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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/32472
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:47:44Zoai: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:34982025-09-29 09:47:44.696CONICET 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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1844613487005794304 |
score |
13.070432 |