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dc.contributor.author
Zilli, Florencia Lucila
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dc.date.available
2017-08-14T20:28:39Z
dc.date.issued
2013-08
dc.identifier.citation
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
dc.identifier.issn
1434-2944
dc.identifier.uri
http://hdl.handle.net/11336/22367
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley VCH Verlag
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Benthic Biomass
dc.subject
Connectivity
dc.subject
Floodplain Environments
dc.subject
Productivity
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Distribution of benthic invertebrate biomass and secondary production in relation to floodplain connectivity in a large river system (Paraná River, Argentina)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-28T16:25:00Z
dc.journal.volume
98
dc.journal.number
6
dc.journal.pagination
284-293
dc.journal.pais
Alemania
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dc.description.fil
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
dc.journal.title
International Review Of Hydrobiology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/iroh.201201610
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/iroh.201201610/abstract
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