Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)

Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)

AIM: Our aim was to identify dissolved organic matter (DOM) main sources in environments of the Upper Paraná River floodplain and their seasonal and spatial variation. METHODS: Ultraviolet-visible and fluorescence spectroscopy were utilized. The samples were obtained from November 2007 to September 2008 in six lakes of the floodplain. RESULTS: DOM quality differs among environments and also between rainy and dry season. The environments connected with Paraná River showed a high variation on the allochthonous/autochthonous proportion. Aquatic macrophytes might represent an important contribution to DOM in Garças and Osmar lakes. CONCLUSIONS: In general, environments connected to Paraná River have a greater influence of autochthonous DOC, while the others are most influenced by allochthonous inputs.

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Main Authors: Teixeira,Mariana Carolina, Azevedo,Júlio César Rodrigues de, Pagioro,Thomaz Aurélio
Format: Digital revista
Language:English
Published: Associação Brasileira de Limnologia 2011
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000400002
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spelling oai:scielo:S2179-975X20110004000022012-08-06Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)Teixeira,Mariana CarolinaAzevedo,Júlio César Rodrigues dePagioro,Thomaz Aurélio DOM CDOM DOC spectroscopy floodplain AIM: Our aim was to identify dissolved organic matter (DOM) main sources in environments of the Upper Paraná River floodplain and their seasonal and spatial variation. METHODS: Ultraviolet-visible and fluorescence spectroscopy were utilized. The samples were obtained from November 2007 to September 2008 in six lakes of the floodplain. RESULTS: DOM quality differs among environments and also between rainy and dry season. The environments connected with Paraná River showed a high variation on the allochthonous/autochthonous proportion. Aquatic macrophytes might represent an important contribution to DOM in Garças and Osmar lakes. CONCLUSIONS: In general, environments connected to Paraná River have a greater influence of autochthonous DOC, while the others are most influenced by allochthonous inputs.info:eu-repo/semantics/openAccessAssociação Brasileira de LimnologiaActa Limnologica Brasiliensia v.23 n.4 20112011-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000400002en10.1590/S2179-975X2012005000011
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Teixeira,Mariana Carolina
Azevedo,Júlio César Rodrigues de
Pagioro,Thomaz Aurélio
spellingShingle Teixeira,Mariana Carolina
Azevedo,Júlio César Rodrigues de
Pagioro,Thomaz Aurélio
Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)
author_facet Teixeira,Mariana Carolina
Azevedo,Júlio César Rodrigues de
Pagioro,Thomaz Aurélio
author_sort Teixeira,Mariana Carolina
title Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)
title_short Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)
title_full Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)
title_fullStr Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)
title_full_unstemmed Spatial and seasonal distribution of chromophoric dissolved organic matter in the Upper Paraná River floodplain environments ( Brazil)
title_sort spatial and seasonal distribution of chromophoric dissolved organic matter in the upper paraná river floodplain environments ( brazil)
description AIM: Our aim was to identify dissolved organic matter (DOM) main sources in environments of the Upper Paraná River floodplain and their seasonal and spatial variation. METHODS: Ultraviolet-visible and fluorescence spectroscopy were utilized. The samples were obtained from November 2007 to September 2008 in six lakes of the floodplain. RESULTS: DOM quality differs among environments and also between rainy and dry season. The environments connected with Paraná River showed a high variation on the allochthonous/autochthonous proportion. Aquatic macrophytes might represent an important contribution to DOM in Garças and Osmar lakes. CONCLUSIONS: In general, environments connected to Paraná River have a greater influence of autochthonous DOC, while the others are most influenced by allochthonous inputs.
publisher Associação Brasileira de Limnologia
publishDate 2011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000400002
work_keys_str_mv AT teixeiramarianacarolina spatialandseasonaldistributionofchromophoricdissolvedorganicmatterintheupperparanariverfloodplainenvironmentsbrazil
AT azevedojuliocesarrodriguesde spatialandseasonaldistributionofchromophoricdissolvedorganicmatterintheupperparanariverfloodplainenvironmentsbrazil
AT pagiorothomazaurelio spatialandseasonaldistributionofchromophoricdissolvedorganicmatterintheupperparanariverfloodplainenvironmentsbrazil
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