Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes
International audience The Bay of Biscay (north-east Atlantic) is an open marine ecosystem of particular concern in current European environmental policies. Indeed, it supports both a high biological diversity and numerous anthropogenic activities such as important fisheries. For the first time, sta...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | https://hal.science/hal-00694521 https://hal.science/hal-00694521/document https://hal.science/hal-00694521/file/Chouvelon_et_al._2012_DSR_part_I.pdf https://doi.org/10.1016/j.dsr.2012.02.010 |
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ftunivnantes:oai:HAL:hal-00694521v1 2023-05-15T17:38:20+02:00 Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes Chouvelon, Tiphaine Spitz, Jérôme Caurant, Florence Mèndez-Fernandez, Paula Autier, Julien Lassus-Débat, Aurélie Chappuis, Alexis Bustamante, Paco LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2012-07-02 https://hal.science/hal-00694521 https://hal.science/hal-00694521/document https://hal.science/hal-00694521/file/Chouvelon_et_al._2012_DSR_part_I.pdf https://doi.org/10.1016/j.dsr.2012.02.010 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2012.02.010 hal-00694521 https://hal.science/hal-00694521 https://hal.science/hal-00694521/document https://hal.science/hal-00694521/file/Chouvelon_et_al._2012_DSR_part_I.pdf doi:10.1016/j.dsr.2012.02.010 info:eu-repo/semantics/OpenAccess ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-00694521 Deep Sea Research Part I: Oceanographic Research Papers, 2012, 65, pp.113-124. ⟨10.1016/j.dsr.2012.02.010⟩ stable isotope trophic transfer fish mollusc crustaceans marine environment Metal [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2012 ftunivnantes https://doi.org/10.1016/j.dsr.2012.02.010 2023-03-08T00:11:02Z International audience The Bay of Biscay (north-east Atlantic) is an open marine ecosystem of particular concern in current European environmental policies. Indeed, it supports both a high biological diversity and numerous anthropogenic activities such as important fisheries. For the first time, stable isotope analyses (SIA) of carbon and nitrogen and analysis of total mercury (T-Hg) concentrations in the muscle (edible flesh) were performed on adult stages of a wide range of species (i.e., 120 species) from various taxa and various habitats of this ecosystem. Concentrations of this non-essential metal, toxic to all living organisms, ranged from 39 to 5074 ng.g-1 dry weight. Calculations of species' trophic positions (TPs) through SIA revealed a limited effect of TP in explaining Hg bioaccumulation by high trophic level consumers in particular. On the contrary, our results suggest an important role of habitat and/or feeding zone, which strongly influence muscle Hg bioaccumulation. Deep-sea fish species effectively presented the highest Hg concentrations. Possible interactions between biological factors (e.g., age of deep-sea organisms) and bioavailability of the metal in the deep-sea environment are discussed to explain such enhanced bioaccumulation of Hg by deep-sea fauna in the Bay of Biscay. This study also highlights a potential risk for human health when deep-sea fish are consumed frequently. Article in Journal/Newspaper North East Atlantic Université de Nantes: HAL-UNIV-NANTES Deep Sea Research Part I: Oceanographic Research Papers 65 113 124 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
stable isotope trophic transfer fish mollusc crustaceans marine environment Metal [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
stable isotope trophic transfer fish mollusc crustaceans marine environment Metal [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Chouvelon, Tiphaine Spitz, Jérôme Caurant, Florence Mèndez-Fernandez, Paula Autier, Julien Lassus-Débat, Aurélie Chappuis, Alexis Bustamante, Paco Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
topic_facet |
stable isotope trophic transfer fish mollusc crustaceans marine environment Metal [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience The Bay of Biscay (north-east Atlantic) is an open marine ecosystem of particular concern in current European environmental policies. Indeed, it supports both a high biological diversity and numerous anthropogenic activities such as important fisheries. For the first time, stable isotope analyses (SIA) of carbon and nitrogen and analysis of total mercury (T-Hg) concentrations in the muscle (edible flesh) were performed on adult stages of a wide range of species (i.e., 120 species) from various taxa and various habitats of this ecosystem. Concentrations of this non-essential metal, toxic to all living organisms, ranged from 39 to 5074 ng.g-1 dry weight. Calculations of species' trophic positions (TPs) through SIA revealed a limited effect of TP in explaining Hg bioaccumulation by high trophic level consumers in particular. On the contrary, our results suggest an important role of habitat and/or feeding zone, which strongly influence muscle Hg bioaccumulation. Deep-sea fish species effectively presented the highest Hg concentrations. Possible interactions between biological factors (e.g., age of deep-sea organisms) and bioavailability of the metal in the deep-sea environment are discussed to explain such enhanced bioaccumulation of Hg by deep-sea fauna in the Bay of Biscay. This study also highlights a potential risk for human health when deep-sea fish are consumed frequently. |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Chouvelon, Tiphaine Spitz, Jérôme Caurant, Florence Mèndez-Fernandez, Paula Autier, Julien Lassus-Débat, Aurélie Chappuis, Alexis Bustamante, Paco |
author_facet |
Chouvelon, Tiphaine Spitz, Jérôme Caurant, Florence Mèndez-Fernandez, Paula Autier, Julien Lassus-Débat, Aurélie Chappuis, Alexis Bustamante, Paco |
author_sort |
Chouvelon, Tiphaine |
title |
Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
title_short |
Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
title_full |
Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
title_fullStr |
Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
title_full_unstemmed |
Enhanced bioaccumulation of mercury in deep-sea fauna from the Bay of Biscay (north-east Atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
title_sort |
enhanced bioaccumulation of mercury in deep-sea fauna from the bay of biscay (north-east atlantic) in relation to trophic positions identified by analysis of carbon and nitrogen stable isotopes |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00694521 https://hal.science/hal-00694521/document https://hal.science/hal-00694521/file/Chouvelon_et_al._2012_DSR_part_I.pdf https://doi.org/10.1016/j.dsr.2012.02.010 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-00694521 Deep Sea Research Part I: Oceanographic Research Papers, 2012, 65, pp.113-124. ⟨10.1016/j.dsr.2012.02.010⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2012.02.010 hal-00694521 https://hal.science/hal-00694521 https://hal.science/hal-00694521/document https://hal.science/hal-00694521/file/Chouvelon_et_al._2012_DSR_part_I.pdf doi:10.1016/j.dsr.2012.02.010 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2012.02.010 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
65 |
container_start_page |
113 |
op_container_end_page |
124 |
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