Foraging ecology drives mercury contamination in chick gulls from the English Channel
International audience Although mercury (Hg) occurs naturally, human activity is currently the greatest source of release and the ocean receives Hg inputs by rivers and atmospheric deposition. Seabirds including chicks serve as valuable bioindicators of Hg contamination, reflecting local contaminati...
Published in: | Chemosphere |
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Online Access: | https://hal.archives-ouvertes.fr/hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558/document https://hal.archives-ouvertes.fr/hal-02987558/file/Binkowski%20et%20al%202021%20CHEM.pdf https://doi.org/10.1016/j.chemosphere.2020.128622 |
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ftccsdartic:oai:HAL:hal-02987558v1 2023-05-15T17:07:55+02:00 Foraging ecology drives mercury contamination in chick gulls from the English Channel Binkowski, Lukasz, Fort, Jérôme Brault-Favrou, Maud Gallien, Fabrice Leguillou, Gilles Chastel, Olivier Bustamante, Paco Pedagogical University of Krakow LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Groupe Ornithologique Normand (GONm) Maison de l'estuaire de la Seine Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) GIP Seine Aval Ecotones (GIP Seine Aval) 2021 https://hal.archives-ouvertes.fr/hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558/document https://hal.archives-ouvertes.fr/hal-02987558/file/Binkowski%20et%20al%202021%20CHEM.pdf https://doi.org/10.1016/j.chemosphere.2020.128622 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2020.128622 hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558/document https://hal.archives-ouvertes.fr/hal-02987558/file/Binkowski%20et%20al%202021%20CHEM.pdf doi:10.1016/j.chemosphere.2020.128622 info:eu-repo/semantics/OpenAccess ISSN: 0045-6535 Chemosphere https://hal.archives-ouvertes.fr/hal-02987558 Chemosphere, Elsevier, 2021, 267, pp.128622. ⟨10.1016/j.chemosphere.2020.128622⟩ seabird chicks mercury bioaccumulation stable isotopes feeding ecology [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2021 ftccsdartic https://doi.org/10.1016/j.chemosphere.2020.128622 2021-10-24T00:29:09Z International audience Although mercury (Hg) occurs naturally, human activity is currently the greatest source of release and the ocean receives Hg inputs by rivers and atmospheric deposition. Seabirds including chicks serve as valuable bioindicators of Hg contamination, reflecting local contamination around the colony. This study investigates the ecological drivers (trophic position and foraging habitat) influencing Hg concentrations in blood and feathers of chicks of three sympatric marine gull species. Chicks were sampled between 2015 and 2017 in the Seine estuary, one of the most Hg contaminated rivers in Europe, and in the Normand-Breton Gulf (the Chausey Islands), 200 km west, as a reference site with limited contaminant inputs. The trophic status of the chicks was evaluated based on the relative abundance of stable isotopes (δ13C, δ15N and δ34S). There was a tight correlation between Hg concentrations, as well as the abundance of stable isotopes, in blood and feathers. Great black-backed gull had the highest blood Hg concentrations of the species (1.80±0.92 µg⋅g-1 dry weight (dw)); the Lesser black-backed gull had intermediate concentrations (0.61±0.18 µg⋅g-1 dw); and the European herring gull had the lowest (0.37±0.26 µg⋅g-1 dw). Individuals with the highest trophic position showed consistently the highest Hg concentrations. The positive relationship between Hg concentrations and the feeding habitat (marine vs terrestrial) indicated that the main source of Hg for gulls in the English Channel is marine prey. This exposure led to relatively high Hg concentrations in Great black-backed gull, which may produce toxic effects to individuals with potential consequences for their populations. Article in Journal/Newspaper Lesser black-backed gull Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Chemosphere 267 128622 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
seabird chicks mercury bioaccumulation stable isotopes feeding ecology [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
seabird chicks mercury bioaccumulation stable isotopes feeding ecology [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Binkowski, Lukasz, Fort, Jérôme Brault-Favrou, Maud Gallien, Fabrice Leguillou, Gilles Chastel, Olivier Bustamante, Paco Foraging ecology drives mercury contamination in chick gulls from the English Channel |
topic_facet |
seabird chicks mercury bioaccumulation stable isotopes feeding ecology [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience Although mercury (Hg) occurs naturally, human activity is currently the greatest source of release and the ocean receives Hg inputs by rivers and atmospheric deposition. Seabirds including chicks serve as valuable bioindicators of Hg contamination, reflecting local contamination around the colony. This study investigates the ecological drivers (trophic position and foraging habitat) influencing Hg concentrations in blood and feathers of chicks of three sympatric marine gull species. Chicks were sampled between 2015 and 2017 in the Seine estuary, one of the most Hg contaminated rivers in Europe, and in the Normand-Breton Gulf (the Chausey Islands), 200 km west, as a reference site with limited contaminant inputs. The trophic status of the chicks was evaluated based on the relative abundance of stable isotopes (δ13C, δ15N and δ34S). There was a tight correlation between Hg concentrations, as well as the abundance of stable isotopes, in blood and feathers. Great black-backed gull had the highest blood Hg concentrations of the species (1.80±0.92 µg⋅g-1 dry weight (dw)); the Lesser black-backed gull had intermediate concentrations (0.61±0.18 µg⋅g-1 dw); and the European herring gull had the lowest (0.37±0.26 µg⋅g-1 dw). Individuals with the highest trophic position showed consistently the highest Hg concentrations. The positive relationship between Hg concentrations and the feeding habitat (marine vs terrestrial) indicated that the main source of Hg for gulls in the English Channel is marine prey. This exposure led to relatively high Hg concentrations in Great black-backed gull, which may produce toxic effects to individuals with potential consequences for their populations. |
author2 |
Pedagogical University of Krakow LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Groupe Ornithologique Normand (GONm) Maison de l'estuaire de la Seine Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) GIP Seine Aval Ecotones (GIP Seine Aval) |
format |
Article in Journal/Newspaper |
author |
Binkowski, Lukasz, Fort, Jérôme Brault-Favrou, Maud Gallien, Fabrice Leguillou, Gilles Chastel, Olivier Bustamante, Paco |
author_facet |
Binkowski, Lukasz, Fort, Jérôme Brault-Favrou, Maud Gallien, Fabrice Leguillou, Gilles Chastel, Olivier Bustamante, Paco |
author_sort |
Binkowski, Lukasz, |
title |
Foraging ecology drives mercury contamination in chick gulls from the English Channel |
title_short |
Foraging ecology drives mercury contamination in chick gulls from the English Channel |
title_full |
Foraging ecology drives mercury contamination in chick gulls from the English Channel |
title_fullStr |
Foraging ecology drives mercury contamination in chick gulls from the English Channel |
title_full_unstemmed |
Foraging ecology drives mercury contamination in chick gulls from the English Channel |
title_sort |
foraging ecology drives mercury contamination in chick gulls from the english channel |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.archives-ouvertes.fr/hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558/document https://hal.archives-ouvertes.fr/hal-02987558/file/Binkowski%20et%20al%202021%20CHEM.pdf https://doi.org/10.1016/j.chemosphere.2020.128622 |
genre |
Lesser black-backed gull |
genre_facet |
Lesser black-backed gull |
op_source |
ISSN: 0045-6535 Chemosphere https://hal.archives-ouvertes.fr/hal-02987558 Chemosphere, Elsevier, 2021, 267, pp.128622. ⟨10.1016/j.chemosphere.2020.128622⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2020.128622 hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558 https://hal.archives-ouvertes.fr/hal-02987558/document https://hal.archives-ouvertes.fr/hal-02987558/file/Binkowski%20et%20al%202021%20CHEM.pdf doi:10.1016/j.chemosphere.2020.128622 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.chemosphere.2020.128622 |
container_title |
Chemosphere |
container_volume |
267 |
container_start_page |
128622 |
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1766063448956862464 |