| Journal: | Brazilian archives of biology and technology |
| Database: | PERIÓDICA |
| System number: | 000348460 |
| ISSN: | 1516-8913 |
| Authors: | Pedrozo, Catarina da Silva1 Rocha, Odete2 |
| Institutions: | 1Universidade Federal do Rio Grande do Sul, Departamento de Ecologia, Porto Alegre, Rio Grande do Sul. Brasil 2Universidade Federal de Sao Carlos, Departamento de Ecologia e Biologia Evolutiva, Sao Carlos, Sao Paulo. Brasil |
| Year: | 2007 |
| Season: | Jul |
| Volumen: | 50 |
| Number: | 4 |
| Pages: | 673-685 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The purpose of the present work was to evaluate the environmental quality of Marcelino, Pinguela, Peixoto, Palmital, Malvas and Do Passo lakes, interconnected by canals and located in the district of Osório, RS. In this context, 29 physical and chemical variables were analyzed with sampling carried out in January, May, July and October 1997 to verify the environmental quality of the system and the existence of a gradient of quality. Canonical Analysis was applied to the data of all environmental variables measured, and showed that the lakes had different characteristics as a consequence of the organic pollution received. Marcelino lake received continuous input of organic matter from the sewage treatment works in the town of Osório, whereas Peixoto, Pinguela, Palmital, Malvas and Do Passo lakes resembled other water bodies described in the region, not showing, so far, signs of degradation caused by the input of effluents. Principal Component Analysis selected environmental element were directly linked to organic pollution, that reflected sequential non-recent effects of contamination |
| Disciplines: | Biología, Geociencias |
| Keyword: | Ecología, Hidrología, Planicie costera, Calidad del agua, Variables ambientales, Características limnológicas |
| Keyword: | Biology, Earth sciences, Ecology, Hydrology, Coastal plains, Water quality, Environmental variables, Limnological characteristics |
| Full text: | Texto completo (Ver PDF) |
