Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study
International audience Cephalopods represent an important pathway for mercury transfer through food-webs. Due to the general difficulties in capturing oceanic squid, beaks found in the diet of top predators can be used to study their life-cycles and ecological role. Using upper beaks of the giant wa...
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ftunivnantes:oai:HAL:hal-02904190v1 2023-05-15T18:25:00+02:00 Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study Queirós, José Bustamante, Paco Cherel, Yves Coelho, Joao Seco, José Roberts, Jim Pereira, Eduarda Xavier, José Marine and Environmental Sciences Centre (MARE UC) Universidade de Coimbra Coimbra 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.) 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) Centro de Estudos do Ambiente e do Mar, Departamento de Biologia Universidade de Aveiro Centro de Estudos do Ambiante e do Mar (CESAM) Scottish Oceans Institute University of St Andrews Scotland National Institute of Water and Atmospheric Research Wellington (NIWA) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2020 https://hal.science/hal-02904190 https://hal.science/hal-02904190/document https://hal.science/hal-02904190/file/Queiros%20et%20al%202020%20MER.pdf https://doi.org/10.1016/j.marenvres.2020.105049 en eng HAL CCSD Elsevier science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marenvres.2020.105049 hal-02904190 https://hal.science/hal-02904190 https://hal.science/hal-02904190/document https://hal.science/hal-02904190/file/Queiros%20et%20al%202020%20MER.pdf doi:10.1016/j.marenvres.2020.105049 info:eu-repo/semantics/OpenAccess ISSN: 0141-1136 EISSN: 1879-0291 Marine Environmental Research https://hal.science/hal-02904190 Marine Environmental Research, 2020, 161, pp.105049. ⟨10.1016/j.marenvres.2020.105049⟩ Southern Ocean Ontogenetic shifts Mercury Trace elements Bioaccumulation [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.1016/j.marenvres.2020.105049 2023-03-08T03:56:41Z International audience Cephalopods represent an important pathway for mercury transfer through food-webs. Due to the general difficulties in capturing oceanic squid, beaks found in the diet of top predators can be used to study their life-cycles and ecological role. Using upper beaks of the giant warty squid Moroteuthopsis longimana (major prey in the Southern Ocean), we describe a method to assess mercury concentrations along the life of cephalopods through the segmentary analysis of beak sections (i.e. rostrum’s tip and subsections along the hood). Distinct total mercury concentrations in the different subsections support that beaks can be used to study mercury levels in different periods of cephalopods’ life-cycle. Mercury values in the anterior (1.3 to 7.9 μg kg-1 dw) and posterior (7.8 to 12.5 μg kg-1 dw) subsections reflect juvenile and adult stages, respectively. Furthermore, these results confirm that mercury bioaccumulates continuously throughout the individuals’ life, with adults doubling their mercury concentrations to juveniles. Article in Journal/Newspaper Southern Ocean Université de Nantes: HAL-UNIV-NANTES Southern Ocean Marine Environmental Research 161 105049 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Southern Ocean Ontogenetic shifts Mercury Trace elements Bioaccumulation [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology |
spellingShingle |
Southern Ocean Ontogenetic shifts Mercury Trace elements Bioaccumulation [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology Queirós, José Bustamante, Paco Cherel, Yves Coelho, Joao Seco, José Roberts, Jim Pereira, Eduarda Xavier, José Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study |
topic_facet |
Southern Ocean Ontogenetic shifts Mercury Trace elements Bioaccumulation [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology |
description |
International audience Cephalopods represent an important pathway for mercury transfer through food-webs. Due to the general difficulties in capturing oceanic squid, beaks found in the diet of top predators can be used to study their life-cycles and ecological role. Using upper beaks of the giant warty squid Moroteuthopsis longimana (major prey in the Southern Ocean), we describe a method to assess mercury concentrations along the life of cephalopods through the segmentary analysis of beak sections (i.e. rostrum’s tip and subsections along the hood). Distinct total mercury concentrations in the different subsections support that beaks can be used to study mercury levels in different periods of cephalopods’ life-cycle. Mercury values in the anterior (1.3 to 7.9 μg kg-1 dw) and posterior (7.8 to 12.5 μg kg-1 dw) subsections reflect juvenile and adult stages, respectively. Furthermore, these results confirm that mercury bioaccumulates continuously throughout the individuals’ life, with adults doubling their mercury concentrations to juveniles. |
author2 |
Marine and Environmental Sciences Centre (MARE UC) Universidade de Coimbra Coimbra 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.) 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) Centro de Estudos do Ambiente e do Mar, Departamento de Biologia Universidade de Aveiro Centro de Estudos do Ambiante e do Mar (CESAM) Scottish Oceans Institute University of St Andrews Scotland National Institute of Water and Atmospheric Research Wellington (NIWA) British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Queirós, José Bustamante, Paco Cherel, Yves Coelho, Joao Seco, José Roberts, Jim Pereira, Eduarda Xavier, José |
author_facet |
Queirós, José Bustamante, Paco Cherel, Yves Coelho, Joao Seco, José Roberts, Jim Pereira, Eduarda Xavier, José |
author_sort |
Queirós, José |
title |
Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study |
title_short |
Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study |
title_full |
Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study |
title_fullStr |
Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study |
title_full_unstemmed |
Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the Giant Warty squid Moroteuthopsis longimana as a case study |
title_sort |
cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: the giant warty squid moroteuthopsis longimana as a case study |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02904190 https://hal.science/hal-02904190/document https://hal.science/hal-02904190/file/Queiros%20et%20al%202020%20MER.pdf https://doi.org/10.1016/j.marenvres.2020.105049 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 0141-1136 EISSN: 1879-0291 Marine Environmental Research https://hal.science/hal-02904190 Marine Environmental Research, 2020, 161, pp.105049. ⟨10.1016/j.marenvres.2020.105049⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marenvres.2020.105049 hal-02904190 https://hal.science/hal-02904190 https://hal.science/hal-02904190/document https://hal.science/hal-02904190/file/Queiros%20et%20al%202020%20MER.pdf doi:10.1016/j.marenvres.2020.105049 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.marenvres.2020.105049 |
container_title |
Marine Environmental Research |
container_volume |
161 |
container_start_page |
105049 |
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1766206122913431552 |