Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)

Autores
Jose, Susana Beatriz; Muñoz, Sandra Daniela; Frau, Diego; Paggi, Juan Cesar; Scarabotti, Pablo Augusto; Devercelli, Melina; Meerhoff, Mariana
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In water bodies where cladocerans are typically small or present in low biomass, such as in the tropics and subtropics of South America, rotifers may play a larger role in ecosystem functioning than in temperate lakes. The aim of this study was to analyze the horizontal distribution of richness and abundance of rotifers, their diel distribution patterns, and the relative importance of physical and biotic characteristics as their shaping factors, in a subtropical shallow vegetated lake of the Paraná River floodplain (Argentina). Three sampling stations were located along the major axis of the lake, one in open waters and two in littoral area dominated by the emergent Panicum elephantipes, Cyperus alternifolius and floating mats of the filamentous algae Cladophora spp. Two further stations were located on the transverse axis. Rotifer samples were taken on four occasions (at noon and midnight) during a five week period in the summer to avoid possible changes in the pattern of distribution of macrophytes and hydrological variability of the lake. Rotifer richness was higher in the littoral zone whereas rotifer abundance was higher in the limnetic zone. Some rotifers, such as Brachionus havanaensis and Keratella tropica exhibited changes in their diel horizontal distribution with higher concentrations of organisms at vegetated zones during the day time. In contrast, Polyarthra sp. were more abundant at night-time in both limnetic and littoral areas. The heterogeneous horizontal distribution of rotifers cannot be explained by the rather homogeneous distribution of both physical environmental factors and phytoplankton abundance. Rotifer distribution may be related to a complex of factors including the presence or absence of vegetation, the relatively uniform distribution of visual predators (fishes) and the heterogeneous distribution of non-visual predators (insects and shrimps).
Fil: Jose, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Muñoz, Sandra Daniela. Universidad Nacional del Litoral; Argentina
Fil: Frau, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Paggi, Juan Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Scarabotti, Pablo Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Devercelli, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Meerhoff, Mariana. University Aarhus; Dinamarca
Materia
Cladocerans
Diel Horizontal Distribution
Emergent Macrophytes
Ostracods
Vertebrate And Invertebrate Predators
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:11336/70937
Acceder
id CONICETDig_af6238ca7a47c9820642094f102c2dec
oai_identifier_str oai:ri.conicet.gov.ar:11336/70937
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)Jose, Susana BeatrizMuñoz, Sandra DanielaFrau, DiegoPaggi, Juan CesarScarabotti, Pablo AugustoDevercelli, MelinaMeerhoff, MarianaCladoceransDiel Horizontal DistributionEmergent MacrophytesOstracodsVertebrate And Invertebrate Predatorshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In water bodies where cladocerans are typically small or present in low biomass, such as in the tropics and subtropics of South America, rotifers may play a larger role in ecosystem functioning than in temperate lakes. The aim of this study was to analyze the horizontal distribution of richness and abundance of rotifers, their diel distribution patterns, and the relative importance of physical and biotic characteristics as their shaping factors, in a subtropical shallow vegetated lake of the Paraná River floodplain (Argentina). Three sampling stations were located along the major axis of the lake, one in open waters and two in littoral area dominated by the emergent Panicum elephantipes, Cyperus alternifolius and floating mats of the filamentous algae Cladophora spp. Two further stations were located on the transverse axis. Rotifer samples were taken on four occasions (at noon and midnight) during a five week period in the summer to avoid possible changes in the pattern of distribution of macrophytes and hydrological variability of the lake. Rotifer richness was higher in the littoral zone whereas rotifer abundance was higher in the limnetic zone. Some rotifers, such as Brachionus havanaensis and Keratella tropica exhibited changes in their diel horizontal distribution with higher concentrations of organisms at vegetated zones during the day time. In contrast, Polyarthra sp. were more abundant at night-time in both limnetic and littoral areas. The heterogeneous horizontal distribution of rotifers cannot be explained by the rather homogeneous distribution of both physical environmental factors and phytoplankton abundance. Rotifer distribution may be related to a complex of factors including the presence or absence of vegetation, the relatively uniform distribution of visual predators (fishes) and the heterogeneous distribution of non-visual predators (insects and shrimps).Fil: Jose, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Muñoz, Sandra Daniela. Universidad Nacional del Litoral; ArgentinaFil: Frau, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Paggi, Juan Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Scarabotti, Pablo Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Devercelli, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Meerhoff, Mariana. University Aarhus; DinamarcaE Schweizerbartsche Verlags2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70937Jose, Susana Beatriz; Muñoz, Sandra Daniela; Frau, Diego; Paggi, Juan Cesar; Scarabotti, Pablo Augusto; et al.; Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina); E Schweizerbartsche Verlags; Fundamental and Applied Limnology; 180; 4; 5-2012; 321-3331863-9135CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1127/1863-9135/2012/0245info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:24:47Zoai:ri.conicet.gov.ar:11336/70937instacron: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 10:24:47.402CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
title Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
spellingShingle Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
Jose, Susana Beatriz
Cladocerans
Diel Horizontal Distribution
Emergent Macrophytes
Ostracods
Vertebrate And Invertebrate Predators
title_short Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
title_full Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
title_fullStr Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
title_full_unstemmed Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
title_sort Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina)
dc.creator.none.fl_str_mv Jose, Susana Beatriz
Muñoz, Sandra Daniela
Frau, Diego
Paggi, Juan Cesar
Scarabotti, Pablo Augusto
Devercelli, Melina
Meerhoff, Mariana
author Jose, Susana Beatriz
author_facet Jose, Susana Beatriz
Muñoz, Sandra Daniela
Frau, Diego
Paggi, Juan Cesar
Scarabotti, Pablo Augusto
Devercelli, Melina
Meerhoff, Mariana
author_role author
author2 Muñoz, Sandra Daniela
Frau, Diego
Paggi, Juan Cesar
Scarabotti, Pablo Augusto
Devercelli, Melina
Meerhoff, Mariana
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Cladocerans
Diel Horizontal Distribution
Emergent Macrophytes
Ostracods
Vertebrate And Invertebrate Predators
topic Cladocerans
Diel Horizontal Distribution
Emergent Macrophytes
Ostracods
Vertebrate And Invertebrate Predators
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In water bodies where cladocerans are typically small or present in low biomass, such as in the tropics and subtropics of South America, rotifers may play a larger role in ecosystem functioning than in temperate lakes. The aim of this study was to analyze the horizontal distribution of richness and abundance of rotifers, their diel distribution patterns, and the relative importance of physical and biotic characteristics as their shaping factors, in a subtropical shallow vegetated lake of the Paraná River floodplain (Argentina). Three sampling stations were located along the major axis of the lake, one in open waters and two in littoral area dominated by the emergent Panicum elephantipes, Cyperus alternifolius and floating mats of the filamentous algae Cladophora spp. Two further stations were located on the transverse axis. Rotifer samples were taken on four occasions (at noon and midnight) during a five week period in the summer to avoid possible changes in the pattern of distribution of macrophytes and hydrological variability of the lake. Rotifer richness was higher in the littoral zone whereas rotifer abundance was higher in the limnetic zone. Some rotifers, such as Brachionus havanaensis and Keratella tropica exhibited changes in their diel horizontal distribution with higher concentrations of organisms at vegetated zones during the day time. In contrast, Polyarthra sp. were more abundant at night-time in both limnetic and littoral areas. The heterogeneous horizontal distribution of rotifers cannot be explained by the rather homogeneous distribution of both physical environmental factors and phytoplankton abundance. Rotifer distribution may be related to a complex of factors including the presence or absence of vegetation, the relatively uniform distribution of visual predators (fishes) and the heterogeneous distribution of non-visual predators (insects and shrimps).
Fil: Jose, Susana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Muñoz, Sandra Daniela. Universidad Nacional del Litoral; Argentina
Fil: Frau, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Paggi, Juan Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Scarabotti, Pablo Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Devercelli, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
Fil: Meerhoff, Mariana. University Aarhus; Dinamarca
description In water bodies where cladocerans are typically small or present in low biomass, such as in the tropics and subtropics of South America, rotifers may play a larger role in ecosystem functioning than in temperate lakes. The aim of this study was to analyze the horizontal distribution of richness and abundance of rotifers, their diel distribution patterns, and the relative importance of physical and biotic characteristics as their shaping factors, in a subtropical shallow vegetated lake of the Paraná River floodplain (Argentina). Three sampling stations were located along the major axis of the lake, one in open waters and two in littoral area dominated by the emergent Panicum elephantipes, Cyperus alternifolius and floating mats of the filamentous algae Cladophora spp. Two further stations were located on the transverse axis. Rotifer samples were taken on four occasions (at noon and midnight) during a five week period in the summer to avoid possible changes in the pattern of distribution of macrophytes and hydrological variability of the lake. Rotifer richness was higher in the littoral zone whereas rotifer abundance was higher in the limnetic zone. Some rotifers, such as Brachionus havanaensis and Keratella tropica exhibited changes in their diel horizontal distribution with higher concentrations of organisms at vegetated zones during the day time. In contrast, Polyarthra sp. were more abundant at night-time in both limnetic and littoral areas. The heterogeneous horizontal distribution of rotifers cannot be explained by the rather homogeneous distribution of both physical environmental factors and phytoplankton abundance. Rotifer distribution may be related to a complex of factors including the presence or absence of vegetation, the relatively uniform distribution of visual predators (fishes) and the heterogeneous distribution of non-visual predators (insects and shrimps).
publishDate 2012
dc.date.none.fl_str_mv 2012-05
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/11336/70937
Jose, Susana Beatriz; Muñoz, Sandra Daniela; Frau, Diego; Paggi, Juan Cesar; Scarabotti, Pablo Augusto; et al.; Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina); E Schweizerbartsche Verlags; Fundamental and Applied Limnology; 180; 4; 5-2012; 321-333
1863-9135
CONICET Digital
CONICET
url http://hdl.handle.net/11336/70937
identifier_str_mv Jose, Susana Beatriz; Muñoz, Sandra Daniela; Frau, Diego; Paggi, Juan Cesar; Scarabotti, Pablo Augusto; et al.; Horizontal distribution of rotifers in a subtropical shallow lake (Paraná floodplain, Argentina); E Schweizerbartsche Verlags; Fundamental and Applied Limnology; 180; 4; 5-2012; 321-333
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/doi/10.1127/1863-9135/2012/0245
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
application/pdf
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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