Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods
International audience Chemical tracers (e.g., stable isotopes or trace metals) are increasingly used to study trophic ecology and feeding habits of marine organisms, while different factors can affect their values. In this context, the aim of this study was to provide information on ontogenic effec...
Published in: | Marine Ecology Progress Series |
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2011
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Online Access: | https://hal.archives-ouvertes.fr/hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856/document https://hal.archives-ouvertes.fr/hal-00614856/file/Chouvelon_et_al_2011_MEPS.pdf https://doi.org/10.3354/meps09159 |
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ftunivnantes:oai:HAL:hal-00614856v1 2023-05-15T17:38:35+02:00 Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods Chouvelon, Tiphaine Spitz, Jérôme Cherel, Yves Caurant, Florence Sirmel, Richard Mèndez-Fernandez, Paula Bustamante, Paco LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2011-07-18 https://hal.archives-ouvertes.fr/hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856/document https://hal.archives-ouvertes.fr/hal-00614856/file/Chouvelon_et_al_2011_MEPS.pdf https://doi.org/10.3354/meps09159 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09159 hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856/document https://hal.archives-ouvertes.fr/hal-00614856/file/Chouvelon_et_al_2011_MEPS.pdf doi:10.3354/meps09159 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.archives-ouvertes.fr/hal-00614856 Marine Ecology Progress Series, Inter Research, 2011, 433, pp.107-120. ⟨10.3354/meps09159⟩ stable isotopes metals trace elements ontogenesis prey ecological tracer Northeastern Atlantic [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2011 ftunivnantes https://doi.org/10.3354/meps09159 2022-08-09T23:11:31Z International audience Chemical tracers (e.g., stable isotopes or trace metals) are increasingly used to study trophic ecology and feeding habits of marine organisms, while different factors can affect their values. In this context, the aim of this study was to provide information on ontogenic effects on stable carbon and nitrogen values (d13C and d15N), and on cadmium (Cd) and mercury (Hg) concentrations in several cephalopod species from the Bay of Biscay (North-East Atlantic Ocean). To this end, individuals belonging to 3 species showing a wide range of sizes were analysed for muscle d13C and d15N values, muscle Hg and digestive gland Cd concentrations. Results showed that stable isotope ratios allowed discriminating specific feeding strategies during ontogenesis. Segregation between 5 cephalopod species in terms of trophic ecology was also evidenced (different isotopic niches). By contrast, Hg concentrations varied over the same order of magnitude in these 5 cephalopod species, despite higher levels in the benthic octopus Eledone cirrhosa. Consistently, Hg concentrations followed the same ontogenic pattern, as they increased with increasing body size/age of cephalopods. Finally, Cd concentrations varied over 3 orders of magnitude among the 5 species. Despite possible effects of physiology in terms of metal bioaccumulation, Cd concentrations were likely to reflect specific feeding preferences or feeding zones and ontogenic-related variability within a single species. Thus, ontogenetic effects have to be taken into account when stable isotope ratios of carbon and nitrogen or trace metals are used as ecological tracers, the best being to focus on a given class age. Article in Journal/Newspaper North East Atlantic Université de Nantes: HAL-UNIV-NANTES Marine Ecology Progress Series 433 107 120 |
institution |
Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
stable isotopes metals trace elements ontogenesis prey ecological tracer Northeastern Atlantic [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
stable isotopes metals trace elements ontogenesis prey ecological tracer Northeastern Atlantic [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Chouvelon, Tiphaine Spitz, Jérôme Cherel, Yves Caurant, Florence Sirmel, Richard Mèndez-Fernandez, Paula Bustamante, Paco Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods |
topic_facet |
stable isotopes metals trace elements ontogenesis prey ecological tracer Northeastern Atlantic [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience Chemical tracers (e.g., stable isotopes or trace metals) are increasingly used to study trophic ecology and feeding habits of marine organisms, while different factors can affect their values. In this context, the aim of this study was to provide information on ontogenic effects on stable carbon and nitrogen values (d13C and d15N), and on cadmium (Cd) and mercury (Hg) concentrations in several cephalopod species from the Bay of Biscay (North-East Atlantic Ocean). To this end, individuals belonging to 3 species showing a wide range of sizes were analysed for muscle d13C and d15N values, muscle Hg and digestive gland Cd concentrations. Results showed that stable isotope ratios allowed discriminating specific feeding strategies during ontogenesis. Segregation between 5 cephalopod species in terms of trophic ecology was also evidenced (different isotopic niches). By contrast, Hg concentrations varied over the same order of magnitude in these 5 cephalopod species, despite higher levels in the benthic octopus Eledone cirrhosa. Consistently, Hg concentrations followed the same ontogenic pattern, as they increased with increasing body size/age of cephalopods. Finally, Cd concentrations varied over 3 orders of magnitude among the 5 species. Despite possible effects of physiology in terms of metal bioaccumulation, Cd concentrations were likely to reflect specific feeding preferences or feeding zones and ontogenic-related variability within a single species. Thus, ontogenetic effects have to be taken into account when stable isotope ratios of carbon and nitrogen or trace metals are used as ecological tracers, the best being to focus on a given class age. |
author2 |
LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Chouvelon, Tiphaine Spitz, Jérôme Cherel, Yves Caurant, Florence Sirmel, Richard Mèndez-Fernandez, Paula Bustamante, Paco |
author_facet |
Chouvelon, Tiphaine Spitz, Jérôme Cherel, Yves Caurant, Florence Sirmel, Richard Mèndez-Fernandez, Paula Bustamante, Paco |
author_sort |
Chouvelon, Tiphaine |
title |
Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods |
title_short |
Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods |
title_full |
Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods |
title_fullStr |
Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods |
title_full_unstemmed |
Inter-specific and ontogenic differences in d13C and d15N values and Hg and Cd concentrations of cephalopods |
title_sort |
inter-specific and ontogenic differences in d13c and d15n values and hg and cd concentrations of cephalopods |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.archives-ouvertes.fr/hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856/document https://hal.archives-ouvertes.fr/hal-00614856/file/Chouvelon_et_al_2011_MEPS.pdf https://doi.org/10.3354/meps09159 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.archives-ouvertes.fr/hal-00614856 Marine Ecology Progress Series, Inter Research, 2011, 433, pp.107-120. ⟨10.3354/meps09159⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09159 hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856 https://hal.archives-ouvertes.fr/hal-00614856/document https://hal.archives-ouvertes.fr/hal-00614856/file/Chouvelon_et_al_2011_MEPS.pdf doi:10.3354/meps09159 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps09159 |
container_title |
Marine Ecology Progress Series |
container_volume |
433 |
container_start_page |
107 |
op_container_end_page |
120 |
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1766139082459578368 |