Trophic ecology drives trace element concentrations in the Antarctic octopod community
International audience Despite the Antarctic Ocean being considered a pristine environment, elevated trace element concentrations have been reported in many marine organisms. The Antarctic Ocean is particularly vulnerable to climate change, which can also affect the bioaccumulation of trace element...
Published in: | Science of The Total Environment |
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ftunivnantes:oai:HAL:hal-03126737v1 2023-05-15T13:30:51+02:00 Trophic ecology drives trace element concentrations in the Antarctic octopod community Lischka, Alexandra Bustamante, Paco Braid, H. Piatkowski, Uwe Lacoue-Labarthe, T. Auckland University of Technology (AUT) 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.) Helmholtz Centre for Ocean Research Kiel (GEOMAR) 2021-05 https://hal.science/hal-03126737 https://hal.science/hal-03126737/document https://hal.science/hal-03126737/file/Lischka%20et%20al%202021%20STOTEN.pdf https://doi.org/10.1016/j.scitotenv.2020.144373 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2020.144373 hal-03126737 https://hal.science/hal-03126737 https://hal.science/hal-03126737/document https://hal.science/hal-03126737/file/Lischka%20et%20al%202021%20STOTEN.pdf doi:10.1016/j.scitotenv.2020.144373 info:eu-repo/semantics/OpenAccess ISSN: 0048-9697 EISSN: 1879-1026 Science of the Total Environment https://hal.science/hal-03126737 Science of the Total Environment, 2021, 768, pp.144373. ⟨10.1016/j.scitotenv.2020.144373⟩ Cephalopods Cd Hg Southern Ocean Antarctica Stable Isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2021 ftunivnantes https://doi.org/10.1016/j.scitotenv.2020.144373 2023-03-08T03:18:58Z International audience Despite the Antarctic Ocean being considered a pristine environment, elevated trace element concentrations have been reported in many marine organisms. The Antarctic Ocean is particularly vulnerable to climate change, which can also affect the bioaccumulation of trace element concentrations in biota. While Antarctic octopods are key components of the regional food webs as prey for a variety of predators (e.g., seals, fish, and seabirds), their contamination state by trace elements remains largely unknown. This study investigated the trace element concentrations in relation to the trophic ecology in Antarctic octopods. Stable isotope values (δ13C and δ15N) and trace element concentrations (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, V, and Zn) were measured in eight different species (Adelieledone polymorpha, Pareledone aequipapillae, P. albimaculata, P. aurata, P. charcoti, P. cornuta, P. felix, and P. turqueti) sampled near Elephant Island, close to the Antarctic Peninsula. Stable isotopes of δ15N varied among species, with significant differences between A. polymorpha and P. aurata suggesting potential niche segregation. Trace element concentrations also differed among species and with sampling depth, which likely reflects their trophic ecology. The data presented in this study provides the first insight into the trace element concentrations for these endemic octopods in this vulnerable habitat and their stable isotope values. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Elephant Island Southern Ocean Université de Nantes: HAL-UNIV-NANTES Antarctic Antarctic Ocean Antarctic Peninsula Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) Southern Ocean The Antarctic Science of The Total Environment 768 144373 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Cephalopods Cd Hg Southern Ocean Antarctica Stable Isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Cephalopods Cd Hg Southern Ocean Antarctica Stable Isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Lischka, Alexandra Bustamante, Paco Braid, H. Piatkowski, Uwe Lacoue-Labarthe, T. Trophic ecology drives trace element concentrations in the Antarctic octopod community |
topic_facet |
Cephalopods Cd Hg Southern Ocean Antarctica Stable Isotopes [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Despite the Antarctic Ocean being considered a pristine environment, elevated trace element concentrations have been reported in many marine organisms. The Antarctic Ocean is particularly vulnerable to climate change, which can also affect the bioaccumulation of trace element concentrations in biota. While Antarctic octopods are key components of the regional food webs as prey for a variety of predators (e.g., seals, fish, and seabirds), their contamination state by trace elements remains largely unknown. This study investigated the trace element concentrations in relation to the trophic ecology in Antarctic octopods. Stable isotope values (δ13C and δ15N) and trace element concentrations (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, V, and Zn) were measured in eight different species (Adelieledone polymorpha, Pareledone aequipapillae, P. albimaculata, P. aurata, P. charcoti, P. cornuta, P. felix, and P. turqueti) sampled near Elephant Island, close to the Antarctic Peninsula. Stable isotopes of δ15N varied among species, with significant differences between A. polymorpha and P. aurata suggesting potential niche segregation. Trace element concentrations also differed among species and with sampling depth, which likely reflects their trophic ecology. The data presented in this study provides the first insight into the trace element concentrations for these endemic octopods in this vulnerable habitat and their stable isotope values. |
author2 |
Auckland University of Technology (AUT) 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.) Helmholtz Centre for Ocean Research Kiel (GEOMAR) |
format |
Article in Journal/Newspaper |
author |
Lischka, Alexandra Bustamante, Paco Braid, H. Piatkowski, Uwe Lacoue-Labarthe, T. |
author_facet |
Lischka, Alexandra Bustamante, Paco Braid, H. Piatkowski, Uwe Lacoue-Labarthe, T. |
author_sort |
Lischka, Alexandra |
title |
Trophic ecology drives trace element concentrations in the Antarctic octopod community |
title_short |
Trophic ecology drives trace element concentrations in the Antarctic octopod community |
title_full |
Trophic ecology drives trace element concentrations in the Antarctic octopod community |
title_fullStr |
Trophic ecology drives trace element concentrations in the Antarctic octopod community |
title_full_unstemmed |
Trophic ecology drives trace element concentrations in the Antarctic octopod community |
title_sort |
trophic ecology drives trace element concentrations in the antarctic octopod community |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03126737 https://hal.science/hal-03126737/document https://hal.science/hal-03126737/file/Lischka%20et%20al%202021%20STOTEN.pdf https://doi.org/10.1016/j.scitotenv.2020.144373 |
long_lat |
ENVELOPE(-55.184,-55.184,-61.085,-61.085) |
geographic |
Antarctic Antarctic Ocean Antarctic Peninsula Elephant Island Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean Antarctic Peninsula Elephant Island Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Elephant Island Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Elephant Island Southern Ocean |
op_source |
ISSN: 0048-9697 EISSN: 1879-1026 Science of the Total Environment https://hal.science/hal-03126737 Science of the Total Environment, 2021, 768, pp.144373. ⟨10.1016/j.scitotenv.2020.144373⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.scitotenv.2020.144373 hal-03126737 https://hal.science/hal-03126737 https://hal.science/hal-03126737/document https://hal.science/hal-03126737/file/Lischka%20et%20al%202021%20STOTEN.pdf doi:10.1016/j.scitotenv.2020.144373 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2020.144373 |
container_title |
Science of The Total Environment |
container_volume |
768 |
container_start_page |
144373 |
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1766013195269439488 |