Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis

Autores
Gabellone, Nestor Adrian; Claps, Maria Cristina; Ardohain, Diego Martin; Dippolito, A.; Bazzuri, Maria Elisa; Solari, Lía Cristina
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Short-time-scale limnological investigations during low-discharge conditions are appropriate for elucidating trophic relationships within the plankton. The grazing pressure of the zooplankters, dominated by r-strategists, was highly variable; and zooplankter-species replacement by those of different grazing efficiencies promoted changes in the phytoplankton structure and nanoplankton biomass. Plankton samples were taken thrice weekly at two sampling stations in the Salado River lower sector (Buenos Aires province, Argentina). Since almost one-third of the country´s agricultural and cattle productions come from the Salado-River basin, limnological research has been conducted there during recent decades. The objectives of this study were to determine the succesional changes in the zooplankton biomass and the relationship of that biomass to physical parameters and palatable phytoplankton species and to evaluate the observational time scale. To estimate grazing we employed three models and also the relationship between the zoo- and nanoplankton biomasses. The seasonal temperature and conductivity changes indicated three clearly different periods and were the main parameters driving the seasonal succession of the zooplankton. During the first period, the total zooplankton biomass was less than in the other two, with the tintinnids predominating. Later, the rotifers became prevalent, with a predomination by Brachionus plicatilis and Keratella tropica. A top-down effect on the total phytoplankton biomass by the zooplankton was not detected, though a diminution in the values for certain palatable algae was observed. The biomass of the nanoplankton species was significantly related to the total zooplankton biomass, with the highest rotifer values being associated with an exponential decrease in the nanoplankton biomass.
Fil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Claps, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Ardohain, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Dippolito, A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Bazzuri, Maria Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Solari, Lía Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Materia
Plankton
Biomass
Pampean Lowland River
Argentina
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:11336/22218
Acceder
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spelling Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysisGabellone, Nestor AdrianClaps, Maria CristinaArdohain, Diego MartinDippolito, A.Bazzuri, Maria ElisaSolari, Lía CristinaPlanktonBiomassPampean Lowland RiverArgentinahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Short-time-scale limnological investigations during low-discharge conditions are appropriate for elucidating trophic relationships within the plankton. The grazing pressure of the zooplankters, dominated by r-strategists, was highly variable; and zooplankter-species replacement by those of different grazing efficiencies promoted changes in the phytoplankton structure and nanoplankton biomass. Plankton samples were taken thrice weekly at two sampling stations in the Salado River lower sector (Buenos Aires province, Argentina). Since almost one-third of the country´s agricultural and cattle productions come from the Salado-River basin, limnological research has been conducted there during recent decades. The objectives of this study were to determine the succesional changes in the zooplankton biomass and the relationship of that biomass to physical parameters and palatable phytoplankton species and to evaluate the observational time scale. To estimate grazing we employed three models and also the relationship between the zoo- and nanoplankton biomasses. The seasonal temperature and conductivity changes indicated three clearly different periods and were the main parameters driving the seasonal succession of the zooplankton. During the first period, the total zooplankton biomass was less than in the other two, with the tintinnids predominating. Later, the rotifers became prevalent, with a predomination by Brachionus plicatilis and Keratella tropica. A top-down effect on the total phytoplankton biomass by the zooplankton was not detected, though a diminution in the values for certain palatable algae was observed. The biomass of the nanoplankton species was significantly related to the total zooplankton biomass, with the highest rotifer values being associated with an exponential decrease in the nanoplankton biomass.Fil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Claps, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Ardohain, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Dippolito, A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Bazzuri, Maria Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Solari, Lía Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaE Schweizerbartsche Verlags2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22218Gabellone, Nestor Adrian; Claps, Maria Cristina; Ardohain, Diego Martin; Dippolito, A.; Bazzuri, Maria Elisa; et al.; Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis; E Schweizerbartsche Verlags; Fundamental And Applied Limnology; 184; 4; 7-2014; 307-3271863-9135CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/schweiz/fal/2014/00000184/00000004/art00005info:eu-repo/semantics/altIdentifier/doi/10.1127/1863-9135/2014/0643info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:02Zoai:ri.conicet.gov.ar:11336/22218instacron: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 09:33:03.064CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
title Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
spellingShingle Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
Gabellone, Nestor Adrian
Plankton
Biomass
Pampean Lowland River
Argentina
title_short Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
title_full Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
title_fullStr Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
title_full_unstemmed Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
title_sort Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
dc.creator.none.fl_str_mv Gabellone, Nestor Adrian
Claps, Maria Cristina
Ardohain, Diego Martin
Dippolito, A.
Bazzuri, Maria Elisa
Solari, Lía Cristina
author Gabellone, Nestor Adrian
author_facet Gabellone, Nestor Adrian
Claps, Maria Cristina
Ardohain, Diego Martin
Dippolito, A.
Bazzuri, Maria Elisa
Solari, Lía Cristina
author_role author
author2 Claps, Maria Cristina
Ardohain, Diego Martin
Dippolito, A.
Bazzuri, Maria Elisa
Solari, Lía Cristina
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Plankton
Biomass
Pampean Lowland River
Argentina
topic Plankton
Biomass
Pampean Lowland River
Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Short-time-scale limnological investigations during low-discharge conditions are appropriate for elucidating trophic relationships within the plankton. The grazing pressure of the zooplankters, dominated by r-strategists, was highly variable; and zooplankter-species replacement by those of different grazing efficiencies promoted changes in the phytoplankton structure and nanoplankton biomass. Plankton samples were taken thrice weekly at two sampling stations in the Salado River lower sector (Buenos Aires province, Argentina). Since almost one-third of the country´s agricultural and cattle productions come from the Salado-River basin, limnological research has been conducted there during recent decades. The objectives of this study were to determine the succesional changes in the zooplankton biomass and the relationship of that biomass to physical parameters and palatable phytoplankton species and to evaluate the observational time scale. To estimate grazing we employed three models and also the relationship between the zoo- and nanoplankton biomasses. The seasonal temperature and conductivity changes indicated three clearly different periods and were the main parameters driving the seasonal succession of the zooplankton. During the first period, the total zooplankton biomass was less than in the other two, with the tintinnids predominating. Later, the rotifers became prevalent, with a predomination by Brachionus plicatilis and Keratella tropica. A top-down effect on the total phytoplankton biomass by the zooplankton was not detected, though a diminution in the values for certain palatable algae was observed. The biomass of the nanoplankton species was significantly related to the total zooplankton biomass, with the highest rotifer values being associated with an exponential decrease in the nanoplankton biomass.
Fil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Claps, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Ardohain, Diego Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Dippolito, A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Bazzuri, Maria Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina
Fil: Solari, Lía Cristina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
description Short-time-scale limnological investigations during low-discharge conditions are appropriate for elucidating trophic relationships within the plankton. The grazing pressure of the zooplankters, dominated by r-strategists, was highly variable; and zooplankter-species replacement by those of different grazing efficiencies promoted changes in the phytoplankton structure and nanoplankton biomass. Plankton samples were taken thrice weekly at two sampling stations in the Salado River lower sector (Buenos Aires province, Argentina). Since almost one-third of the country´s agricultural and cattle productions come from the Salado-River basin, limnological research has been conducted there during recent decades. The objectives of this study were to determine the succesional changes in the zooplankton biomass and the relationship of that biomass to physical parameters and palatable phytoplankton species and to evaluate the observational time scale. To estimate grazing we employed three models and also the relationship between the zoo- and nanoplankton biomasses. The seasonal temperature and conductivity changes indicated three clearly different periods and were the main parameters driving the seasonal succession of the zooplankton. During the first period, the total zooplankton biomass was less than in the other two, with the tintinnids predominating. Later, the rotifers became prevalent, with a predomination by Brachionus plicatilis and Keratella tropica. A top-down effect on the total phytoplankton biomass by the zooplankton was not detected, though a diminution in the values for certain palatable algae was observed. The biomass of the nanoplankton species was significantly related to the total zooplankton biomass, with the highest rotifer values being associated with an exponential decrease in the nanoplankton biomass.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/22218
Gabellone, Nestor Adrian; Claps, Maria Cristina; Ardohain, Diego Martin; Dippolito, A.; Bazzuri, Maria Elisa; et al.; Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis; E Schweizerbartsche Verlags; Fundamental And Applied Limnology; 184; 4; 7-2014; 307-327
1863-9135
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22218
identifier_str_mv Gabellone, Nestor Adrian; Claps, Maria Cristina; Ardohain, Diego Martin; Dippolito, A.; Bazzuri, Maria Elisa; et al.; Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis; E Schweizerbartsche Verlags; Fundamental And Applied Limnology; 184; 4; 7-2014; 307-327
1863-9135
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.ingentaconnect.com/content/schweiz/fal/2014/00000184/00000004/art00005
info:eu-repo/semantics/altIdentifier/doi/10.1127/1863-9135/2014/0643
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
dc.publisher.none.fl_str_mv E Schweizerbartsche Verlags
publisher.none.fl_str_mv E Schweizerbartsche Verlags
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 13.070432

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