Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina
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 perce...
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1995
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09251014_v4_n1_p59_Conforti http://hdl.handle.net/20.500.12110/paper_09251014_v4_n1_p59_Conforti |
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paper:paper_09251014_v4_n1_p59_Conforti2023-06-08T15:51:12Z Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina Conforti, Visitación Teresa Dora Alberghina, Josefina Silvia Argentina community structure Matanza-Riachuelo river phytoplankton pollution South America eutrophication phytoplankton species composition Argentina, Buenos Aires, Matanza-Riachuelo River 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. Fil:Conforti, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alberghina, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1995 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09251014_v4_n1_p59_Conforti http://hdl.handle.net/20.500.12110/paper_09251014_v4_n1_p59_Conforti |
| 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 community structure Matanza-Riachuelo river phytoplankton pollution South America eutrophication phytoplankton species composition Argentina, Buenos Aires, Matanza-Riachuelo River |
| spellingShingle |
Argentina community structure Matanza-Riachuelo river phytoplankton pollution South America eutrophication phytoplankton species composition Argentina, Buenos Aires, Matanza-Riachuelo River Conforti, Visitación Teresa Dora Alberghina, Josefina Silvia Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina |
| topic_facet |
Argentina community structure Matanza-Riachuelo river phytoplankton pollution South America eutrophication phytoplankton species composition Argentina, Buenos Aires, Matanza-Riachuelo River |
| description |
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. |
| author |
Conforti, Visitación Teresa Dora Alberghina, Josefina Silvia |
| author_facet |
Conforti, Visitación Teresa Dora Alberghina, Josefina Silvia |
| author_sort |
Conforti, Visitación Teresa Dora |
| title |
Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina |
| title_short |
Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina |
| title_full |
Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina |
| title_fullStr |
Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina |
| title_full_unstemmed |
Structural changes and dynamics of the phytoplankton along a highly polluted lowland river of Argentina |
| title_sort |
structural changes and dynamics of the phytoplankton along a highly polluted lowland river of argentina |
| publishDate |
1995 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09251014_v4_n1_p59_Conforti http://hdl.handle.net/20.500.12110/paper_09251014_v4_n1_p59_Conforti |
| work_keys_str_mv |
AT confortivisitacionteresadora structuralchangesanddynamicsofthephytoplanktonalongahighlypollutedlowlandriverofargentina AT alberghinajosefinasilvia structuralchangesanddynamicsofthephytoplanktonalongahighlypollutedlowlandriverofargentina |
| _version_ |
1768546122551263232 |