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Abstract:

The phytoplankton of the Matanza-Riachuelo river (Buenos Aires, Argentina) was studied for a period of 15 months together with different physical and chemical variables, along an increasingly eutrophic in character downstream. 281 taxa were recorded within a seasonal succession, among these 49 percent were euglenophyta, 25 percent bacillariophyta, 15 percent chlorophyta and 10 percent cyanophyta. Multivariate procedures included cluster analyses and ordination by PCA of both species and samples, and stepwise multiple regression analyses were employed to assess the impact of the pollution on the phytoplankton. The effect of the alteration was different in each studied site. With one exception, the changes in the community structure described herein involved modifications of the basic species composition. According to the species present, it was deduced that the main pollutant was the high concentration of organic matter. Results of the Matanza-Riachuelo, Reconquista, and Luján Rivers studies are further discussed. © 1995 Kluwer Academic Publishers.

Registro:

Documento: Artículo
Título:Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina
Autor:Conforti, V.; Alberghina, J.; Urda, E.G.
Filiación:Departmento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pab. II, Buenos Aires, 1428, Argentina
Palabras clave:Argentina; community structure; Matanza-Riachuelo river; phytoplankton; pollution; South America; eutrophication; phytoplankton; species composition; Argentina, Buenos Aires, Matanza-Riachuelo River
Año:1995
Volumen:4
Número:1
Página de inicio:59
Página de fin:75
DOI: http://dx.doi.org/10.1007/BF00043344
Título revista:Journal of Aquatic Ecosystem Health
Título revista abreviado:J Aquat Ecosyst Stress Recov
ISSN:09251014
CODEN:JAQHE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09251014_v4_n1_p59_Conforti

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Citas:

---------- APA ----------
Conforti, V., Alberghina, J. & Urda, E.G. (1995) . Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina. Journal of Aquatic Ecosystem Health, 4(1), 59-75.
http://dx.doi.org/10.1007/BF00043344
---------- CHICAGO ----------
Conforti, V., Alberghina, J., Urda, E.G. "Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina" . Journal of Aquatic Ecosystem Health 4, no. 1 (1995) : 59-75.
http://dx.doi.org/10.1007/BF00043344
---------- MLA ----------
Conforti, V., Alberghina, J., Urda, E.G. "Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina" . Journal of Aquatic Ecosystem Health, vol. 4, no. 1, 1995, pp. 59-75.
http://dx.doi.org/10.1007/BF00043344
---------- VANCOUVER ----------
Conforti, V., Alberghina, J., Urda, E.G. Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina. J Aquat Ecosyst Stress Recov. 1995;4(1):59-75.
http://dx.doi.org/10.1007/BF00043344