Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River

Autores
Blettler, Martin Cesar Maria; Marchese Garello, Mercedes Rosa
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Benthic assessment of lotic environments impacted by bridge and highway construction at the Paraná River Delta is reported. The purpose of the study was to examine the degree of impact of physical disturbances on benthic invertebrates of four secondary channels (Carbón Chico, Carbón Grande 1, Carbón Grande 2 and Paranacito Victoria Rivers). The cluster and DCA analyses showed two groups of habitats based on the grain size sediments and organic matter content. The sites with silt-clayed (mainly upstream from the bridges) showed higher species richness, diversity and benthic biomass than the sites with sandy sediments (under and downstream from the bridges) where the highest densities reached by Narapa bonettoi and Myoretronectes paranaensis were obtained. Although the bridge construction has affected the benthic structure due to the erosion process of bottom sediments, the typical r-strategist species assemblage related to sandy unstable sediments in Paraná River colonized the habitat successfully within less than one year after  disturbances.
Fil: Blettler, Martin Cesar Maria. 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: Marchese Garello, Mercedes Rosa. 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
Materia
BENTHIC INVERTEBRATES
BRIDGE AND HIGHWAY IMPACTS
LOWER PARANA RIVER
PHYSICAL DISTURBANCE
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:11336/102585
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná RiverBlettler, Martin Cesar MariaMarchese Garello, Mercedes RosaBENTHIC INVERTEBRATESBRIDGE AND HIGHWAY IMPACTSLOWER PARANA RIVERPHYSICAL DISTURBANCEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Benthic assessment of lotic environments impacted by bridge and highway construction at the Paraná River Delta is reported. The purpose of the study was to examine the degree of impact of physical disturbances on benthic invertebrates of four secondary channels (Carbón Chico, Carbón Grande 1, Carbón Grande 2 and Paranacito Victoria Rivers). The cluster and DCA analyses showed two groups of habitats based on the grain size sediments and organic matter content. The sites with silt-clayed (mainly upstream from the bridges) showed higher species richness, diversity and benthic biomass than the sites with sandy sediments (under and downstream from the bridges) where the highest densities reached by Narapa bonettoi and Myoretronectes paranaensis were obtained. Although the bridge construction has affected the benthic structure due to the erosion process of bottom sediments, the typical r-strategist species assemblage related to sandy unstable sediments in Paraná River colonized the habitat successfully within less than one year after  disturbances.Fil: Blettler, Martin Cesar Maria. 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: Marchese Garello, Mercedes Rosa. 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; ArgentinaInterciencia2005-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102585Blettler, Martin Cesar Maria; Marchese Garello, Mercedes Rosa; Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River; Interciencia; Interciencia; 30; 2; 2-2005; 60-660378-1844CONICET DigitalCONICETenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:14:49Zoai:ri.conicet.gov.ar:11336/102585instacron: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:34982025-10-22 11:14:49.935CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
title Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
spellingShingle Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
Blettler, Martin Cesar Maria
BENTHIC INVERTEBRATES
BRIDGE AND HIGHWAY IMPACTS
LOWER PARANA RIVER
PHYSICAL DISTURBANCE
title_short Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
title_full Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
title_fullStr Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
title_full_unstemmed Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
title_sort Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River
dc.creator.none.fl_str_mv Blettler, Martin Cesar Maria
Marchese Garello, Mercedes Rosa
author Blettler, Martin Cesar Maria
author_facet Blettler, Martin Cesar Maria
Marchese Garello, Mercedes Rosa
author_role author
author2 Marchese Garello, Mercedes Rosa
author2_role author
dc.subject.none.fl_str_mv BENTHIC INVERTEBRATES
BRIDGE AND HIGHWAY IMPACTS
LOWER PARANA RIVER
PHYSICAL DISTURBANCE
topic BENTHIC INVERTEBRATES
BRIDGE AND HIGHWAY IMPACTS
LOWER PARANA RIVER
PHYSICAL DISTURBANCE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Benthic assessment of lotic environments impacted by bridge and highway construction at the Paraná River Delta is reported. The purpose of the study was to examine the degree of impact of physical disturbances on benthic invertebrates of four secondary channels (Carbón Chico, Carbón Grande 1, Carbón Grande 2 and Paranacito Victoria Rivers). The cluster and DCA analyses showed two groups of habitats based on the grain size sediments and organic matter content. The sites with silt-clayed (mainly upstream from the bridges) showed higher species richness, diversity and benthic biomass than the sites with sandy sediments (under and downstream from the bridges) where the highest densities reached by Narapa bonettoi and Myoretronectes paranaensis were obtained. Although the bridge construction has affected the benthic structure due to the erosion process of bottom sediments, the typical r-strategist species assemblage related to sandy unstable sediments in Paraná River colonized the habitat successfully within less than one year after  disturbances.
Fil: Blettler, Martin Cesar Maria. 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: Marchese Garello, Mercedes Rosa. 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
description Benthic assessment of lotic environments impacted by bridge and highway construction at the Paraná River Delta is reported. The purpose of the study was to examine the degree of impact of physical disturbances on benthic invertebrates of four secondary channels (Carbón Chico, Carbón Grande 1, Carbón Grande 2 and Paranacito Victoria Rivers). The cluster and DCA analyses showed two groups of habitats based on the grain size sediments and organic matter content. The sites with silt-clayed (mainly upstream from the bridges) showed higher species richness, diversity and benthic biomass than the sites with sandy sediments (under and downstream from the bridges) where the highest densities reached by Narapa bonettoi and Myoretronectes paranaensis were obtained. Although the bridge construction has affected the benthic structure due to the erosion process of bottom sediments, the typical r-strategist species assemblage related to sandy unstable sediments in Paraná River colonized the habitat successfully within less than one year after  disturbances.
publishDate 2005
dc.date.none.fl_str_mv 2005-02
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/11336/102585
Blettler, Martin Cesar Maria; Marchese Garello, Mercedes Rosa; Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River; Interciencia; Interciencia; 30; 2; 2-2005; 60-66
0378-1844
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102585
identifier_str_mv Blettler, Martin Cesar Maria; Marchese Garello, Mercedes Rosa; Effects of Bridges construction on the benthic invertebrates structure of the Delta Paraná River; Interciencia; Interciencia; 30; 2; 2-2005; 60-66
0378-1844
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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 Interciencia
publisher.none.fl_str_mv Interciencia
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
_version_ 1846781572833869824
score 12.982451

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