.400,-63.400) ENVELOPE(-38.060,-38.060,-54.004,-54.004) ENVELOPE(-56.983,-56.983,-63.400,-63.400) ENVELOPE(-57.038,-57.038,-63.403,-63.403) ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Antarctic Antarctic Peninsula bahía Esperanza Bird Island Esperanza Hope Bay Signy Island South Orkney Islands Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula bahía Esperanza Bird Island Esperanza Hope Bay Signy Island South Orkney Islands Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Bird Island Signy Island South Orkney Islands Southern Ocean Stercorarius antarcticus |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Bird Island Signy Island South Orkney Islands Southern Ocean Stercorarius antarcticus |
op_source |
ISSN: 0269-7491 EISSN: 1873-6424 Environmental Pollution https://hal.science/hal-03523303 Environmental Pollution, 2022, 297, pp.118841. ⟨10.1016/j.envpol.2022.118841⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envpol.2022.118841 hal-03523303 https://hal.science/hal-03523303 https://hal.science/hal-03523303/document https://hal.science/hal-03523303/file/Mills%20et%20al%202022%20ENPO.pdf doi:10.1016/j.envpol.2022.118841 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.envpol.2022.118841 |
container_title |
Environmental Pollution |
container_volume |
297 |
container_start_page |
118841 |
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1792041456023633920 |
spelling |
ftccsdartic:oai:HAL:hal-03523303v1 2024-02-27T08:35:02+00:00 Spatial and sex differences in mercury contamination of skuas in the Southern Ocean Mills, William, F Ibañez, Andrés, E Bustamante, Paco Carneiro, Ana, P B Bearhop, Stuart Cherel, Yves Mariano-Jelicich, Rocío Mcgill, Rona, a R Montalti, Diego Votier, Stephen, C Phillips, Richard, A British Antarctic Survey (BAS) Natural Environment Research Council (NERC) University of Exeter Museo de La Plata Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Universidad Nacional de la Plata Argentine (UNLP) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Institut Universitaire de France (IUF) Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.) BirdLife International Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Instituto de Investigaciones Marinas y Costeras Mar del Plata (IIMyC) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Mar del Plata Universidad Nacional de Mar del Plata Mar del Plata (UNMdP)-Universidad Nacional de Mar del Plata Mar del Plata (UNMdP) Scottish Universities Environmental Research Centre (SUERC) University of Glasgow-University of Edinburgh Instituto Antartico Argentino Heriot-Watt University Edinburgh (HWU) 2022 https://hal.science/hal-03523303 https://hal.science/hal-03523303/document https://hal.science/hal-03523303/file/Mills%20et%20al%202022%20ENPO.pdf https://doi.org/10.1016/j.envpol.2022.118841 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.envpol.2022.118841 hal-03523303 https://hal.science/hal-03523303 https://hal.science/hal-03523303/document https://hal.science/hal-03523303/file/Mills%20et%20al%202022%20ENPO.pdf doi:10.1016/j.envpol.2022.118841 info:eu-repo/semantics/OpenAccess ISSN: 0269-7491 EISSN: 1873-6424 Environmental Pollution https://hal.science/hal-03523303 Environmental Pollution, 2022, 297, pp.118841. ⟨10.1016/j.envpol.2022.118841⟩ seabird pollutants metals stable isotopes Antarctica Southern Hemisphere [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2022 ftccsdartic https://doi.org/10.1016/j.envpol.2022.118841 2024-01-28T01:33:04Z International audience Antarctic marine ecosystems are often considered to be pristine environments, yet wildlife in the polar regions may still be exposed to high levels of environmental contaminants. Here, we measured total mercury (THg) concentrations in blood samples from adult brown skuas Stercorarius antarcticus lonnbergi (n = 82) from three breeding colonies south of the Antarctic Polar Front in the Southern Ocean (southwest Atlantic region): (i) Bahía Esperanza/Hope Bay, Antarctic Peninsula; (ii) Signy Island, South Orkney Islands; and, (iii) Bird Island, South Georgia. Blood THg concentrations increased from the Antarctic Peninsula towards the Antarctic Polar Front, such that Hg contamination was lowest at Bahía Esperanza/Hope Bay (mean ± SD, 0.95 ± 0.45 µg g-1 dw), intermediate at Signy Island (3.42 ± 2.29 µg g-1 dw) and highest at Bird Island (4.47 ± 1.10 µg g-1 dw). Blood THg concentrations also showed a weak positive correlation with δ15N values, likely reflecting the biomagnification process. Males had higher Hg burdens than females, which may reflect deposition of Hg into eggs by females or potentially differences in their trophic ecology. These data provide important insights into intraspecific variation in contamination and the geographic transfer of Hg to seabirds in the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica antarcticus Bird Island Signy Island South Orkney Islands Southern Ocean Stercorarius antarcticus Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Antarctic Peninsula bahía Esperanza ENVELOPE(-57.000,-57.000,-63.400,-63.400) Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Esperanza ENVELOPE(-56.983,-56.983,-63.400,-63.400) Hope Bay ENVELOPE(-57.038,-57.038,-63.403,-63.403) Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Southern Ocean The Antarctic Environmental Pollution 297 118841 |