Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone

Autores
Cortelezzi, Agustina; Rodrigues Capitulo, Alberto; Boccardi, Lucía; Arocena, Rafael
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objectives of the present study were to describe the species composition, diversity and distribution of the zoobenthic assemblages, to estimate the abundance and biomass of the dominant species, and to identify the main environmental factors determining the distribution patterns of the invertebrates from a freshwater to an estuarine zone in a temperate estuary of South America. The Río de la Plata estuary is a microtidal system characterized by a high concentration of suspended solids. Fifty-three taxa of meso- and macro-invertebrates were identified in the samples collected during November and December 2001. Molluscs, annelids, crustaceans and nematodes were found at 90% of the sampling sites. Molluscs comprised up to about 90% of the total zoobenthos biomass: the remaining percentage corresponded mainly to annelids and less to nematodes and crustaceans. An ecocline along the salinity gradient could be observed for the benthic assemblages from the freshwater to the estuarine zone in Rio de la Plata. A Canonical Correspondence Analysis shows that results from sampling sites in the outer zone were strongly related to salinity, depth and pH and less to oxygen and percentage of clay. The results from stations in the inner zone, and part of the middle zone, were mainly related to the occurrence of sand and contents of NH4+–N, NO3−–N, and PO43−–P.
Fil: Cortelezzi, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Rodrigues Capitulo, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Boccardi, Lucía. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Arocena, Rafael. Universidad de la República. Facultad de Ciencias; Uruguay
Materia
Estuarine Systems
Zoobenthos
Diversity
Biomass
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:11336/32472
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zoneCortelezzi, AgustinaRodrigues Capitulo, AlbertoBoccardi, LucíaArocena, RafaelEstuarine SystemsZoobenthosDiversityBiomasshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The objectives of the present study were to describe the species composition, diversity and distribution of the zoobenthic assemblages, to estimate the abundance and biomass of the dominant species, and to identify the main environmental factors determining the distribution patterns of the invertebrates from a freshwater to an estuarine zone in a temperate estuary of South America. The Río de la Plata estuary is a microtidal system characterized by a high concentration of suspended solids. Fifty-three taxa of meso- and macro-invertebrates were identified in the samples collected during November and December 2001. Molluscs, annelids, crustaceans and nematodes were found at 90% of the sampling sites. Molluscs comprised up to about 90% of the total zoobenthos biomass: the remaining percentage corresponded mainly to annelids and less to nematodes and crustaceans. An ecocline along the salinity gradient could be observed for the benthic assemblages from the freshwater to the estuarine zone in Rio de la Plata. A Canonical Correspondence Analysis shows that results from sampling sites in the outer zone were strongly related to salinity, depth and pH and less to oxygen and percentage of clay. The results from stations in the inner zone, and part of the middle zone, were mainly related to the occurrence of sand and contents of NH4+–N, NO3−–N, and PO43−–P.Fil: Cortelezzi, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaFil: Rodrigues Capitulo, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaFil: Boccardi, Lucía. Universidad de la República. Facultad de Ciencias; UruguayFil: Arocena, Rafael. Universidad de la República. Facultad de Ciencias; UruguayElsevier2007-12info: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/11336/32472Cortelezzi, Agustina; Rodrigues Capitulo, Alberto; Arocena, Rafael; Boccardi, Lucía; Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone; Elsevier; Journal Of Marine Systems; 68; 3-4; 12-2007; 569-5800924-7963CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092479630700070Xinfo:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1016/j.jmarsys.2007.02.024info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T11:47:02Zoai:ri.conicet.gov.ar:11336/32472instacron: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:34982025-10-29 11:47:02.451CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
title Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
spellingShingle Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
Cortelezzi, Agustina
Estuarine Systems
Zoobenthos
Diversity
Biomass
title_short Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
title_full Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
title_fullStr Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
title_full_unstemmed Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
title_sort Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone
dc.creator.none.fl_str_mv Cortelezzi, Agustina
Rodrigues Capitulo, Alberto
Boccardi, Lucía
Arocena, Rafael
author Cortelezzi, Agustina
author_facet Cortelezzi, Agustina
Rodrigues Capitulo, Alberto
Boccardi, Lucía
Arocena, Rafael
author_role author
author2 Rodrigues Capitulo, Alberto
Boccardi, Lucía
Arocena, Rafael
author2_role author
author
author
dc.subject.none.fl_str_mv Estuarine Systems
Zoobenthos
Diversity
Biomass
topic Estuarine Systems
Zoobenthos
Diversity
Biomass
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 objectives of the present study were to describe the species composition, diversity and distribution of the zoobenthic assemblages, to estimate the abundance and biomass of the dominant species, and to identify the main environmental factors determining the distribution patterns of the invertebrates from a freshwater to an estuarine zone in a temperate estuary of South America. The Río de la Plata estuary is a microtidal system characterized by a high concentration of suspended solids. Fifty-three taxa of meso- and macro-invertebrates were identified in the samples collected during November and December 2001. Molluscs, annelids, crustaceans and nematodes were found at 90% of the sampling sites. Molluscs comprised up to about 90% of the total zoobenthos biomass: the remaining percentage corresponded mainly to annelids and less to nematodes and crustaceans. An ecocline along the salinity gradient could be observed for the benthic assemblages from the freshwater to the estuarine zone in Rio de la Plata. A Canonical Correspondence Analysis shows that results from sampling sites in the outer zone were strongly related to salinity, depth and pH and less to oxygen and percentage of clay. The results from stations in the inner zone, and part of the middle zone, were mainly related to the occurrence of sand and contents of NH4+–N, NO3−–N, and PO43−–P.
Fil: Cortelezzi, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Rodrigues Capitulo, Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Boccardi, Lucía. Universidad de la República. Facultad de Ciencias; Uruguay
Fil: Arocena, Rafael. Universidad de la República. Facultad de Ciencias; Uruguay
description The objectives of the present study were to describe the species composition, diversity and distribution of the zoobenthic assemblages, to estimate the abundance and biomass of the dominant species, and to identify the main environmental factors determining the distribution patterns of the invertebrates from a freshwater to an estuarine zone in a temperate estuary of South America. The Río de la Plata estuary is a microtidal system characterized by a high concentration of suspended solids. Fifty-three taxa of meso- and macro-invertebrates were identified in the samples collected during November and December 2001. Molluscs, annelids, crustaceans and nematodes were found at 90% of the sampling sites. Molluscs comprised up to about 90% of the total zoobenthos biomass: the remaining percentage corresponded mainly to annelids and less to nematodes and crustaceans. An ecocline along the salinity gradient could be observed for the benthic assemblages from the freshwater to the estuarine zone in Rio de la Plata. A Canonical Correspondence Analysis shows that results from sampling sites in the outer zone were strongly related to salinity, depth and pH and less to oxygen and percentage of clay. The results from stations in the inner zone, and part of the middle zone, were mainly related to the occurrence of sand and contents of NH4+–N, NO3−–N, and PO43−–P.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/32472
Cortelezzi, Agustina; Rodrigues Capitulo, Alberto; Arocena, Rafael; Boccardi, Lucía; Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone; Elsevier; Journal Of Marine Systems; 68; 3-4; 12-2007; 569-580
0924-7963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32472
identifier_str_mv Cortelezzi, Agustina; Rodrigues Capitulo, Alberto; Arocena, Rafael; Boccardi, Lucía; Benthic assemblages of a temperate estuarine system in South America: Transition from a freshwater to an estuarine zone; Elsevier; Journal Of Marine Systems; 68; 3-4; 12-2007; 569-580
0924-7963
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://www.sciencedirect.com/science/article/pii/S092479630700070X
info:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1016/j.jmarsys.2007.02.024
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 Elsevier
publisher.none.fl_str_mv Elsevier
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 13.10058

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