Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years
- Autores
- Carrozzo, David Ricardo; Musazzi, Simona; Lami, Andrea; Cordoba, Francisco Elizalde; Gonzalez Sagrario, Maria de Los Angeles
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Shallow lakes are vulnerable ecosystems impacted by human activities and climate change. The Cladocera occupy a central role in food webs and are an excellent paleoecological indicator of food web structure and trophic status. We conducted a paleolimnological study in Lake Blanca Chica (Argentina) to detect changes on the planktivory and herbivory regimes over the last 250 years. Generalized additive models were fitted to the time series of fish predation indicators (ephippial abundance and size, mucrone size, fish scales, and the planktivory index) and pheophorbide a concentration. The cladoceran assemblage changed from littoral-benthic to pelagic species dominance and zooplankton switched from large-bodied (Daphnia) to small-bodied grazers (Bosmina) ca. 1900 due to increased predation. The shift in planktivory regime (ca. 1920-1930), indicated by fish scales and the planktivory index, as well as herbivory (ca. 1920-1950), was triggered by eutrophication. Changes in planktivory affected the size structure of Bosmina, reducing its body size. This study describes the baseline for the lake as well as the profound changes in the composition and size structure of the zooplankton community due to increased predation and the shift in the planktivory regime. These findings will provide a reference status for future management strategies of this ecosystem.
Fil: Carrozzo, David Ricardo. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina
Fil: Musazzi, Simona. Consiglio Nazionale delle Ricerche; Italia. Water Research Institute; Italia
Fil: Lami, Andrea. Consiglio Nazionale delle Ricerche; Italia. Water Research Institute; Italia
Fil: Cordoba, Francisco Elizalde. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina
Fil: Gonzalez Sagrario, Maria de Los Angeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina - Materia
-
BOSMINA
CLADOCERA SUB-FOSSIL REMAINS
DAPHNIA
EPHIPPIA
FISH PREDATION
GRAZING
PHEOPHORBIDE A - 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:11336/128109
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
spelling |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 yearsCarrozzo, David RicardoMusazzi, SimonaLami, AndreaCordoba, Francisco ElizaldeGonzalez Sagrario, Maria de Los AngelesBOSMINACLADOCERA SUB-FOSSIL REMAINSDAPHNIAEPHIPPIAFISH PREDATIONGRAZINGPHEOPHORBIDE Ahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Shallow lakes are vulnerable ecosystems impacted by human activities and climate change. The Cladocera occupy a central role in food webs and are an excellent paleoecological indicator of food web structure and trophic status. We conducted a paleolimnological study in Lake Blanca Chica (Argentina) to detect changes on the planktivory and herbivory regimes over the last 250 years. Generalized additive models were fitted to the time series of fish predation indicators (ephippial abundance and size, mucrone size, fish scales, and the planktivory index) and pheophorbide a concentration. The cladoceran assemblage changed from littoral-benthic to pelagic species dominance and zooplankton switched from large-bodied (Daphnia) to small-bodied grazers (Bosmina) ca. 1900 due to increased predation. The shift in planktivory regime (ca. 1920-1930), indicated by fish scales and the planktivory index, as well as herbivory (ca. 1920-1950), was triggered by eutrophication. Changes in planktivory affected the size structure of Bosmina, reducing its body size. This study describes the baseline for the lake as well as the profound changes in the composition and size structure of the zooplankton community due to increased predation and the shift in the planktivory regime. These findings will provide a reference status for future management strategies of this ecosystem.Fil: Carrozzo, David Ricardo. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; ArgentinaFil: Musazzi, Simona. Consiglio Nazionale delle Ricerche; Italia. Water Research Institute; ItaliaFil: Lami, Andrea. Consiglio Nazionale delle Ricerche; Italia. Water Research Institute; ItaliaFil: Cordoba, Francisco Elizalde. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; ArgentinaFil: Gonzalez Sagrario, Maria de Los Angeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaMultidisciplinary Digital Publishing Institute2020-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128109Carrozzo, David Ricardo; Musazzi, Simona; Lami, Andrea; Cordoba, Francisco Elizalde; Gonzalez Sagrario, Maria de Los Angeles; Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years; Multidisciplinary Digital Publishing Institute; Water; 12; 2; 2-2020; 1-152073-4441CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3390/w12020597info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4441/12/2/597info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:16:03Zoai:ri.conicet.gov.ar:11336/128109instacron: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 10:16:03.473CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
title |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
spellingShingle |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years Carrozzo, David Ricardo BOSMINA CLADOCERA SUB-FOSSIL REMAINS DAPHNIA EPHIPPIA FISH PREDATION GRAZING PHEOPHORBIDE A |
title_short |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
title_full |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
title_fullStr |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
title_full_unstemmed |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
title_sort |
Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years |
dc.creator.none.fl_str_mv |
Carrozzo, David Ricardo Musazzi, Simona Lami, Andrea Cordoba, Francisco Elizalde Gonzalez Sagrario, Maria de Los Angeles |
author |
Carrozzo, David Ricardo |
author_facet |
Carrozzo, David Ricardo Musazzi, Simona Lami, Andrea Cordoba, Francisco Elizalde Gonzalez Sagrario, Maria de Los Angeles |
author_role |
author |
author2 |
Musazzi, Simona Lami, Andrea Cordoba, Francisco Elizalde Gonzalez Sagrario, Maria de Los Angeles |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
BOSMINA CLADOCERA SUB-FOSSIL REMAINS DAPHNIA EPHIPPIA FISH PREDATION GRAZING PHEOPHORBIDE A |
topic |
BOSMINA CLADOCERA SUB-FOSSIL REMAINS DAPHNIA EPHIPPIA FISH PREDATION GRAZING PHEOPHORBIDE A |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Shallow lakes are vulnerable ecosystems impacted by human activities and climate change. The Cladocera occupy a central role in food webs and are an excellent paleoecological indicator of food web structure and trophic status. We conducted a paleolimnological study in Lake Blanca Chica (Argentina) to detect changes on the planktivory and herbivory regimes over the last 250 years. Generalized additive models were fitted to the time series of fish predation indicators (ephippial abundance and size, mucrone size, fish scales, and the planktivory index) and pheophorbide a concentration. The cladoceran assemblage changed from littoral-benthic to pelagic species dominance and zooplankton switched from large-bodied (Daphnia) to small-bodied grazers (Bosmina) ca. 1900 due to increased predation. The shift in planktivory regime (ca. 1920-1930), indicated by fish scales and the planktivory index, as well as herbivory (ca. 1920-1950), was triggered by eutrophication. Changes in planktivory affected the size structure of Bosmina, reducing its body size. This study describes the baseline for the lake as well as the profound changes in the composition and size structure of the zooplankton community due to increased predation and the shift in the planktivory regime. These findings will provide a reference status for future management strategies of this ecosystem. Fil: Carrozzo, David Ricardo. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina Fil: Musazzi, Simona. Consiglio Nazionale delle Ricerche; Italia. Water Research Institute; Italia Fil: Lami, Andrea. Consiglio Nazionale delle Ricerche; Italia. Water Research Institute; Italia Fil: Cordoba, Francisco Elizalde. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina Fil: Gonzalez Sagrario, Maria de Los Angeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina |
description |
Shallow lakes are vulnerable ecosystems impacted by human activities and climate change. The Cladocera occupy a central role in food webs and are an excellent paleoecological indicator of food web structure and trophic status. We conducted a paleolimnological study in Lake Blanca Chica (Argentina) to detect changes on the planktivory and herbivory regimes over the last 250 years. Generalized additive models were fitted to the time series of fish predation indicators (ephippial abundance and size, mucrone size, fish scales, and the planktivory index) and pheophorbide a concentration. The cladoceran assemblage changed from littoral-benthic to pelagic species dominance and zooplankton switched from large-bodied (Daphnia) to small-bodied grazers (Bosmina) ca. 1900 due to increased predation. The shift in planktivory regime (ca. 1920-1930), indicated by fish scales and the planktivory index, as well as herbivory (ca. 1920-1950), was triggered by eutrophication. Changes in planktivory affected the size structure of Bosmina, reducing its body size. This study describes the baseline for the lake as well as the profound changes in the composition and size structure of the zooplankton community due to increased predation and the shift in the planktivory regime. These findings will provide a reference status for future management strategies of this ecosystem. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-02 |
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/11336/128109 Carrozzo, David Ricardo; Musazzi, Simona; Lami, Andrea; Cordoba, Francisco Elizalde; Gonzalez Sagrario, Maria de Los Angeles; Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years; Multidisciplinary Digital Publishing Institute; Water; 12; 2; 2-2020; 1-15 2073-4441 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/128109 |
identifier_str_mv |
Carrozzo, David Ricardo; Musazzi, Simona; Lami, Andrea; Cordoba, Francisco Elizalde; Gonzalez Sagrario, Maria de Los Angeles; Changes in planktivory and herbivory regimes in a shallow South American lake (Lake Blanca Chica, Argentina) over the last 250 years; Multidisciplinary Digital Publishing Institute; Water; 12; 2; 2-2020; 1-15 2073-4441 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.3390/w12020597 info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4441/12/2/597 |
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 |
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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 |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614101333966848 |
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13.070432 |