Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary
International audience The biodiversity of the Mediterranean Sea is undergoing important changes. Cetaceans, as top predators, are animportant component of marine ecosystems. The seasonal distribution and abundance of several cetaceanspecies were studied with a large aerial survey over the North-Wes...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.archives-ouvertes.fr/hal-01510161 https://doi.org/10.1016/j.dsr2.2016.12.011 |
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ftccsdartic:oai:HAL:hal-01510161v1 2023-05-15T16:13:17+02:00 Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary Laran, Sophie Pettex, Emeline Authier, Matthieu Blanck, Aurélie David, Lea Dorémus, Ghislain Falchetto, Hélène Monestiez, Pascal, Van Canneyt, Olivier Ridoux, Vincent Observatoire PELAGIS UMS 3462 (PELAGIS) LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Agence des Aires Marines Protégées EcoOcéan Institut France Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2017 https://hal.archives-ouvertes.fr/hal-01510161 https://doi.org/10.1016/j.dsr2.2016.12.011 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2016.12.011 hal-01510161 https://hal.archives-ouvertes.fr/hal-01510161 doi:10.1016/j.dsr2.2016.12.011 ISSN: 0967-0645 Deep Sea Research Part II: Topical Studies in Oceanography https://hal.archives-ouvertes.fr/hal-01510161 Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier, 2017, 141, pp.20-30. ⟨10.1016/j.dsr2.2016.12.011⟩ Pelagos sanctuary Sea Mediterranean Cetaceans Fin whale Aerial survey Striped dolphin Common bottlenose dolphin [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.1016/j.dsr2.2016.12.011 2021-11-07T03:54:59Z International audience The biodiversity of the Mediterranean Sea is undergoing important changes. Cetaceans, as top predators, are animportant component of marine ecosystems. The seasonal distribution and abundance of several cetaceanspecies were studied with a large aerial survey over the North-Western Mediterranean Sea, including theinternational Pelagos sanctuary, the largest Marine Protected Area (MPA) designed for marine mammals in theMediterranean. A total of 8 distinct species of cetaceans were identified, and their occurrence within thesanctuary was investigated. Abundance estimates were obtained for three groups of species: the smalldelphinids (striped dolphins mainly), the bottlenose dolphin and the fin whale. There was a seasonal variationin striped dolphin abundance between winter (57,300 individuals, 95% CI: 34,500–102,000) and summer(130,000, 95% CI: 76,800–222,100). In contrast, bottlenose dolphin winter abundance was thrice that ofsummer. It was also the only species to exhibit any preference for the Pelagos sanctuary. Fin whale abundancehad the reverse pattern with winter abundance (1000 individuals, 95% CI: 500–2500) and summer (2500individuals, 95% CI: 1500–4300), without any preference for the sanctuary. Risso's dolphins, pilot whales andsperm whales did not exhibit strong seasonal pattern in their abundance. These results provide baselineestimates which can be used to inform conservation policies and instruments such as the Habitats Directive orthe recent European Marine Strategy Framework Directive. Article in Journal/Newspaper Fin whale Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Deep Sea Research Part II: Topical Studies in Oceanography 141 20 30 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Pelagos sanctuary Sea Mediterranean Cetaceans Fin whale Aerial survey Striped dolphin Common bottlenose dolphin [SDE]Environmental Sciences |
spellingShingle |
Pelagos sanctuary Sea Mediterranean Cetaceans Fin whale Aerial survey Striped dolphin Common bottlenose dolphin [SDE]Environmental Sciences Laran, Sophie Pettex, Emeline Authier, Matthieu Blanck, Aurélie David, Lea Dorémus, Ghislain Falchetto, Hélène Monestiez, Pascal, Van Canneyt, Olivier Ridoux, Vincent Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary |
topic_facet |
Pelagos sanctuary Sea Mediterranean Cetaceans Fin whale Aerial survey Striped dolphin Common bottlenose dolphin [SDE]Environmental Sciences |
description |
International audience The biodiversity of the Mediterranean Sea is undergoing important changes. Cetaceans, as top predators, are animportant component of marine ecosystems. The seasonal distribution and abundance of several cetaceanspecies were studied with a large aerial survey over the North-Western Mediterranean Sea, including theinternational Pelagos sanctuary, the largest Marine Protected Area (MPA) designed for marine mammals in theMediterranean. A total of 8 distinct species of cetaceans were identified, and their occurrence within thesanctuary was investigated. Abundance estimates were obtained for three groups of species: the smalldelphinids (striped dolphins mainly), the bottlenose dolphin and the fin whale. There was a seasonal variationin striped dolphin abundance between winter (57,300 individuals, 95% CI: 34,500–102,000) and summer(130,000, 95% CI: 76,800–222,100). In contrast, bottlenose dolphin winter abundance was thrice that ofsummer. It was also the only species to exhibit any preference for the Pelagos sanctuary. Fin whale abundancehad the reverse pattern with winter abundance (1000 individuals, 95% CI: 500–2500) and summer (2500individuals, 95% CI: 1500–4300), without any preference for the sanctuary. Risso's dolphins, pilot whales andsperm whales did not exhibit strong seasonal pattern in their abundance. These results provide baselineestimates which can be used to inform conservation policies and instruments such as the Habitats Directive orthe recent European Marine Strategy Framework Directive. |
author2 |
Observatoire PELAGIS UMS 3462 (PELAGIS) LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS) Agence des Aires Marines Protégées EcoOcéan Institut France Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Laran, Sophie Pettex, Emeline Authier, Matthieu Blanck, Aurélie David, Lea Dorémus, Ghislain Falchetto, Hélène Monestiez, Pascal, Van Canneyt, Olivier Ridoux, Vincent |
author_facet |
Laran, Sophie Pettex, Emeline Authier, Matthieu Blanck, Aurélie David, Lea Dorémus, Ghislain Falchetto, Hélène Monestiez, Pascal, Van Canneyt, Olivier Ridoux, Vincent |
author_sort |
Laran, Sophie |
title |
Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary |
title_short |
Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary |
title_full |
Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary |
title_fullStr |
Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary |
title_full_unstemmed |
Seasonal distribution and abundance of cetaceans within French waters- Part I: The North-Western Mediterranean, including the Pelagos sanctuary |
title_sort |
seasonal distribution and abundance of cetaceans within french waters- part i: the north-western mediterranean, including the pelagos sanctuary |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01510161 https://doi.org/10.1016/j.dsr2.2016.12.011 |
genre |
Fin whale |
genre_facet |
Fin whale |
op_source |
ISSN: 0967-0645 Deep Sea Research Part II: Topical Studies in Oceanography https://hal.archives-ouvertes.fr/hal-01510161 Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier, 2017, 141, pp.20-30. ⟨10.1016/j.dsr2.2016.12.011⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr2.2016.12.011 hal-01510161 https://hal.archives-ouvertes.fr/hal-01510161 doi:10.1016/j.dsr2.2016.12.011 |
op_doi |
https://doi.org/10.1016/j.dsr2.2016.12.011 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
141 |
container_start_page |
20 |
op_container_end_page |
30 |
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1765998958409154560 |