Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica

Autores
Benitez, Hernan Hugo; Claps, Maria Cristina
Año de publicación
2009
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The vertical and horizontal distributions of zooplankton were investigated in the littoral zone of the San Miguel del Monte Lake (Buenos Aires, Argentina) in five occasions with a diel time scale (24 h) in summer. Sixty zooplankton species were recorded. The measured parameters (conductivity, temperature, dissolved oxygen, pH) showed minimal differences among the sampling occasions. Statistically significant horizontal and vertical zooplankton abundance gradients occurred. The majority of the small-bodied zooplankton (ciliates and rotifers) did not show a significant change in the horizontal or vertical distribution. Only Tintinidium fuviatile and Keratella tropica showed a significant avoidance of the surface during midnight, whereas in the same time Keratella americana showed significant aggregating in the littoral sector more distant to the edge. The spatial distribution of large-bodied zooplankton varied according diel scale. The cladocerans (Bosmina huaronensis and Diaphanosoma birgei) exhibited significant changes in horizontal position with the greatest avoidance of shore during midnight. The copepods (Notodiaptomus incompositus and Metacyclops mendocinus) showed a pronounced diel vertical differentiation, and were more abundant at surface at sunset and midnight. The high inorganic turbidity recorded (transparency: 0.35 m) could reduce the risk of predation and for this reason some zooplankters exhibit limited changes of their spatial distribution during the diel cycle.
Fil: Benitez, Hernan Hugo. 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
Materia
ZOOPLANCTON
DISTRIBUCION ESPACIO-TEMPORAL
ZONA LITORAL
LAGO SOMERO
BUENOS AIRES
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:11336/24414
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásicaBenitez, Hernan HugoClaps, Maria CristinaZOOPLANCTONDISTRIBUCION ESPACIO-TEMPORALZONA LITORALLAGO SOMEROBUENOS AIRESARGENTINAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The vertical and horizontal distributions of zooplankton were investigated in the littoral zone of the San Miguel del Monte Lake (Buenos Aires, Argentina) in five occasions with a diel time scale (24 h) in summer. Sixty zooplankton species were recorded. The measured parameters (conductivity, temperature, dissolved oxygen, pH) showed minimal differences among the sampling occasions. Statistically significant horizontal and vertical zooplankton abundance gradients occurred. The majority of the small-bodied zooplankton (ciliates and rotifers) did not show a significant change in the horizontal or vertical distribution. Only Tintinidium fuviatile and Keratella tropica showed a significant avoidance of the surface during midnight, whereas in the same time Keratella americana showed significant aggregating in the littoral sector more distant to the edge. The spatial distribution of large-bodied zooplankton varied according diel scale. The cladocerans (Bosmina huaronensis and Diaphanosoma birgei) exhibited significant changes in horizontal position with the greatest avoidance of shore during midnight. The copepods (Notodiaptomus incompositus and Metacyclops mendocinus) showed a pronounced diel vertical differentiation, and were more abundant at surface at sunset and midnight. The high inorganic turbidity recorded (transparency: 0.35 m) could reduce the risk of predation and for this reason some zooplankters exhibit limited changes of their spatial distribution during the diel cycle.Fil: Benitez, Hernan Hugo. 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; ArgentinaInstituto de Limnología "Dr. Raúl A. Ringuelet"2009-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24414Benitez, Hernan Hugo; Claps, Maria Cristina; Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica; Instituto de Limnología "Dr. Raúl A. Ringuelet"; Biología Acuática; 26; 8-2009; 19-310326-1638CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://www.bacuatica.org/BA_ant/ba26.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 Técnicas2025-09-03T10:09:17Zoai:ri.conicet.gov.ar:11336/24414instacron: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:34982025-09-03 10:09:17.526CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
title Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
spellingShingle Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
Benitez, Hernan Hugo
ZOOPLANCTON
DISTRIBUCION ESPACIO-TEMPORAL
ZONA LITORAL
LAGO SOMERO
BUENOS AIRES
ARGENTINA
title_short Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
title_full Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
title_fullStr Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
title_full_unstemmed Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
title_sort Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica
dc.creator.none.fl_str_mv Benitez, Hernan Hugo
Claps, Maria Cristina
author Benitez, Hernan Hugo
author_facet Benitez, Hernan Hugo
Claps, Maria Cristina
author_role author
author2 Claps, Maria Cristina
author2_role author
dc.subject.none.fl_str_mv ZOOPLANCTON
DISTRIBUCION ESPACIO-TEMPORAL
ZONA LITORAL
LAGO SOMERO
BUENOS AIRES
ARGENTINA
topic ZOOPLANCTON
DISTRIBUCION ESPACIO-TEMPORAL
ZONA LITORAL
LAGO SOMERO
BUENOS AIRES
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 The vertical and horizontal distributions of zooplankton were investigated in the littoral zone of the San Miguel del Monte Lake (Buenos Aires, Argentina) in five occasions with a diel time scale (24 h) in summer. Sixty zooplankton species were recorded. The measured parameters (conductivity, temperature, dissolved oxygen, pH) showed minimal differences among the sampling occasions. Statistically significant horizontal and vertical zooplankton abundance gradients occurred. The majority of the small-bodied zooplankton (ciliates and rotifers) did not show a significant change in the horizontal or vertical distribution. Only Tintinidium fuviatile and Keratella tropica showed a significant avoidance of the surface during midnight, whereas in the same time Keratella americana showed significant aggregating in the littoral sector more distant to the edge. The spatial distribution of large-bodied zooplankton varied according diel scale. The cladocerans (Bosmina huaronensis and Diaphanosoma birgei) exhibited significant changes in horizontal position with the greatest avoidance of shore during midnight. The copepods (Notodiaptomus incompositus and Metacyclops mendocinus) showed a pronounced diel vertical differentiation, and were more abundant at surface at sunset and midnight. The high inorganic turbidity recorded (transparency: 0.35 m) could reduce the risk of predation and for this reason some zooplankters exhibit limited changes of their spatial distribution during the diel cycle.
Fil: Benitez, Hernan Hugo. 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
description The vertical and horizontal distributions of zooplankton were investigated in the littoral zone of the San Miguel del Monte Lake (Buenos Aires, Argentina) in five occasions with a diel time scale (24 h) in summer. Sixty zooplankton species were recorded. The measured parameters (conductivity, temperature, dissolved oxygen, pH) showed minimal differences among the sampling occasions. Statistically significant horizontal and vertical zooplankton abundance gradients occurred. The majority of the small-bodied zooplankton (ciliates and rotifers) did not show a significant change in the horizontal or vertical distribution. Only Tintinidium fuviatile and Keratella tropica showed a significant avoidance of the surface during midnight, whereas in the same time Keratella americana showed significant aggregating in the littoral sector more distant to the edge. The spatial distribution of large-bodied zooplankton varied according diel scale. The cladocerans (Bosmina huaronensis and Diaphanosoma birgei) exhibited significant changes in horizontal position with the greatest avoidance of shore during midnight. The copepods (Notodiaptomus incompositus and Metacyclops mendocinus) showed a pronounced diel vertical differentiation, and were more abundant at surface at sunset and midnight. The high inorganic turbidity recorded (transparency: 0.35 m) could reduce the risk of predation and for this reason some zooplankters exhibit limited changes of their spatial distribution during the diel cycle.
publishDate 2009
dc.date.none.fl_str_mv 2009-08
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/11336/24414
Benitez, Hernan Hugo; Claps, Maria Cristina; Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica; Instituto de Limnología "Dr. Raúl A. Ringuelet"; Biología Acuática; 26; 8-2009; 19-31
0326-1638
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24414
identifier_str_mv Benitez, Hernan Hugo; Claps, Maria Cristina; Distribución horizontal y vertical del zooplancton en un ciclo diario en el litoral de una laguna pampásica; Instituto de Limnología "Dr. Raúl A. Ringuelet"; Biología Acuática; 26; 8-2009; 19-31
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/ba26.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 A. Ringuelet"
publisher.none.fl_str_mv Instituto de Limnología "Dr. Raúl A. 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 13.13397

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