Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina

Autores
McGovern, K.A.; Rodriguez, Diego Horacio; Lewis, Mirtha Noemi; Eder, Elena Beatriz; Piola, Alberto Ricardo; Davis, R.W.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Research on marine mammal habitat-associations often uses satellite remote sensing of sea surface temperature, chlorophyll concentration, and sea surface height to map mesoscale features, which may indicate areas of enhanced productivity and prey availability. However, for species that feed at depths >400 m, the increased productivity associated with mesoscale features observed near the surface may have little or no immediate effect on habitat-associations at depth. As a result, previous studies have found a weak correlation between mesoscale features and the movements of marine mammals. The advantage of biologging is that hydrographic variables are recorded in situ and at foraging depths using animal-borne instruments with sensors for temperature, conductivity (salinity), and dissolved oxygen. The goal of this study was to characterize the habitat-associations of female southern elephant seals (SES) from Península Valdés, Argentina during the post-breeding foraging trip. Although female SES exhibited significant habitat-associations with sea surface height anomaly and chlorophyll concentrations, the presence or absence of eddies was not predictive of foraging behavior, and the majority of foraging dives (74%) and prey encounters (77%) occurred in the absence of eddies. The strongest habitat-association was with deep (>500 m) and cold (3.73 ± 1.29 °C) subantarctic water, primarily during foraging dives from dusk to dawn. Female SES made most of their foraging dives (68%, mean maximum depth of 539 ± 226 m) and had the most prey encounters (67%) in Antarctic Intermediate Water (AAIW), which is formed near the Subantarctic Front on the northern flank of the Antarctic Circumpolar Current. Our results suggest that AAIW is the principal foraging habitat of female SES from Península Valdés, which may not be directly associated with near-surface mesoscale features. Future research on the habitat-associations for SES and other deep-diving marine mammals should focus on indices of foraging success and the hydrographic features of water masses at foraging depths, not mesoscale features observed near the surface.
Fil: McGovern, K.A.. Texas A&M University; Estados Unidos
Fil: Rodriguez, Diego Horacio. Universidad Nacional de Mar del Plata, Facultad de Ciencias Exactas y Naturales, Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Lewis, Mirtha Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Eder, Elena Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Piola, Alberto Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Davis, R.W.. Texas A&M University; Estados Unidos
Materia
ANTARCTIC INTERMEDIATE WATER
DIVING ELEPHANT SEAL
FORAGING HABITAT-ASSOCIATION
PENÍNSULA VALDÉS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/202801

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spelling Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, ArgentinaMcGovern, K.A.Rodriguez, Diego HoracioLewis, Mirtha NoemiEder, Elena BeatrizPiola, Alberto RicardoDavis, R.W.ANTARCTIC INTERMEDIATE WATERDIVING ELEPHANT SEALFORAGING HABITAT-ASSOCIATIONPENÍNSULA VALDÉShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Research on marine mammal habitat-associations often uses satellite remote sensing of sea surface temperature, chlorophyll concentration, and sea surface height to map mesoscale features, which may indicate areas of enhanced productivity and prey availability. However, for species that feed at depths >400 m, the increased productivity associated with mesoscale features observed near the surface may have little or no immediate effect on habitat-associations at depth. As a result, previous studies have found a weak correlation between mesoscale features and the movements of marine mammals. The advantage of biologging is that hydrographic variables are recorded in situ and at foraging depths using animal-borne instruments with sensors for temperature, conductivity (salinity), and dissolved oxygen. The goal of this study was to characterize the habitat-associations of female southern elephant seals (SES) from Península Valdés, Argentina during the post-breeding foraging trip. Although female SES exhibited significant habitat-associations with sea surface height anomaly and chlorophyll concentrations, the presence or absence of eddies was not predictive of foraging behavior, and the majority of foraging dives (74%) and prey encounters (77%) occurred in the absence of eddies. The strongest habitat-association was with deep (>500 m) and cold (3.73 ± 1.29 °C) subantarctic water, primarily during foraging dives from dusk to dawn. Female SES made most of their foraging dives (68%, mean maximum depth of 539 ± 226 m) and had the most prey encounters (67%) in Antarctic Intermediate Water (AAIW), which is formed near the Subantarctic Front on the northern flank of the Antarctic Circumpolar Current. Our results suggest that AAIW is the principal foraging habitat of female SES from Península Valdés, which may not be directly associated with near-surface mesoscale features. Future research on the habitat-associations for SES and other deep-diving marine mammals should focus on indices of foraging success and the hydrographic features of water masses at foraging depths, not mesoscale features observed near the surface.Fil: McGovern, K.A.. Texas A&M University; Estados UnidosFil: Rodriguez, Diego Horacio. Universidad Nacional de Mar del Plata, Facultad de Ciencias Exactas y Naturales, Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Lewis, Mirtha Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Eder, Elena Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Piola, Alberto Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Davis, R.W.. Texas A&M University; Estados UnidosPergamon-Elsevier Science Ltd2022-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/202801McGovern, K.A.; Rodriguez, Diego Horacio; Lewis, Mirtha Noemi; Eder, Elena Beatriz; Piola, Alberto Ricardo; et al.; Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina; Pergamon-Elsevier Science Ltd; Deep Sea Research Part I: Oceanographic Research Papers; 185; 103789; 5-2022; 1-130967-0637CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2022.103789info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0967063722001029info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:47Zoai:ri.conicet.gov.ar:11336/202801instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:47.922CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
title Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
spellingShingle Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
McGovern, K.A.
ANTARCTIC INTERMEDIATE WATER
DIVING ELEPHANT SEAL
FORAGING HABITAT-ASSOCIATION
PENÍNSULA VALDÉS
title_short Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
title_full Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
title_fullStr Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
title_full_unstemmed Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
title_sort Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
dc.creator.none.fl_str_mv McGovern, K.A.
Rodriguez, Diego Horacio
Lewis, Mirtha Noemi
Eder, Elena Beatriz
Piola, Alberto Ricardo
Davis, R.W.
author McGovern, K.A.
author_facet McGovern, K.A.
Rodriguez, Diego Horacio
Lewis, Mirtha Noemi
Eder, Elena Beatriz
Piola, Alberto Ricardo
Davis, R.W.
author_role author
author2 Rodriguez, Diego Horacio
Lewis, Mirtha Noemi
Eder, Elena Beatriz
Piola, Alberto Ricardo
Davis, R.W.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv ANTARCTIC INTERMEDIATE WATER
DIVING ELEPHANT SEAL
FORAGING HABITAT-ASSOCIATION
PENÍNSULA VALDÉS
topic ANTARCTIC INTERMEDIATE WATER
DIVING ELEPHANT SEAL
FORAGING HABITAT-ASSOCIATION
PENÍNSULA VALDÉS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Research on marine mammal habitat-associations often uses satellite remote sensing of sea surface temperature, chlorophyll concentration, and sea surface height to map mesoscale features, which may indicate areas of enhanced productivity and prey availability. However, for species that feed at depths >400 m, the increased productivity associated with mesoscale features observed near the surface may have little or no immediate effect on habitat-associations at depth. As a result, previous studies have found a weak correlation between mesoscale features and the movements of marine mammals. The advantage of biologging is that hydrographic variables are recorded in situ and at foraging depths using animal-borne instruments with sensors for temperature, conductivity (salinity), and dissolved oxygen. The goal of this study was to characterize the habitat-associations of female southern elephant seals (SES) from Península Valdés, Argentina during the post-breeding foraging trip. Although female SES exhibited significant habitat-associations with sea surface height anomaly and chlorophyll concentrations, the presence or absence of eddies was not predictive of foraging behavior, and the majority of foraging dives (74%) and prey encounters (77%) occurred in the absence of eddies. The strongest habitat-association was with deep (>500 m) and cold (3.73 ± 1.29 °C) subantarctic water, primarily during foraging dives from dusk to dawn. Female SES made most of their foraging dives (68%, mean maximum depth of 539 ± 226 m) and had the most prey encounters (67%) in Antarctic Intermediate Water (AAIW), which is formed near the Subantarctic Front on the northern flank of the Antarctic Circumpolar Current. Our results suggest that AAIW is the principal foraging habitat of female SES from Península Valdés, which may not be directly associated with near-surface mesoscale features. Future research on the habitat-associations for SES and other deep-diving marine mammals should focus on indices of foraging success and the hydrographic features of water masses at foraging depths, not mesoscale features observed near the surface.
Fil: McGovern, K.A.. Texas A&M University; Estados Unidos
Fil: Rodriguez, Diego Horacio. Universidad Nacional de Mar del Plata, Facultad de Ciencias Exactas y Naturales, Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Lewis, Mirtha Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Eder, Elena Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Piola, Alberto Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Instituto Franco-Argentino sobre Estudios del Clima y sus Impactos; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Davis, R.W.. Texas A&M University; Estados Unidos
description Research on marine mammal habitat-associations often uses satellite remote sensing of sea surface temperature, chlorophyll concentration, and sea surface height to map mesoscale features, which may indicate areas of enhanced productivity and prey availability. However, for species that feed at depths >400 m, the increased productivity associated with mesoscale features observed near the surface may have little or no immediate effect on habitat-associations at depth. As a result, previous studies have found a weak correlation between mesoscale features and the movements of marine mammals. The advantage of biologging is that hydrographic variables are recorded in situ and at foraging depths using animal-borne instruments with sensors for temperature, conductivity (salinity), and dissolved oxygen. The goal of this study was to characterize the habitat-associations of female southern elephant seals (SES) from Península Valdés, Argentina during the post-breeding foraging trip. Although female SES exhibited significant habitat-associations with sea surface height anomaly and chlorophyll concentrations, the presence or absence of eddies was not predictive of foraging behavior, and the majority of foraging dives (74%) and prey encounters (77%) occurred in the absence of eddies. The strongest habitat-association was with deep (>500 m) and cold (3.73 ± 1.29 °C) subantarctic water, primarily during foraging dives from dusk to dawn. Female SES made most of their foraging dives (68%, mean maximum depth of 539 ± 226 m) and had the most prey encounters (67%) in Antarctic Intermediate Water (AAIW), which is formed near the Subantarctic Front on the northern flank of the Antarctic Circumpolar Current. Our results suggest that AAIW is the principal foraging habitat of female SES from Península Valdés, which may not be directly associated with near-surface mesoscale features. Future research on the habitat-associations for SES and other deep-diving marine mammals should focus on indices of foraging success and the hydrographic features of water masses at foraging depths, not mesoscale features observed near the surface.
publishDate 2022
dc.date.none.fl_str_mv 2022-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/202801
McGovern, K.A.; Rodriguez, Diego Horacio; Lewis, Mirtha Noemi; Eder, Elena Beatriz; Piola, Alberto Ricardo; et al.; Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina; Pergamon-Elsevier Science Ltd; Deep Sea Research Part I: Oceanographic Research Papers; 185; 103789; 5-2022; 1-13
0967-0637
CONICET Digital
CONICET
url http://hdl.handle.net/11336/202801
identifier_str_mv McGovern, K.A.; Rodriguez, Diego Horacio; Lewis, Mirtha Noemi; Eder, Elena Beatriz; Piola, Alberto Ricardo; et al.; Habitat associations of post-breeding female southern elephant seals (Mirounga leonina) from Península Valdés, Argentina; Pergamon-Elsevier Science Ltd; Deep Sea Research Part I: Oceanographic Research Papers; 185; 103789; 5-2022; 1-13
0967-0637
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2022.103789
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0967063722001029
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
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dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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