Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes
International audience We investigated seasonal shifts in diet and distribution of fin whales Bala en optera physalus occurring in the western Mediterranean Sea. For this purpose, we combined carbon and nitrogen stable isotope ratios (δ13C, δ15N) along 10 baleen plates collected from stranded fin wh...
Published in: | Marine Ecology Progress Series |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2011
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Subjects: | |
Online Access: | https://hal.science/hal-00649589 https://hal.science/hal-00649589/document https://hal.science/hal-00649589/file/m438p285.pdf https://doi.org/10.3354/meps09269 |
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ftceafr:oai:HAL:hal-00649589v1 |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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language |
English |
topic |
Environmental change Migration Satellite telemetry Foraging Meganyctiphanes norvegica Mediterranean Sea [SDE]Environmental Sciences |
spellingShingle |
Environmental change Migration Satellite telemetry Foraging Meganyctiphanes norvegica Mediterranean Sea [SDE]Environmental Sciences Bentaleb, Ilham Martin, C. Vrac, M. Mate, B. Mayzaud, Patrick Siret, D. de Stephanis, Renaud Guinet, Christophe Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
topic_facet |
Environmental change Migration Satellite telemetry Foraging Meganyctiphanes norvegica Mediterranean Sea [SDE]Environmental Sciences |
description |
International audience We investigated seasonal shifts in diet and distribution of fin whales Bala en optera physalus occurring in the western Mediterranean Sea. For this purpose, we combined carbon and nitrogen stable isotope ratios (δ13C, δ15N) along 10 baleen plates collected from stranded fin whales between 1975 and 2002 with satellite tag deployments on 11 fin whales during summer 2003. Baleen plate stable isotopes were compared with those of the krill Meganyctiphanes norvegica, the main prey of fin whales in the northwestern Mediterranean Sea. Two plates collected near Malaga, Spain, exhibited larger δ13C variations, while only smaller variations could be detected in the other 8. While all mean baleen plate results were consistent with the δ13C signature of Mediterranean M. norvegica, the most depleted δ13C values were intermediate between those of Atlantic and Mediterranean M. norvegica, suggesting westward migrations perhaps extending to the Strait of Gibraltar but not extensive, prolonged feeding in the Northeast Atlantic. This pattern was confirmed by satellite tracking; 1 out of 8 fin whales we successfully tracked left the Mediterranean for the Atlantic. Longer-term changes in isotopic signatures of baleen plates exhibited significant depletion trends, indicating that changes due to increasing input of nutrients and anthropogenic carbon are occurring in the western Mediterranean Sea ecosystem. |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Marine Mammal Institute Oregon State University (OSU) 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) 1 allée Louis de Villetain CIRCé Department of Conservation Biology Estación Biológica de Doñana (EBD) Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Bentaleb, Ilham Martin, C. Vrac, M. Mate, B. Mayzaud, Patrick Siret, D. de Stephanis, Renaud Guinet, Christophe |
author_facet |
Bentaleb, Ilham Martin, C. Vrac, M. Mate, B. Mayzaud, Patrick Siret, D. de Stephanis, Renaud Guinet, Christophe |
author_sort |
Bentaleb, Ilham |
title |
Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
title_short |
Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
title_full |
Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
title_fullStr |
Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
title_full_unstemmed |
Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
title_sort |
foraging ecology of mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-00649589 https://hal.science/hal-00649589/document https://hal.science/hal-00649589/file/m438p285.pdf https://doi.org/10.3354/meps09269 |
long_lat |
ENVELOPE(132.817,132.817,67.178,67.178) |
geographic |
Bala |
geographic_facet |
Bala |
genre |
Meganyctiphanes norvegica Northeast Atlantic |
genre_facet |
Meganyctiphanes norvegica Northeast Atlantic |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00649589 Marine Ecology Progress Series, 2011, 438, pp.285-302. ⟨10.3354/meps09269⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09269 hal-00649589 https://hal.science/hal-00649589 https://hal.science/hal-00649589/document https://hal.science/hal-00649589/file/m438p285.pdf doi:10.3354/meps09269 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps09269 |
container_title |
Marine Ecology Progress Series |
container_volume |
438 |
container_start_page |
285 |
op_container_end_page |
302 |
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1801378897254678528 |
spelling |
ftceafr:oai:HAL:hal-00649589v1 2024-06-09T07:47:38+00:00 Foraging ecology of Mediterranean fin whales in a changing environment elucidated by satellite tracking and baleen plate stable isotopes Bentaleb, Ilham Martin, C. Vrac, M. Mate, B. Mayzaud, Patrick Siret, D. de Stephanis, Renaud Guinet, Christophe Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Marine Mammal Institute Oregon State University (OSU) 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) 1 allée Louis de Villetain CIRCé Department of Conservation Biology Estación Biológica de Doñana (EBD) Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) 2011 https://hal.science/hal-00649589 https://hal.science/hal-00649589/document https://hal.science/hal-00649589/file/m438p285.pdf https://doi.org/10.3354/meps09269 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps09269 hal-00649589 https://hal.science/hal-00649589 https://hal.science/hal-00649589/document https://hal.science/hal-00649589/file/m438p285.pdf doi:10.3354/meps09269 info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-00649589 Marine Ecology Progress Series, 2011, 438, pp.285-302. ⟨10.3354/meps09269⟩ Environmental change Migration Satellite telemetry Foraging Meganyctiphanes norvegica Mediterranean Sea [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2011 ftceafr https://doi.org/10.3354/meps09269 2024-05-16T14:30:04Z International audience We investigated seasonal shifts in diet and distribution of fin whales Bala en optera physalus occurring in the western Mediterranean Sea. For this purpose, we combined carbon and nitrogen stable isotope ratios (δ13C, δ15N) along 10 baleen plates collected from stranded fin whales between 1975 and 2002 with satellite tag deployments on 11 fin whales during summer 2003. Baleen plate stable isotopes were compared with those of the krill Meganyctiphanes norvegica, the main prey of fin whales in the northwestern Mediterranean Sea. Two plates collected near Malaga, Spain, exhibited larger δ13C variations, while only smaller variations could be detected in the other 8. While all mean baleen plate results were consistent with the δ13C signature of Mediterranean M. norvegica, the most depleted δ13C values were intermediate between those of Atlantic and Mediterranean M. norvegica, suggesting westward migrations perhaps extending to the Strait of Gibraltar but not extensive, prolonged feeding in the Northeast Atlantic. This pattern was confirmed by satellite tracking; 1 out of 8 fin whales we successfully tracked left the Mediterranean for the Atlantic. Longer-term changes in isotopic signatures of baleen plates exhibited significant depletion trends, indicating that changes due to increasing input of nutrients and anthropogenic carbon are occurring in the western Mediterranean Sea ecosystem. Article in Journal/Newspaper Meganyctiphanes norvegica Northeast Atlantic HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Bala ENVELOPE(132.817,132.817,67.178,67.178) Marine Ecology Progress Series 438 285 302 |