Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean

Autores
Vélez Rubio, Gabriela Manuela; Prosdocimi, Laura; López Mendilaharsu, Milagros; Caraccio, Maria Noel; Fallabrino, Alejandro; La Casella, Erin L.; Dutton, Peter H.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Leatherback turtles migrate long distances between nesting beaches and distant foraging areas worldwide. This study analyzes the genetic diversity, life history stage, spatiotemporal distribution, and associated threats of a foraging aggregation in the Southwest Atlantic Ocean. A total of 242 leatherbacks stranded or bycaught by artisanal fisheries were recorded from 1997 to 2021 in Uruguay, with sizes ranging from 110.0 to 170.0 cm carapace lengths, indicating that the aggregation is composed of large juveniles and adults. Results of Bayesian mixed-stock analysis show that leatherbacks come primarily from the West African rookeries, based on mitochondrial DNA sequences obtained from 59 of the turtles representing seven haplotypes, including a novel one (Dc1.7). The main threat identified in the area is the fisheries bycatch but most of the carcasses observed were badly decomposed. There was significant seasonal and interannual variability in strandings that is likely associated with the availability of prey and the intensity of the fishing effort. Taken together, these findings reinforce the importance of these South American foraging areas for leatherbacks and the need to determine regional habitat use and migratory routes across the broader Atlantic region, in order to develop effective conservation measures to mitigate threats both at nesting beaches and foraging areas.
Fil: Vélez Rubio, Gabriela Manuela. Karumbe; Uruguay. Universidad de la República; Uruguay
Fil: Prosdocimi, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina. Karumbe; Uruguay
Fil: López Mendilaharsu, Milagros. Karumbe; Uruguay
Fil: Caraccio, Maria Noel. Karumbe; Uruguay
Fil: Fallabrino, Alejandro. Karumbe; Uruguay
Fil: La Casella, Erin L.. National Marine Fisheries Service; Estados Unidos
Fil: Dutton, Peter H.. National Marine Fisheries Service; Estados Unidos
Materia
Marine turtles
Threats
Genetic diversity
Río de la Plata estuary
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/229871
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/229871
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic OceanVélez Rubio, Gabriela ManuelaProsdocimi, LauraLópez Mendilaharsu, MilagrosCaraccio, Maria NoelFallabrino, AlejandroLa Casella, Erin L.Dutton, Peter H.Marine turtlesThreatsGenetic diversityRío de la Plata estuaryhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Leatherback turtles migrate long distances between nesting beaches and distant foraging areas worldwide. This study analyzes the genetic diversity, life history stage, spatiotemporal distribution, and associated threats of a foraging aggregation in the Southwest Atlantic Ocean. A total of 242 leatherbacks stranded or bycaught by artisanal fisheries were recorded from 1997 to 2021 in Uruguay, with sizes ranging from 110.0 to 170.0 cm carapace lengths, indicating that the aggregation is composed of large juveniles and adults. Results of Bayesian mixed-stock analysis show that leatherbacks come primarily from the West African rookeries, based on mitochondrial DNA sequences obtained from 59 of the turtles representing seven haplotypes, including a novel one (Dc1.7). The main threat identified in the area is the fisheries bycatch but most of the carcasses observed were badly decomposed. There was significant seasonal and interannual variability in strandings that is likely associated with the availability of prey and the intensity of the fishing effort. Taken together, these findings reinforce the importance of these South American foraging areas for leatherbacks and the need to determine regional habitat use and migratory routes across the broader Atlantic region, in order to develop effective conservation measures to mitigate threats both at nesting beaches and foraging areas.Fil: Vélez Rubio, Gabriela Manuela. Karumbe; Uruguay. Universidad de la República; UruguayFil: Prosdocimi, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina. Karumbe; UruguayFil: López Mendilaharsu, Milagros. Karumbe; UruguayFil: Caraccio, Maria Noel. Karumbe; UruguayFil: Fallabrino, Alejandro. Karumbe; UruguayFil: La Casella, Erin L.. National Marine Fisheries Service; Estados UnidosFil: Dutton, Peter H.. National Marine Fisheries Service; Estados UnidosMultidisciplinary Digital Publishing Institute2023-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/229871Vélez Rubio, Gabriela Manuela; Prosdocimi, Laura; López Mendilaharsu, Milagros; Caraccio, Maria Noel; Fallabrino, Alejandro; et al.; Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean; Multidisciplinary Digital Publishing Institute; Animals; 13; 8; 4-2023; 1-172076-2615CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-2615/13/8/1285info:eu-repo/semantics/altIdentifier/doi/10.3390/ani13081285info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:09:10Zoai:ri.conicet.gov.ar:11336/229871instacron: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:34982025-10-22 12:09:10.9CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
title Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
spellingShingle Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
Vélez Rubio, Gabriela Manuela
Marine turtles
Threats
Genetic diversity
Río de la Plata estuary
title_short Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
title_full Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
title_fullStr Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
title_full_unstemmed Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
title_sort Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean
dc.creator.none.fl_str_mv Vélez Rubio, Gabriela Manuela
Prosdocimi, Laura
López Mendilaharsu, Milagros
Caraccio, Maria Noel
Fallabrino, Alejandro
La Casella, Erin L.
Dutton, Peter H.
author Vélez Rubio, Gabriela Manuela
author_facet Vélez Rubio, Gabriela Manuela
Prosdocimi, Laura
López Mendilaharsu, Milagros
Caraccio, Maria Noel
Fallabrino, Alejandro
La Casella, Erin L.
Dutton, Peter H.
author_role author
author2 Prosdocimi, Laura
López Mendilaharsu, Milagros
Caraccio, Maria Noel
Fallabrino, Alejandro
La Casella, Erin L.
Dutton, Peter H.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Marine turtles
Threats
Genetic diversity
Río de la Plata estuary
topic Marine turtles
Threats
Genetic diversity
Río de la Plata estuary
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Leatherback turtles migrate long distances between nesting beaches and distant foraging areas worldwide. This study analyzes the genetic diversity, life history stage, spatiotemporal distribution, and associated threats of a foraging aggregation in the Southwest Atlantic Ocean. A total of 242 leatherbacks stranded or bycaught by artisanal fisheries were recorded from 1997 to 2021 in Uruguay, with sizes ranging from 110.0 to 170.0 cm carapace lengths, indicating that the aggregation is composed of large juveniles and adults. Results of Bayesian mixed-stock analysis show that leatherbacks come primarily from the West African rookeries, based on mitochondrial DNA sequences obtained from 59 of the turtles representing seven haplotypes, including a novel one (Dc1.7). The main threat identified in the area is the fisheries bycatch but most of the carcasses observed were badly decomposed. There was significant seasonal and interannual variability in strandings that is likely associated with the availability of prey and the intensity of the fishing effort. Taken together, these findings reinforce the importance of these South American foraging areas for leatherbacks and the need to determine regional habitat use and migratory routes across the broader Atlantic region, in order to develop effective conservation measures to mitigate threats both at nesting beaches and foraging areas.
Fil: Vélez Rubio, Gabriela Manuela. Karumbe; Uruguay. Universidad de la República; Uruguay
Fil: Prosdocimi, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". Estación Hidrobiológica de Puerto Quequén (sede Quequén); Argentina. Karumbe; Uruguay
Fil: López Mendilaharsu, Milagros. Karumbe; Uruguay
Fil: Caraccio, Maria Noel. Karumbe; Uruguay
Fil: Fallabrino, Alejandro. Karumbe; Uruguay
Fil: La Casella, Erin L.. National Marine Fisheries Service; Estados Unidos
Fil: Dutton, Peter H.. National Marine Fisheries Service; Estados Unidos
description Leatherback turtles migrate long distances between nesting beaches and distant foraging areas worldwide. This study analyzes the genetic diversity, life history stage, spatiotemporal distribution, and associated threats of a foraging aggregation in the Southwest Atlantic Ocean. A total of 242 leatherbacks stranded or bycaught by artisanal fisheries were recorded from 1997 to 2021 in Uruguay, with sizes ranging from 110.0 to 170.0 cm carapace lengths, indicating that the aggregation is composed of large juveniles and adults. Results of Bayesian mixed-stock analysis show that leatherbacks come primarily from the West African rookeries, based on mitochondrial DNA sequences obtained from 59 of the turtles representing seven haplotypes, including a novel one (Dc1.7). The main threat identified in the area is the fisheries bycatch but most of the carcasses observed were badly decomposed. There was significant seasonal and interannual variability in strandings that is likely associated with the availability of prey and the intensity of the fishing effort. Taken together, these findings reinforce the importance of these South American foraging areas for leatherbacks and the need to determine regional habitat use and migratory routes across the broader Atlantic region, in order to develop effective conservation measures to mitigate threats both at nesting beaches and foraging areas.
publishDate 2023
dc.date.none.fl_str_mv 2023-04
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/11336/229871
Vélez Rubio, Gabriela Manuela; Prosdocimi, Laura; López Mendilaharsu, Milagros; Caraccio, Maria Noel; Fallabrino, Alejandro; et al.; Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean; Multidisciplinary Digital Publishing Institute; Animals; 13; 8; 4-2023; 1-17
2076-2615
CONICET Digital
CONICET
url http://hdl.handle.net/11336/229871
identifier_str_mv Vélez Rubio, Gabriela Manuela; Prosdocimi, Laura; López Mendilaharsu, Milagros; Caraccio, Maria Noel; Fallabrino, Alejandro; et al.; Natal Origin and Spatiotemporal Distribution of Leatherback Turtle (Dermochelys coriacea) Strandings at a Foraging Hotspot in Temperate Waters of the Southwest Atlantic Ocean; Multidisciplinary Digital Publishing Institute; Animals; 13; 8; 4-2023; 1-17
2076-2615
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-2615/13/8/1285
info:eu-repo/semantics/altIdentifier/doi/10.3390/ani13081285
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
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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score 12.982451

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