Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»

Autores
Ruiz, Gonzalo Carlos; Solari, Lía Cristina; Gabellone, Nestor Adrian
Año de publicación
2005
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Shallow lakes can present two alternative stable states with or without submerged macrophytes that produce significant structural changes in plankton and nutrient dynamics. The aim of this study is to analyse the changes in the phytoplankton structure related to different conditions of zooplankton predation in an arreic lake. Four cylindrical pvc enclosures of 700 L of capacity were placed in the lake, two of them in free-vegetation waters and the other two in an area dominated by emerged and submerged macrophytes (Scirpus californicus and Potamogeton striatus respectively) with and without predation conditions on the grazer zooplankton. Samples were taken every eight hours for three days during the 2003/2004 summer period. Temperature, pH, dissolved oxygen, conductivity, turbidity and transparency were measured in situ. Water samples were taken to determine the different phosphorus and nitrogen forms and to analyse the phytoplankton. In all treatments, the conductivity oscillated between 1.520 and 1.550 μS.cm -1. Turbidity varied from 48 to 54 NTU and the pH was slightly alkaline (8,48-8,81). Chlorophytes and cyanophytes increased in free-vegetation-water enclosures with fish while no changes were found in the vegetated area. Preliminarily, we can say that the predation effect on zooplankton was more important in the enclosure placed in free-vegetation waters with fish. It was there that the biggest densities of eatable cholorophyte algae (Crucigenia quadrata, Dictyosphaerium pulchellum var. minor, Chlamydomonas sp. and Oocystis parva) were found towards the end of the experiment.
Fil: Ruiz, Gonzalo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Solari, Lía Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Materia
phytoplankton, enclosures, trophic relations, arreic lake
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:11336/65937
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/65937
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»Ruiz, Gonzalo CarlosSolari, Lía CristinaGabellone, Nestor Adrianphytoplankton, enclosures, trophic relations, arreic lakehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Shallow lakes can present two alternative stable states with or without submerged macrophytes that produce significant structural changes in plankton and nutrient dynamics. The aim of this study is to analyse the changes in the phytoplankton structure related to different conditions of zooplankton predation in an arreic lake. Four cylindrical pvc enclosures of 700 L of capacity were placed in the lake, two of them in free-vegetation waters and the other two in an area dominated by emerged and submerged macrophytes (Scirpus californicus and Potamogeton striatus respectively) with and without predation conditions on the grazer zooplankton. Samples were taken every eight hours for three days during the 2003/2004 summer period. Temperature, pH, dissolved oxygen, conductivity, turbidity and transparency were measured in situ. Water samples were taken to determine the different phosphorus and nitrogen forms and to analyse the phytoplankton. In all treatments, the conductivity oscillated between 1.520 and 1.550 μS.cm -1. Turbidity varied from 48 to 54 NTU and the pH was slightly alkaline (8,48-8,81). Chlorophytes and cyanophytes increased in free-vegetation-water enclosures with fish while no changes were found in the vegetated area. Preliminarily, we can say that the predation effect on zooplankton was more important in the enclosure placed in free-vegetation waters with fish. It was there that the biggest densities of eatable cholorophyte algae (Crucigenia quadrata, Dictyosphaerium pulchellum var. minor, Chlamydomonas sp. and Oocystis parva) were found towards the end of the experiment.Fil: Ruiz, Gonzalo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaFil: Solari, Lía Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaFil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaInstituto de Limnología Dr. Raúl Ringuelet2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/65937Ruiz, Gonzalo Carlos; Solari, Lía Cristina; Gabellone, Nestor Adrian; Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»; Instituto de Limnología Dr. Raúl Ringuelet; Biología Acuática; 22; 12-2005; 231-2370326-1638CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://www.bacuatica.org/BA_ant/ba22.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:04:09Zoai:ri.conicet.gov.ar:11336/65937instacron: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:34982025-09-10 13:04:09.954CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
title Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
spellingShingle Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
Ruiz, Gonzalo Carlos
phytoplankton, enclosures, trophic relations, arreic lake
title_short Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
title_full Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
title_fullStr Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
title_full_unstemmed Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
title_sort Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»
dc.creator.none.fl_str_mv Ruiz, Gonzalo Carlos
Solari, Lía Cristina
Gabellone, Nestor Adrian
author Ruiz, Gonzalo Carlos
author_facet Ruiz, Gonzalo Carlos
Solari, Lía Cristina
Gabellone, Nestor Adrian
author_role author
author2 Solari, Lía Cristina
Gabellone, Nestor Adrian
author2_role author
author
dc.subject.none.fl_str_mv phytoplankton, enclosures, trophic relations, arreic lake
topic phytoplankton, enclosures, trophic relations, arreic lake
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Shallow lakes can present two alternative stable states with or without submerged macrophytes that produce significant structural changes in plankton and nutrient dynamics. The aim of this study is to analyse the changes in the phytoplankton structure related to different conditions of zooplankton predation in an arreic lake. Four cylindrical pvc enclosures of 700 L of capacity were placed in the lake, two of them in free-vegetation waters and the other two in an area dominated by emerged and submerged macrophytes (Scirpus californicus and Potamogeton striatus respectively) with and without predation conditions on the grazer zooplankton. Samples were taken every eight hours for three days during the 2003/2004 summer period. Temperature, pH, dissolved oxygen, conductivity, turbidity and transparency were measured in situ. Water samples were taken to determine the different phosphorus and nitrogen forms and to analyse the phytoplankton. In all treatments, the conductivity oscillated between 1.520 and 1.550 μS.cm -1. Turbidity varied from 48 to 54 NTU and the pH was slightly alkaline (8,48-8,81). Chlorophytes and cyanophytes increased in free-vegetation-water enclosures with fish while no changes were found in the vegetated area. Preliminarily, we can say that the predation effect on zooplankton was more important in the enclosure placed in free-vegetation waters with fish. It was there that the biggest densities of eatable cholorophyte algae (Crucigenia quadrata, Dictyosphaerium pulchellum var. minor, Chlamydomonas sp. and Oocystis parva) were found towards the end of the experiment.
Fil: Ruiz, Gonzalo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Solari, Lía Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Gabellone, Nestor Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
description Shallow lakes can present two alternative stable states with or without submerged macrophytes that produce significant structural changes in plankton and nutrient dynamics. The aim of this study is to analyse the changes in the phytoplankton structure related to different conditions of zooplankton predation in an arreic lake. Four cylindrical pvc enclosures of 700 L of capacity were placed in the lake, two of them in free-vegetation waters and the other two in an area dominated by emerged and submerged macrophytes (Scirpus californicus and Potamogeton striatus respectively) with and without predation conditions on the grazer zooplankton. Samples were taken every eight hours for three days during the 2003/2004 summer period. Temperature, pH, dissolved oxygen, conductivity, turbidity and transparency were measured in situ. Water samples were taken to determine the different phosphorus and nitrogen forms and to analyse the phytoplankton. In all treatments, the conductivity oscillated between 1.520 and 1.550 μS.cm -1. Turbidity varied from 48 to 54 NTU and the pH was slightly alkaline (8,48-8,81). Chlorophytes and cyanophytes increased in free-vegetation-water enclosures with fish while no changes were found in the vegetated area. Preliminarily, we can say that the predation effect on zooplankton was more important in the enclosure placed in free-vegetation waters with fish. It was there that the biggest densities of eatable cholorophyte algae (Crucigenia quadrata, Dictyosphaerium pulchellum var. minor, Chlamydomonas sp. and Oocystis parva) were found towards the end of the experiment.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/11336/65937
Ruiz, Gonzalo Carlos; Solari, Lía Cristina; Gabellone, Nestor Adrian; Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»; Instituto de Limnología Dr. Raúl Ringuelet; Biología Acuática; 22; 12-2005; 231-237
0326-1638
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65937
identifier_str_mv Ruiz, Gonzalo Carlos; Solari, Lía Cristina; Gabellone, Nestor Adrian; Estudio preliminar de las relaciones tróficas en el plancton de una laguna arreica de la provincia de Buenos Aires: experimentación «in situ»; Instituto de Limnología Dr. Raúl Ringuelet; Biología Acuática; 22; 12-2005; 231-237
0326-1638
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.bacuatica.org/BA_ant/ba22.pdf
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 Instituto de Limnología Dr. Raúl Ringuelet
publisher.none.fl_str_mv Instituto de Limnología Dr. Raúl Ringuelet
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 12.993085

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