Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)

We analyzed the influence of spatial and temporal variations in the physical and chemical properties of the water on the specific composition of the periphytic algae attached to wooden posts (epixylon) in a section of the low river Luján (Buenos Aires, Argentina) and a tributary, both of which were...

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Autores principales: Rodríguez, Patricia Laura, Pizarro, Haydee Norma, Maidana, Nora Irene
Publicado: 2006
Materias:
Argentina
Environmental factors
Epixylic algae
Lowland rivers
Pollution
alga
community dynamics
environmental factor
pollution effect
spatiotemporal analysis
water quality
Buenos Aires [Argentina]
South America
algae
Bacillariophyceae
Chlorophyta
Cyanobacteria
Euglenida
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01811568_v27_n1_p63_Rodriguez
http://hdl.handle.net/20.500.12110/paper_01811568_v27_n1_p63_Rodriguez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01811568_v27_n1_p63_Rodriguez
record_format dspace
spelling paper:paper_01811568_v27_n1_p63_Rodriguez2023-06-08T15:19:33Z Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina) Rodríguez, Patricia Laura Pizarro, Haydee Norma Maidana, Nora Irene Argentina Environmental factors Epixylic algae Lowland rivers Pollution alga community dynamics environmental factor pollution effect spatiotemporal analysis water quality Argentina Buenos Aires [Argentina] South America algae Bacillariophyceae Chlorophyta Cyanobacteria Euglenida We analyzed the influence of spatial and temporal variations in the physical and chemical properties of the water on the specific composition of the periphytic algae attached to wooden posts (epixylon) in a section of the low river Luján (Buenos Aires, Argentina) and a tributary, both of which were subject to varying degrees to wastewater. Algae and water samples were taken monthly from July 2000 to July 2001. During this period the river Luján and its tributary had very poor water quality and their physical and chemical characteristics were typical of polluted urban rivers. In terms of taxa richness, all sites showed a dominance of Bacillariophyceae, followed by Cyanobacteria, Chlorophyta and Euglenophyta. Algal taxa were typical of polluted rivers and some were adapted to desiccation due to strong fluctuations in the hydrological level of the river. The RDA (Redundancy Analysis) indicated that species composition and richness exhibited a stronger response to seasonal and spatial variability of the limnological characteristics of the system rather than to inputs of domestic and/or industrial pollutants. This result was most likely due to the entire epixylic communities from the low river Luján being composed of algae adapted to polluted watercourses with frequent peaks in pollutants. © 2006 Adac. Tous droits réservés. Fil:Rodríguez, P.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pizarro, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Maidana, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01811568_v27_n1_p63_Rodriguez http://hdl.handle.net/20.500.12110/paper_01811568_v27_n1_p63_Rodriguez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Environmental factors
Epixylic algae
Lowland rivers
Pollution
alga
community dynamics
environmental factor
pollution effect
spatiotemporal analysis
water quality
Argentina
Buenos Aires [Argentina]
South America
algae
Bacillariophyceae
Chlorophyta
Cyanobacteria
Euglenida
spellingShingle Argentina
Environmental factors
Epixylic algae
Lowland rivers
Pollution
alga
community dynamics
environmental factor
pollution effect
spatiotemporal analysis
water quality
Argentina
Buenos Aires [Argentina]
South America
algae
Bacillariophyceae
Chlorophyta
Cyanobacteria
Euglenida
Rodríguez, Patricia Laura
Pizarro, Haydee Norma
Maidana, Nora Irene
Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)
topic_facet Argentina
Environmental factors
Epixylic algae
Lowland rivers
Pollution
alga
community dynamics
environmental factor
pollution effect
spatiotemporal analysis
water quality
Argentina
Buenos Aires [Argentina]
South America
algae
Bacillariophyceae
Chlorophyta
Cyanobacteria
Euglenida
description We analyzed the influence of spatial and temporal variations in the physical and chemical properties of the water on the specific composition of the periphytic algae attached to wooden posts (epixylon) in a section of the low river Luján (Buenos Aires, Argentina) and a tributary, both of which were subject to varying degrees to wastewater. Algae and water samples were taken monthly from July 2000 to July 2001. During this period the river Luján and its tributary had very poor water quality and their physical and chemical characteristics were typical of polluted urban rivers. In terms of taxa richness, all sites showed a dominance of Bacillariophyceae, followed by Cyanobacteria, Chlorophyta and Euglenophyta. Algal taxa were typical of polluted rivers and some were adapted to desiccation due to strong fluctuations in the hydrological level of the river. The RDA (Redundancy Analysis) indicated that species composition and richness exhibited a stronger response to seasonal and spatial variability of the limnological characteristics of the system rather than to inputs of domestic and/or industrial pollutants. This result was most likely due to the entire epixylic communities from the low river Luján being composed of algae adapted to polluted watercourses with frequent peaks in pollutants. © 2006 Adac. Tous droits réservés.
author Rodríguez, Patricia Laura
Pizarro, Haydee Norma
Maidana, Nora Irene
author_facet Rodríguez, Patricia Laura
Pizarro, Haydee Norma
Maidana, Nora Irene
author_sort Rodríguez, Patricia Laura
title Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)
title_short Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)
title_full Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)
title_fullStr Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)
title_full_unstemmed Epixylic algae from a polluted lowland river of Buenos Aires province (Argentina)
title_sort epixylic algae from a polluted lowland river of buenos aires province (argentina)
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01811568_v27_n1_p63_Rodriguez
http://hdl.handle.net/20.500.12110/paper_01811568_v27_n1_p63_Rodriguez
work_keys_str_mv AT rodriguezpatricialaura epixylicalgaefromapollutedlowlandriverofbuenosairesprovinceargentina
AT pizarrohaydeenorma epixylicalgaefromapollutedlowlandriverofbuenosairesprovinceargentina
AT maidananorairene epixylicalgaefromapollutedlowlandriverofbuenosairesprovinceargentina
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