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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/229871
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:36:55Zoai: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:34982025-09-29 10:36:56.267CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |