Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems
Due to its persistence and potential ecological and health impacts, mercury (Hg) is a global pollutant of major concern that may reach high concentrations even in remote polar oceans. In contrast to the Arctic Ocean, studies documenting Hg contamination in the Southern Ocean are spatially restricted...
Published in: | Ecotoxicology |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://hdl.handle.net/11365/1270994 https://doi.org/10.1007/s10646-023-02709-9 https://link.springer.com/article/10.1007/s10646-023-02709-9 |
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ftunivsiena:oai:usiena-air.unisi.it:11365/1270994 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Feather Hg Marine food web Seabird Southern Ocean Stable Isotopes |
spellingShingle |
Feather Hg Marine food web Seabird Southern Ocean Stable Isotopes Cusset, Fanny Bustamante, Paco Carravieri, Alice Bertin, Clément Brasso, Rebecka Corsi, Ilaria Dunn, Michael Emmerson, Louise Guillou, Gaël Hart, Tom Juáres, Mariana Kato, Akiko Machado-Gaye, Ana Laura Michelot, Candice Olmastroni, Silvia Polito, Michael Raclot, Thierry Santos, Mercedes Schmidt, Annie Southwell, Colin Soutullo, Alvaro Takahashi, Akinori Thiebot, Jean-Baptiste Trathan, Phil Vivion, Pierre Waluda, Claire Fort, Jérôme Cherel, Yves Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems |
topic_facet |
Feather Hg Marine food web Seabird Southern Ocean Stable Isotopes |
description |
Due to its persistence and potential ecological and health impacts, mercury (Hg) is a global pollutant of major concern that may reach high concentrations even in remote polar oceans. In contrast to the Arctic Ocean, studies documenting Hg contamination in the Southern Ocean are spatially restricted and large-scale monitoring is needed. Here, we present the first circumpolar assessment of Hg contamination in Antarctic marine ecosystems. Specifically, the Adelie penguin (Pygoscelis adeliae) was used as a bioindicator species, to examine regional variation across 24 colonies distributed across the entire Antarctic continent. Mercury was measured on body feathers collected from both adults (n = 485) and chicks (n = 48) between 2005 and 2021. Because penguins' diet represents the dominant source of Hg, feather delta 13C and delta 15N values were measured as proxies of feeding habitat and trophic position. As expected, chicks had lower Hg concentrations (mean +/- SD: 0.22 +/- 0.08 mu g center dot g-1) than adults (0.49 +/- 0.23 mu g center dot g-1), likely because of their shorter bioaccumulation period. In adults, spatial variation in feather Hg concentrations was driven by both trophic ecology and colony location. The highest Hg concentrations were observed in the Ross Sea, possibly because of a higher consumption of fish in the diet compared to other sites (krill-dominated diet). Such large-scale assessments are critical to assess the effectiveness of the Minamata Convention on Mercury. Owing to their circumpolar distribution and their ecological role in Antarctic marine ecosystems, Adelie penguins could be valuable bioindicators for tracking spatial and temporal trends of Hg across Antarctic waters in the future.Adelie penguins are relevant bioindicators of Hg contamination in Antarctic marine ecosystems.Feather Hg concentrations were measured in 24 breeding colonies (adults and chicks).The highest Hg concentrations were found in the Ross Sea.Both trophic ecology and colony location drove feather Hg ... |
author2 |
Cusset, Fanny Bustamante, Paco Carravieri, Alice Bertin, Clément Brasso, Rebecka Corsi, Ilaria Dunn, Michael Emmerson, Louise Guillou, Gaël Hart, Tom Juáres, Mariana Kato, Akiko Machado-Gaye, Ana Laura Michelot, Candice Olmastroni, Silvia Polito, Michael Raclot, Thierry Santos, Mercede Schmidt, Annie Southwell, Colin Soutullo, Alvaro Takahashi, Akinori Thiebot, Jean-Baptiste Trathan, Phil Vivion, Pierre Waluda, Claire Fort, Jérôme Cherel, Yves |
format |
Article in Journal/Newspaper |
author |
Cusset, Fanny Bustamante, Paco Carravieri, Alice Bertin, Clément Brasso, Rebecka Corsi, Ilaria Dunn, Michael Emmerson, Louise Guillou, Gaël Hart, Tom Juáres, Mariana Kato, Akiko Machado-Gaye, Ana Laura Michelot, Candice Olmastroni, Silvia Polito, Michael Raclot, Thierry Santos, Mercedes Schmidt, Annie Southwell, Colin Soutullo, Alvaro Takahashi, Akinori Thiebot, Jean-Baptiste Trathan, Phil Vivion, Pierre Waluda, Claire Fort, Jérôme Cherel, Yves |
author_facet |
Cusset, Fanny Bustamante, Paco Carravieri, Alice Bertin, Clément Brasso, Rebecka Corsi, Ilaria Dunn, Michael Emmerson, Louise Guillou, Gaël Hart, Tom Juáres, Mariana Kato, Akiko Machado-Gaye, Ana Laura Michelot, Candice Olmastroni, Silvia Polito, Michael Raclot, Thierry Santos, Mercedes Schmidt, Annie Southwell, Colin Soutullo, Alvaro Takahashi, Akinori Thiebot, Jean-Baptiste Trathan, Phil Vivion, Pierre Waluda, Claire Fort, Jérôme Cherel, Yves |
author_sort |
Cusset, Fanny |
title |
Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems |
title_short |
Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems |
title_full |
Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems |
title_fullStr |
Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems |
title_full_unstemmed |
Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems |
title_sort |
circumpolar assessment of mercury contamination: the adélie penguin as a bioindicator of antarctic marine ecosystems |
publishDate |
2023 |
url |
https://hdl.handle.net/11365/1270994 https://doi.org/10.1007/s10646-023-02709-9 https://link.springer.com/article/10.1007/s10646-023-02709-9 |
geographic |
Antarctic Arctic Arctic Ocean Ross Sea Southern Ocean |
geographic_facet |
Antarctic Arctic Arctic Ocean Ross Sea Southern Ocean |
genre |
Adelie penguin Antarc* Antarctic Arctic Arctic Ocean Pygoscelis adeliae Ross Sea Southern Ocean |
genre_facet |
Adelie penguin Antarc* Antarctic Arctic Arctic Ocean Pygoscelis adeliae Ross Sea Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/37878111 info:eu-repo/semantics/altIdentifier/wos/WOS:001086809900001 volume:32 issue:8 firstpage:1024 lastpage:1049 numberofpages:26 journal:ECOTOXICOLOGY https://hdl.handle.net/11365/1270994 doi:10.1007/s10646-023-02709-9 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85174849715 https://link.springer.com/article/10.1007/s10646-023-02709-9 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10646-023-02709-9 |
container_title |
Ecotoxicology |
container_volume |
32 |
container_issue |
8 |
container_start_page |
1024 |
op_container_end_page |
1049 |
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1811637333393408000 |
spelling |
ftunivsiena:oai:usiena-air.unisi.it:11365/1270994 2024-09-30T14:21:38+00:00 Circumpolar assessment of mercury contamination: the Adélie penguin as a bioindicator of Antarctic marine ecosystems Cusset, Fanny Bustamante, Paco Carravieri, Alice Bertin, Clément Brasso, Rebecka Corsi, Ilaria Dunn, Michael Emmerson, Louise Guillou, Gaël Hart, Tom Juáres, Mariana Kato, Akiko Machado-Gaye, Ana Laura Michelot, Candice Olmastroni, Silvia Polito, Michael Raclot, Thierry Santos, Mercedes Schmidt, Annie Southwell, Colin Soutullo, Alvaro Takahashi, Akinori Thiebot, Jean-Baptiste Trathan, Phil Vivion, Pierre Waluda, Claire Fort, Jérôme Cherel, Yves Cusset, Fanny Bustamante, Paco Carravieri, Alice Bertin, Clément Brasso, Rebecka Corsi, Ilaria Dunn, Michael Emmerson, Louise Guillou, Gaël Hart, Tom Juáres, Mariana Kato, Akiko Machado-Gaye, Ana Laura Michelot, Candice Olmastroni, Silvia Polito, Michael Raclot, Thierry Santos, Mercede Schmidt, Annie Southwell, Colin Soutullo, Alvaro Takahashi, Akinori Thiebot, Jean-Baptiste Trathan, Phil Vivion, Pierre Waluda, Claire Fort, Jérôme Cherel, Yves 2023 ELETTRONICO https://hdl.handle.net/11365/1270994 https://doi.org/10.1007/s10646-023-02709-9 https://link.springer.com/article/10.1007/s10646-023-02709-9 eng eng info:eu-repo/semantics/altIdentifier/pmid/37878111 info:eu-repo/semantics/altIdentifier/wos/WOS:001086809900001 volume:32 issue:8 firstpage:1024 lastpage:1049 numberofpages:26 journal:ECOTOXICOLOGY https://hdl.handle.net/11365/1270994 doi:10.1007/s10646-023-02709-9 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85174849715 https://link.springer.com/article/10.1007/s10646-023-02709-9 info:eu-repo/semantics/closedAccess Feather Hg Marine food web Seabird Southern Ocean Stable Isotopes info:eu-repo/semantics/article 2023 ftunivsiena https://doi.org/10.1007/s10646-023-02709-9 2024-09-17T00:02:42Z Due to its persistence and potential ecological and health impacts, mercury (Hg) is a global pollutant of major concern that may reach high concentrations even in remote polar oceans. In contrast to the Arctic Ocean, studies documenting Hg contamination in the Southern Ocean are spatially restricted and large-scale monitoring is needed. Here, we present the first circumpolar assessment of Hg contamination in Antarctic marine ecosystems. Specifically, the Adelie penguin (Pygoscelis adeliae) was used as a bioindicator species, to examine regional variation across 24 colonies distributed across the entire Antarctic continent. Mercury was measured on body feathers collected from both adults (n = 485) and chicks (n = 48) between 2005 and 2021. Because penguins' diet represents the dominant source of Hg, feather delta 13C and delta 15N values were measured as proxies of feeding habitat and trophic position. As expected, chicks had lower Hg concentrations (mean +/- SD: 0.22 +/- 0.08 mu g center dot g-1) than adults (0.49 +/- 0.23 mu g center dot g-1), likely because of their shorter bioaccumulation period. In adults, spatial variation in feather Hg concentrations was driven by both trophic ecology and colony location. The highest Hg concentrations were observed in the Ross Sea, possibly because of a higher consumption of fish in the diet compared to other sites (krill-dominated diet). Such large-scale assessments are critical to assess the effectiveness of the Minamata Convention on Mercury. Owing to their circumpolar distribution and their ecological role in Antarctic marine ecosystems, Adelie penguins could be valuable bioindicators for tracking spatial and temporal trends of Hg across Antarctic waters in the future.Adelie penguins are relevant bioindicators of Hg contamination in Antarctic marine ecosystems.Feather Hg concentrations were measured in 24 breeding colonies (adults and chicks).The highest Hg concentrations were found in the Ross Sea.Both trophic ecology and colony location drove feather Hg ... Article in Journal/Newspaper Adelie penguin Antarc* Antarctic Arctic Arctic Ocean Pygoscelis adeliae Ross Sea Southern Ocean Università degli Studi di Siena: USiena air Antarctic Arctic Arctic Ocean Ross Sea Southern Ocean Ecotoxicology 32 8 1024 1049 |