Top marine predators track Lagrangian coherent structures

6 pages, 4 figures, 1 table.-- PDF ArXiv pre-print: http://arxiv.org/abs/0904.1959

Detalles Bibliográficos
Autores: Tew Kai, Emilie, Rossi, Vincent, Sudre, Joel, Weimerskirch, Henri, López, Cristóbal, Hernández-García, Emilio, Marsac, Francisc, Garçon, Véronique
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/25519
Acceso en línea:http://hdl.handle.net/10261/25519
Access Level:acceso abierto
Palabra clave:Finite-size Lyapunov exponents
Frigatebird
Mozambique Channel
Submesoscale
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spelling Top marine predators track Lagrangian coherent structuresTew Kai, EmilieRossi, VincentSudre, JoelWeimerskirch, HenriLópez, CristóbalHernández-García, EmilioMarsac, FranciscGarçon, VéroniqueFinite-size Lyapunov exponentsFrigatebirdMozambique ChannelSubmesoscale6 pages, 4 figures, 1 table.-- PDF ArXiv pre-print: http://arxiv.org/abs/0904.1959Meso- and submesoscales (fronts, eddies, filaments) in surface ocean flow have a crucial influence on marine ecosystems. Their dynamics partly control the foraging behaviour and the displacement of marine top predators (tuna, birds, turtles, and cetaceans). In this work we focus on the role of submesoscale structures in the Mozambique Channel on the distribution of a marine predator, the Great Frigatebird. Using a newly developed dynamical concept, namely the Finite-Size Lyapunov Exponent (FSLE), we have identified Lagrangian coherent structures (LCSs) present in the surface flow in the Channel over a 2-month observation period (August and September 2003). By comparing seabird satellite positions with LCSs locations, we demonstrate that frigatebirds track precisely these structures in the Mozambique Channel, providing the first evidence that a top predator is able to track these FSLE ridges to locate food patches. After comparing bird positions during long and short trips, and different parts of these trips, we propose several hypotheses to understand how frigatebirds can follow these LCSs. The birds might use visual and/or olfactory cues and/or atmospheric current changes over the structures to move along these biological corridors. The birds being often associated to tuna schools around foraging areas, a thorough comprehension of their foraging behaviour and movement during the breeding season is crucial not only to seabird ecology but also to an appropriate ecosystemic approach of fisheries in the channel.A Ph.D. fellowship for E.T.K was provided by the InstitutdeRecherche pour le Développement and the University Pierre and Marie Curie. Ph.D. financial support for V.R was provided by the Direction Ge´ne´ rale de l’Armement. The Laboratoire d’Etudes en Géophysique et Océanographie Spatiale contribution is supported by Centre National d’Etudes Spatiales funding. The Instituto de Física Interdisciplinar y Sistemas Complejos contribution is supported by Ministerio de Ciencia e Innovación and le Fonds Européen de Développement Régional through project FISICOS (FIS2007–60327), and by Consejo Superior de Investigaciones Cientificas through the Intramural Frontier Projects OCEANTECH. H.W.’s contribution was supported by the REMIGE project funded by Agence Nationale de la Recherche (ANR 2005 Biodiv-011).Peer reviewedNational Academy of Sciences (U.S.)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201020102009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65012373 bytes895726 bytes185621 bytestext/plainapplication/pdfapplication/pdfhttp://hdl.handle.net/10261/25519reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1073/pnas.0811034106Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/255192026-05-22T06:33:51Z
dc.title.none.fl_str_mv Top marine predators track Lagrangian coherent structures
title Top marine predators track Lagrangian coherent structures
spellingShingle Top marine predators track Lagrangian coherent structures
Tew Kai, Emilie
Finite-size Lyapunov exponents
Frigatebird
Mozambique Channel
Submesoscale
title_short Top marine predators track Lagrangian coherent structures
title_full Top marine predators track Lagrangian coherent structures
title_fullStr Top marine predators track Lagrangian coherent structures
title_full_unstemmed Top marine predators track Lagrangian coherent structures
title_sort Top marine predators track Lagrangian coherent structures
dc.creator.none.fl_str_mv Tew Kai, Emilie
Rossi, Vincent
Sudre, Joel
Weimerskirch, Henri
López, Cristóbal
Hernández-García, Emilio
Marsac, Francisc
Garçon, Véronique
author Tew Kai, Emilie
author_facet Tew Kai, Emilie
Rossi, Vincent
Sudre, Joel
Weimerskirch, Henri
López, Cristóbal
Hernández-García, Emilio
Marsac, Francisc
Garçon, Véronique
author_role author
author2 Rossi, Vincent
Sudre, Joel
Weimerskirch, Henri
López, Cristóbal
Hernández-García, Emilio
Marsac, Francisc
Garçon, Véronique
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Finite-size Lyapunov exponents
Frigatebird
Mozambique Channel
Submesoscale
topic Finite-size Lyapunov exponents
Frigatebird
Mozambique Channel
Submesoscale
description 6 pages, 4 figures, 1 table.-- PDF ArXiv pre-print: http://arxiv.org/abs/0904.1959
publishDate 2009
dc.date.none.fl_str_mv 2009
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/25519
url http://hdl.handle.net/10261/25519
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1073/pnas.0811034106
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 2373 bytes
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application/pdf
dc.publisher.none.fl_str_mv National Academy of Sciences (U.S.)
publisher.none.fl_str_mv National Academy of Sciences (U.S.)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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