Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica
International audience We used the stable isotope method to investigate the ecological niches of Antarctic fishes, with d13C and d15N as proxies of fish habitats and dietary habits, respectively. Muscle isotopic signature was measured for each of 237 delipidated tissue samples from 27 fish species c...
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ftmuseumnhn:oai:HAL:hal-00613950v1 2024-02-11T09:58:32+01:00 Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica Cherel, Yves Koubbi, Philippe Giraldo, Carolina Penot, Florian Tavernier, Eric Moteki, Masato Ozouf-Costaz, Catherine Causse, Romain Chartier, Amélie Hosie, Graham Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Departement Génie Biologique, IUT Calais-Boulogne Université du Littoral Côte d'Opale (ULCO) Tokyo University of Marine Science and Technology (TUMSAT) Service de Systématique Moléculaire (SSM) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) Département Milieux et Peuplements Aquatiques Muséum national d'Histoire naturelle (MNHN) Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy 2011 https://hal.science/hal-00613950 https://doi.org/10.1016/j.polar.2010.12.004 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.polar.2010.12.004 hal-00613950 https://hal.science/hal-00613950 doi:10.1016/j.polar.2010.12.004 ISSN: 1873-9652 Polar Science https://hal.science/hal-00613950 Polar Science, 2011, 5, pp.286-297. ⟨10.1016/j.polar.2010.12.004⟩ Benthic Ecological niche Habitat Pelagic Southern Ocean Stable isotopes [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2011 ftmuseumnhn https://doi.org/10.1016/j.polar.2010.12.004 2024-01-24T17:21:02Z International audience We used the stable isotope method to investigate the ecological niches of Antarctic fishes, with d13C and d15N as proxies of fish habitats and dietary habits, respectively. Muscle isotopic signature was measured for each of 237 delipidated tissue samples from 27 fish species collected offshore Ade'lie Land, East Antarctica. Overall, d13C values ranged from 25.3& to 18.2&, thus allowing characterizing of the fish habitats, with inshore/benthic species having more positive d13C signatures than offshore/pelagic ones. No clear difference in the d13C values of pelagic fishes was found between species living in neritic and oceanic waters. Overall, the d15N signatures of neritic pelagic and epibenthic fishes encompassedw1.0 trophic level (3.1&), a higher difference than that (1.4&) found within the oceanic assemblage. Fishes with the lowest and highest d15Nvalues are primarily invertebrate- and fish-eaters, respectively. The isotopic niches of fishes illustrate the different mechanisms allowing coexistence, with most fishes segregating at least by one of the two niche axes (d13Cand d15N).Muscle isotopic values also document interindividual foraging specialization over the long-term in coastal benthic fishes, but not inmore offshore pelagic species. Finally, the d15Nsignatures of fishes overlap with those of penguins and seals, indicating that seabirds and marine mammals share the upper levels of the Antarctic pelagic ecosystem with some large fish species. In conclusion, the concept of isotopic niche is a powerful tool to investigate various aspects of the ecological niche of Antarctic fishes, thus complementing the use of other conventional and non-conventional approaches. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Polar Science Polar Science Southern Ocean Muséum National d'Histoire Naturelle (MNHM): HAL Antarctic Southern Ocean The Antarctic East Antarctica Polar Science 5 2 286 297 |
institution |
Open Polar |
collection |
Muséum National d'Histoire Naturelle (MNHM): HAL |
op_collection_id |
ftmuseumnhn |
language |
English |
topic |
Benthic Ecological niche Habitat Pelagic Southern Ocean Stable isotopes [SDE]Environmental Sciences |
spellingShingle |
Benthic Ecological niche Habitat Pelagic Southern Ocean Stable isotopes [SDE]Environmental Sciences Cherel, Yves Koubbi, Philippe Giraldo, Carolina Penot, Florian Tavernier, Eric Moteki, Masato Ozouf-Costaz, Catherine Causse, Romain Chartier, Amélie Hosie, Graham Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica |
topic_facet |
Benthic Ecological niche Habitat Pelagic Southern Ocean Stable isotopes [SDE]Environmental Sciences |
description |
International audience We used the stable isotope method to investigate the ecological niches of Antarctic fishes, with d13C and d15N as proxies of fish habitats and dietary habits, respectively. Muscle isotopic signature was measured for each of 237 delipidated tissue samples from 27 fish species collected offshore Ade'lie Land, East Antarctica. Overall, d13C values ranged from 25.3& to 18.2&, thus allowing characterizing of the fish habitats, with inshore/benthic species having more positive d13C signatures than offshore/pelagic ones. No clear difference in the d13C values of pelagic fishes was found between species living in neritic and oceanic waters. Overall, the d15N signatures of neritic pelagic and epibenthic fishes encompassedw1.0 trophic level (3.1&), a higher difference than that (1.4&) found within the oceanic assemblage. Fishes with the lowest and highest d15Nvalues are primarily invertebrate- and fish-eaters, respectively. The isotopic niches of fishes illustrate the different mechanisms allowing coexistence, with most fishes segregating at least by one of the two niche axes (d13Cand d15N).Muscle isotopic values also document interindividual foraging specialization over the long-term in coastal benthic fishes, but not inmore offshore pelagic species. Finally, the d15Nsignatures of fishes overlap with those of penguins and seals, indicating that seabirds and marine mammals share the upper levels of the Antarctic pelagic ecosystem with some large fish species. In conclusion, the concept of isotopic niche is a powerful tool to investigate various aspects of the ecological niche of Antarctic fishes, thus complementing the use of other conventional and non-conventional approaches. |
author2 |
Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Departement Génie Biologique, IUT Calais-Boulogne Université du Littoral Côte d'Opale (ULCO) Tokyo University of Marine Science and Technology (TUMSAT) Service de Systématique Moléculaire (SSM) Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS) Département Milieux et Peuplements Aquatiques Muséum national d'Histoire naturelle (MNHN) Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy |
format |
Article in Journal/Newspaper |
author |
Cherel, Yves Koubbi, Philippe Giraldo, Carolina Penot, Florian Tavernier, Eric Moteki, Masato Ozouf-Costaz, Catherine Causse, Romain Chartier, Amélie Hosie, Graham |
author_facet |
Cherel, Yves Koubbi, Philippe Giraldo, Carolina Penot, Florian Tavernier, Eric Moteki, Masato Ozouf-Costaz, Catherine Causse, Romain Chartier, Amélie Hosie, Graham |
author_sort |
Cherel, Yves |
title |
Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica |
title_short |
Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica |
title_full |
Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica |
title_fullStr |
Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica |
title_full_unstemmed |
Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica |
title_sort |
isotopic niches of fishes in coastal, neritic and oceanic waters off adélie land, antarctica |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-00613950 https://doi.org/10.1016/j.polar.2010.12.004 |
geographic |
Antarctic Southern Ocean The Antarctic East Antarctica |
geographic_facet |
Antarctic Southern Ocean The Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica Polar Science Polar Science Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Polar Science Polar Science Southern Ocean |
op_source |
ISSN: 1873-9652 Polar Science https://hal.science/hal-00613950 Polar Science, 2011, 5, pp.286-297. ⟨10.1016/j.polar.2010.12.004⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.polar.2010.12.004 hal-00613950 https://hal.science/hal-00613950 doi:10.1016/j.polar.2010.12.004 |
op_doi |
https://doi.org/10.1016/j.polar.2010.12.004 |
container_title |
Polar Science |
container_volume |
5 |
container_issue |
2 |
container_start_page |
286 |
op_container_end_page |
297 |
_version_ |
1790594207147098112 |