Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments

Autores
Santoferrara, Luciana Fernanda; Alder, Viviana Andrea
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ciliates from sub-surface waters of the Argentine shelf and the Drake Passage under austral summer and autumn conditions were examined and compared for the first time. In both environments, the taxonomic structure of ciliates was related to temperature and salinity, and aloricate oligotrichs dominated in density (80%) over loricate oligotrichs, litostomatids and prostomatids, while the microplanktonic fraction prevailed in terms of biomass (90%) over the nanociliates. Myrionecta rubra was found all along the Argentine shelf only in autumn, but showed isolated peaks of abundance during summer. Mean values of density and biomass of total ciliates decreased ca. 2-fold from the shelf-slope to oceanic waters, while potential maximum production of aloricate oligotrichs decreased 9-fold, in relation with the drop in chlorophyll a concentration and the latitudinal decline of temperature, also reflected in maximum growth rates. Fifty percent of total ciliate abundance was represented by local increases (maximum: 20 000 ind. L-1), which were spatially superimposed with ranges of seawater temperature and chlorophyll a, respectively, and were found in the nearby of fronts located on the shelf and the slope.
Fil: Santoferrara, Luciana Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
Fil: Alder, Viviana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
Materia
Planktonic ciliates
Abundance
Environmental factors
South-western Atlantic
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:11336/248555
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environmentsSantoferrara, Luciana FernandaAlder, Viviana AndreaPlanktonic ciliatesAbundanceEnvironmental factorsSouth-western Atlantichttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Ciliates from sub-surface waters of the Argentine shelf and the Drake Passage under austral summer and autumn conditions were examined and compared for the first time. In both environments, the taxonomic structure of ciliates was related to temperature and salinity, and aloricate oligotrichs dominated in density (80%) over loricate oligotrichs, litostomatids and prostomatids, while the microplanktonic fraction prevailed in terms of biomass (90%) over the nanociliates. Myrionecta rubra was found all along the Argentine shelf only in autumn, but showed isolated peaks of abundance during summer. Mean values of density and biomass of total ciliates decreased ca. 2-fold from the shelf-slope to oceanic waters, while potential maximum production of aloricate oligotrichs decreased 9-fold, in relation with the drop in chlorophyll a concentration and the latitudinal decline of temperature, also reflected in maximum growth rates. Fifty percent of total ciliate abundance was represented by local increases (maximum: 20 000 ind. L-1), which were spatially superimposed with ranges of seawater temperature and chlorophyll a, respectively, and were found in the nearby of fronts located on the shelf and the slope.Fil: Santoferrara, Luciana Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; ArgentinaFil: Alder, Viviana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; ArgentinaOxford University Press2009-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/248555Santoferrara, Luciana Fernanda; Alder, Viviana Andrea; Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments; Oxford University Press; Journal of Plankton Research; 31; 8; 5-2009; 837-8510142-7873CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/plankt/article-abstract/31/8/837/1489805info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/fbp033info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:45Zoai:ri.conicet.gov.ar:11336/248555instacron: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 10:00:45.478CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
title Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
spellingShingle Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
Santoferrara, Luciana Fernanda
Planktonic ciliates
Abundance
Environmental factors
South-western Atlantic
title_short Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
title_full Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
title_fullStr Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
title_full_unstemmed Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
title_sort Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments
dc.creator.none.fl_str_mv Santoferrara, Luciana Fernanda
Alder, Viviana Andrea
author Santoferrara, Luciana Fernanda
author_facet Santoferrara, Luciana Fernanda
Alder, Viviana Andrea
author_role author
author2 Alder, Viviana Andrea
author2_role author
dc.subject.none.fl_str_mv Planktonic ciliates
Abundance
Environmental factors
South-western Atlantic
topic Planktonic ciliates
Abundance
Environmental factors
South-western Atlantic
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Ciliates from sub-surface waters of the Argentine shelf and the Drake Passage under austral summer and autumn conditions were examined and compared for the first time. In both environments, the taxonomic structure of ciliates was related to temperature and salinity, and aloricate oligotrichs dominated in density (80%) over loricate oligotrichs, litostomatids and prostomatids, while the microplanktonic fraction prevailed in terms of biomass (90%) over the nanociliates. Myrionecta rubra was found all along the Argentine shelf only in autumn, but showed isolated peaks of abundance during summer. Mean values of density and biomass of total ciliates decreased ca. 2-fold from the shelf-slope to oceanic waters, while potential maximum production of aloricate oligotrichs decreased 9-fold, in relation with the drop in chlorophyll a concentration and the latitudinal decline of temperature, also reflected in maximum growth rates. Fifty percent of total ciliate abundance was represented by local increases (maximum: 20 000 ind. L-1), which were spatially superimposed with ranges of seawater temperature and chlorophyll a, respectively, and were found in the nearby of fronts located on the shelf and the slope.
Fil: Santoferrara, Luciana Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
Fil: Alder, Viviana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
description Ciliates from sub-surface waters of the Argentine shelf and the Drake Passage under austral summer and autumn conditions were examined and compared for the first time. In both environments, the taxonomic structure of ciliates was related to temperature and salinity, and aloricate oligotrichs dominated in density (80%) over loricate oligotrichs, litostomatids and prostomatids, while the microplanktonic fraction prevailed in terms of biomass (90%) over the nanociliates. Myrionecta rubra was found all along the Argentine shelf only in autumn, but showed isolated peaks of abundance during summer. Mean values of density and biomass of total ciliates decreased ca. 2-fold from the shelf-slope to oceanic waters, while potential maximum production of aloricate oligotrichs decreased 9-fold, in relation with the drop in chlorophyll a concentration and the latitudinal decline of temperature, also reflected in maximum growth rates. Fifty percent of total ciliate abundance was represented by local increases (maximum: 20 000 ind. L-1), which were spatially superimposed with ranges of seawater temperature and chlorophyll a, respectively, and were found in the nearby of fronts located on the shelf and the slope.
publishDate 2009
dc.date.none.fl_str_mv 2009-05
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/11336/248555
Santoferrara, Luciana Fernanda; Alder, Viviana Andrea; Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments; Oxford University Press; Journal of Plankton Research; 31; 8; 5-2009; 837-851
0142-7873
CONICET Digital
CONICET
url http://hdl.handle.net/11336/248555
identifier_str_mv Santoferrara, Luciana Fernanda; Alder, Viviana Andrea; Abundance trends and ecology of planktonic ciliates of the south-western Atlantic (35-63 S): a comparison between neritic and oceanic environments; Oxford University Press; Journal of Plankton Research; 31; 8; 5-2009; 837-851
0142-7873
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/plankt/article-abstract/31/8/837/1489805
info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/fbp033
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
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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