Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)

Autores
Zilli, Florencia Lucila
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
An investigation of benthic invertebrates was conducted in the Paraná River (Argentina) floodplain to assess patterns of biomass and production in relation to lateral river connectivity. Environmental and invertebrate samples were collected monthly from April 2005 to March 2006 at sites with different lateral surface-connection. The investigated invertebrate assemblages were characterized by high biomass and high production. The key factor determining the benthic assemblages was river connectivity and indirectly, substrate characteristics, water transparency, and depth. With increasing river connectivity, biomass and production of oligochaetes, native bivalves, and dipterans decreased, whereas both variables increased for non-native bivalves, gastropods and ephemeropterans. Benthic assemblages of most of sites had an average similarity in the composition of about 50% along the study period, but the number of taxa contributing to the overall similarity was lower at sites located at long distance from the main channel than at sites located next to it. Potential production was high compared to literature data, which underscores the importance of preserving floodplain areas and maintaining natural lateral connectivity. High habitat patchiness mediated by lateral-surface connectivity appeared to promote benthic resources diversity, which in turn controls productivity of this floodplain-river system.
Fil: Zilli, Florencia Lucila. 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 Biomass
Connectivity
Floodplain Environments
Productivity
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:11336/22367
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)Zilli, Florencia LucilaBenthic BiomassConnectivityFloodplain EnvironmentsProductivityhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1An investigation of benthic invertebrates was conducted in the Paraná River (Argentina) floodplain to assess patterns of biomass and production in relation to lateral river connectivity. Environmental and invertebrate samples were collected monthly from April 2005 to March 2006 at sites with different lateral surface-connection. The investigated invertebrate assemblages were characterized by high biomass and high production. The key factor determining the benthic assemblages was river connectivity and indirectly, substrate characteristics, water transparency, and depth. With increasing river connectivity, biomass and production of oligochaetes, native bivalves, and dipterans decreased, whereas both variables increased for non-native bivalves, gastropods and ephemeropterans. Benthic assemblages of most of sites had an average similarity in the composition of about 50% along the study period, but the number of taxa contributing to the overall similarity was lower at sites located at long distance from the main channel than at sites located next to it. Potential production was high compared to literature data, which underscores the importance of preserving floodplain areas and maintaining natural lateral connectivity. High habitat patchiness mediated by lateral-surface connectivity appeared to promote benthic resources diversity, which in turn controls productivity of this floodplain-river system.Fil: Zilli, Florencia Lucila. 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; ArgentinaWiley VCH Verlag2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22367Zilli, Florencia Lucila; Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina); Wiley VCH Verlag; International Review Of Hydrobiology; 98; 6; 8-2013; 284-2931434-2944CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/iroh.201201610info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/iroh.201201610/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:56Zoai:ri.conicet.gov.ar:11336/22367instacron: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:34982025-09-03 09:46:56.835CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
title Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
spellingShingle Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
Zilli, Florencia Lucila
Benthic Biomass
Connectivity
Floodplain Environments
Productivity
title_short Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
title_full Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
title_fullStr Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
title_full_unstemmed Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
title_sort Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
dc.creator.none.fl_str_mv Zilli, Florencia Lucila
author Zilli, Florencia Lucila
author_facet Zilli, Florencia Lucila
author_role author
dc.subject.none.fl_str_mv Benthic Biomass
Connectivity
Floodplain Environments
Productivity
topic Benthic Biomass
Connectivity
Floodplain Environments
Productivity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv An investigation of benthic invertebrates was conducted in the Paraná River (Argentina) floodplain to assess patterns of biomass and production in relation to lateral river connectivity. Environmental and invertebrate samples were collected monthly from April 2005 to March 2006 at sites with different lateral surface-connection. The investigated invertebrate assemblages were characterized by high biomass and high production. The key factor determining the benthic assemblages was river connectivity and indirectly, substrate characteristics, water transparency, and depth. With increasing river connectivity, biomass and production of oligochaetes, native bivalves, and dipterans decreased, whereas both variables increased for non-native bivalves, gastropods and ephemeropterans. Benthic assemblages of most of sites had an average similarity in the composition of about 50% along the study period, but the number of taxa contributing to the overall similarity was lower at sites located at long distance from the main channel than at sites located next to it. Potential production was high compared to literature data, which underscores the importance of preserving floodplain areas and maintaining natural lateral connectivity. High habitat patchiness mediated by lateral-surface connectivity appeared to promote benthic resources diversity, which in turn controls productivity of this floodplain-river system.
Fil: Zilli, Florencia Lucila. 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 An investigation of benthic invertebrates was conducted in the Paraná River (Argentina) floodplain to assess patterns of biomass and production in relation to lateral river connectivity. Environmental and invertebrate samples were collected monthly from April 2005 to March 2006 at sites with different lateral surface-connection. The investigated invertebrate assemblages were characterized by high biomass and high production. The key factor determining the benthic assemblages was river connectivity and indirectly, substrate characteristics, water transparency, and depth. With increasing river connectivity, biomass and production of oligochaetes, native bivalves, and dipterans decreased, whereas both variables increased for non-native bivalves, gastropods and ephemeropterans. Benthic assemblages of most of sites had an average similarity in the composition of about 50% along the study period, but the number of taxa contributing to the overall similarity was lower at sites located at long distance from the main channel than at sites located next to it. Potential production was high compared to literature data, which underscores the importance of preserving floodplain areas and maintaining natural lateral connectivity. High habitat patchiness mediated by lateral-surface connectivity appeared to promote benthic resources diversity, which in turn controls productivity of this floodplain-river system.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
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/11336/22367
Zilli, Florencia Lucila; Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina); Wiley VCH Verlag; International Review Of Hydrobiology; 98; 6; 8-2013; 284-293
1434-2944
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22367
identifier_str_mv Zilli, Florencia Lucila; Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina); Wiley VCH Verlag; International Review Of Hydrobiology; 98; 6; 8-2013; 284-293
1434-2944
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/iroh.201201610
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/iroh.201201610/abstract
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 Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
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 13.13397

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