Water quality assessment in piracicamirim creek upstream and downstream a sugar and ethanol industry through toxicity tests with cladocerans

Brazilian Archives of Biology and Technology

Rafael Grossi Botelho²  Luís Machado Neto²  Ricardo Alves De Olinda¹  Carlos Tadeu Dias²  Valdemar Luiz Tornisielo² 

[1] ,Universidade de São PauloPiracicaba SP ,Brasil

关键词: Daphnia magna;    Ceriodaphnia dubia;    Ceriodaphnia silvestrii;    water quality;   

DOI  :  10.1590/S1516-89132012000400020

来源: SciELO

【 摘 要 】

An environmental impact study was conducted to determine the Piracicamirim's creek water quality in order to assess the influence of effluents from a sugar industry in this water body. For this, toxicity tests were performed with a water sample upstream and downstream the industry using the microcrustaceans Daphnia magna, Ceriodaphnia dubia and Ceriodaphnia silvestrii as test organisms, as well as physical and chemical analysis of water. Results showed that physical and chemical parameters did not change during the sampling period, except for the dissolved oxygen. No toxicity was observed for D. magna and reproduction of C. dubia and C. silvestrii in both sampling points. Thus, the industry was not negatively impacting the quality of this water body.

【 授权许可】

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