Variação espacial do grau de trofia e da biomassa fitoplanctônica no reservatório de Itupararanga (São Paulo, Brasil)
Nowadays the Brazilian reservoirs has suffered great pressure due to increasing demand for water for diverse purposes, being one of the largest eutrophication problems caused by man. The Itupararanga reservoir provides environmental services to more than one million people and is one of the main sou...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.unesp.br:11449/123421 |
| Acceso en línea: | http://www.periodicos.rc.biblioteca.unesp.br/index.php/holos/article/view/5632 http://hdl.handle.net/11449/123421 |
| Access Level: | acceso abierto |
| Palabra clave: | represa de Itupararanga fitoplâncton biomassa Trofia Nutrientes CONAMA Reservoir Itupararanga Trophic status Nutrient |
| Sumario: | Nowadays the Brazilian reservoirs has suffered great pressure due to increasing demand for water for diverse purposes, being one of the largest eutrophication problems caused by man. The Itupararanga reservoir provides environmental services to more than one million people and is one of the main sources of the Sorocaba River basin and middle Tietê. Thus this study aimed to determine the spatial variability of the trophic level and phytoplankton biomass in the reservoir, as well as the concentrations of nutrients and also check your environment according to CONAMA 357/2005 (BRASIL, 2005). For this, a collection that was conducted in six sampling stations and the measures of pH, conductivity, dissolved oxygen, water temperature, water transparency, total phosphorus, total phosphorus, dissolved nitrite, nitrate, chlorophyll-a and sediment size analysis . The results indicated that there was no spatial variation of the degree of trophy in the Itupararanga reservoir, but there was spatial variation of nutrient concentrations and chlorophyll-a, corroborating theoretical models of reservoir compartmentalization. |
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