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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/128109
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/128109
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str 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 Técnicas2025-10-22T11:46:12Zoai: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:34982025-10-22 11:46:12.232CONICET 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
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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