Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina

Autores
Laprida, Cecilia; Plastani, María Sofía; Irurzun, Maria Alicia; Gogorza, Claudia Susana; Navas, Ana; Valero Garces, B.; Sinito, Ana Maria
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Changes in trophic status of the shallow Lake La Brava (southeastern Pampa plain of Argentina) are evaluated based on geochemical, biological and sedimentological data. Based on a conceptual framework, we propose that the lake level defines the water column mixing conditions, affecting internal lake processes and determining the transparency of lake water. The shift between alternative states is reconstructed for the last ~4800 years. Four main lake stages has been recognized, although short term shifts characterize all stages. A turbid phytoplankton-dominated state prevailed between ~4700-4500 cal yr BP. Drier conditions and low lake levels pushed the lake to a clear state until 2000 cal yr BP. Afterwards the lake switched back to a turbid state, and these conditions persisted until ~200 cal yr BP. In the last 200 years, the lake switched back and forth between a clear and a turbid state anew, the latter represents the modern conditions of the lake since ~1950 AD. These shifts can be attributed mainly to climatic drivers.
Fil: Laprida, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. Instituto de Estudios Andinos Don Pablo Groeber; Argentina
Fil: Plastani, María Sofía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geologicas. Instituto de Estudios Andinos Don Pablo Groeber; Argentina
Fil: Irurzun, Maria Alicia. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Navas, Ana. Instituto Experimental Aula Dei; España
Fil: Valero Garces, B.. Instituto Pirenaico de Ecología; España
Fil: Sinito, Ana Maria. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Materia
Ostracodos
Geoquimica
Evolucion ambiental
Paleoclima
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4680
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4680
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, ArgentinaLaprida, CeciliaPlastani, María SofíaIrurzun, Maria AliciaGogorza, Claudia SusanaNavas, AnaValero Garces, B.Sinito, Ana MariaOstracodosGeoquimicaEvolucion ambientalPaleoclimahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Changes in trophic status of the shallow Lake La Brava (southeastern Pampa plain of Argentina) are evaluated based on geochemical, biological and sedimentological data. Based on a conceptual framework, we propose that the lake level defines the water column mixing conditions, affecting internal lake processes and determining the transparency of lake water. The shift between alternative states is reconstructed for the last ~4800 years. Four main lake stages has been recognized, although short term shifts characterize all stages. A turbid phytoplankton-dominated state prevailed between ~4700-4500 cal yr BP. Drier conditions and low lake levels pushed the lake to a clear state until 2000 cal yr BP. Afterwards the lake switched back to a turbid state, and these conditions persisted until ~200 cal yr BP. In the last 200 years, the lake switched back and forth between a clear and a turbid state anew, the latter represents the modern conditions of the lake since ~1950 AD. These shifts can be attributed mainly to climatic drivers.Fil: Laprida, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. Instituto de Estudios Andinos Don Pablo Groeber; ArgentinaFil: Plastani, María Sofía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geologicas. Instituto de Estudios Andinos Don Pablo Groeber; ArgentinaFil: Irurzun, Maria Alicia. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Navas, Ana. Instituto Experimental Aula Dei; EspañaFil: Valero Garces, B.. Instituto Pirenaico de Ecología; EspañaFil: Sinito, Ana Maria. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaPAGEPress2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4680Laprida, Cecilia; Plastani, María Sofía; Irurzun, Maria Alicia; Gogorza, Claudia Susana; Navas, Ana; et al.; Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina; PAGEPress; Journal Of Limnology; 73; 2; 6-2014; 325-3391129-57671723-8633enginfo:eu-repo/semantics/altIdentifier/url/http://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2014.830info:eu-repo/semantics/altIdentifier/doi/10.4081/jlimnol.2014.830info:eu-repo/semantics/altIdentifier/issn/1129-5767info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:48:04Zoai:ri.conicet.gov.ar:11336/4680instacron: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:34982026-08-25 14:48:04.708CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
title Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
spellingShingle Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
Laprida, Cecilia
Ostracodos
Geoquimica
Evolucion ambiental
Paleoclima
title_short Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
title_full Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
title_fullStr Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
title_full_unstemmed Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
title_sort Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina
dc.creator.none.fl_str_mv Laprida, Cecilia
Plastani, María Sofía
Irurzun, Maria Alicia
Gogorza, Claudia Susana
Navas, Ana
Valero Garces, B.
Sinito, Ana Maria
author Laprida, Cecilia
author_facet Laprida, Cecilia
Plastani, María Sofía
Irurzun, Maria Alicia
Gogorza, Claudia Susana
Navas, Ana
Valero Garces, B.
Sinito, Ana Maria
author_role author
author2 Plastani, María Sofía
Irurzun, Maria Alicia
Gogorza, Claudia Susana
Navas, Ana
Valero Garces, B.
Sinito, Ana Maria
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ostracodos
Geoquimica
Evolucion ambiental
Paleoclima
topic Ostracodos
Geoquimica
Evolucion ambiental
Paleoclima
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Changes in trophic status of the shallow Lake La Brava (southeastern Pampa plain of Argentina) are evaluated based on geochemical, biological and sedimentological data. Based on a conceptual framework, we propose that the lake level defines the water column mixing conditions, affecting internal lake processes and determining the transparency of lake water. The shift between alternative states is reconstructed for the last ~4800 years. Four main lake stages has been recognized, although short term shifts characterize all stages. A turbid phytoplankton-dominated state prevailed between ~4700-4500 cal yr BP. Drier conditions and low lake levels pushed the lake to a clear state until 2000 cal yr BP. Afterwards the lake switched back to a turbid state, and these conditions persisted until ~200 cal yr BP. In the last 200 years, the lake switched back and forth between a clear and a turbid state anew, the latter represents the modern conditions of the lake since ~1950 AD. These shifts can be attributed mainly to climatic drivers.
Fil: Laprida, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas. Instituto de Estudios Andinos Don Pablo Groeber; Argentina
Fil: Plastani, María Sofía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geologicas. Instituto de Estudios Andinos Don Pablo Groeber; Argentina
Fil: Irurzun, Maria Alicia. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Gogorza, Claudia Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Navas, Ana. Instituto Experimental Aula Dei; España
Fil: Valero Garces, B.. Instituto Pirenaico de Ecología; España
Fil: Sinito, Ana Maria. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
description Changes in trophic status of the shallow Lake La Brava (southeastern Pampa plain of Argentina) are evaluated based on geochemical, biological and sedimentological data. Based on a conceptual framework, we propose that the lake level defines the water column mixing conditions, affecting internal lake processes and determining the transparency of lake water. The shift between alternative states is reconstructed for the last ~4800 years. Four main lake stages has been recognized, although short term shifts characterize all stages. A turbid phytoplankton-dominated state prevailed between ~4700-4500 cal yr BP. Drier conditions and low lake levels pushed the lake to a clear state until 2000 cal yr BP. Afterwards the lake switched back to a turbid state, and these conditions persisted until ~200 cal yr BP. In the last 200 years, the lake switched back and forth between a clear and a turbid state anew, the latter represents the modern conditions of the lake since ~1950 AD. These shifts can be attributed mainly to climatic drivers.
publishDate 2014
dc.date.none.fl_str_mv 2014-06
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/11336/4680
Laprida, Cecilia; Plastani, María Sofía; Irurzun, Maria Alicia; Gogorza, Claudia Susana; Navas, Ana; et al.; Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina; PAGEPress; Journal Of Limnology; 73; 2; 6-2014; 325-339
1129-5767
1723-8633
url http://hdl.handle.net/11336/4680
identifier_str_mv Laprida, Cecilia; Plastani, María Sofía; Irurzun, Maria Alicia; Gogorza, Claudia Susana; Navas, Ana; et al.; Mid-Late Holocene Climate and Trophic States in a Shallow Lake from the Southern Pampa Plain, Argentina; PAGEPress; Journal Of Limnology; 73; 2; 6-2014; 325-339
1129-5767
1723-8633
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2014.830
info:eu-repo/semantics/altIdentifier/doi/10.4081/jlimnol.2014.830
info:eu-repo/semantics/altIdentifier/issn/1129-5767
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv PAGEPress
publisher.none.fl_str_mv PAGEPress
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 13.24418

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