Can a one-sampling campaign produce robust results for water quality monitoring? A case of study in itupararanga reservoir, SP, Brazil

Autor: Beghelli, Frederico Guilherme de Souza [UNESP], Pompêo, Marcelo Luiz Martins, Páscoli, Mônica, Lira, Vivian Silva [UNESP], de Lima, Renata, Moschini-Carlos, Viviane [UNESP]
Přispěvatelé: Universidade Estadual Paulista (Unesp), Universidade de São Paulo (USP), Universidade de Sorocaba – UNISO
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 2179-975X
Popis: Made available in DSpace on 2018-12-11T16:45:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01. Added 1 bitstream(s) on 2019-10-09T18:29:08Z : No. of bitstreams: 1 S2179-975X2016000100306.pdf: 1910836 bytes, checksum: 8727f04e6b69842e41e6ceeb641fc8ce (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Aim: The aim of this study was to conduct a rapid and comprehensive analysis of the reservoir using physical, chemical and biological variables comprising water and sediment as also to verify if a one-sampling campaign can produce information that is robust enough for monitoring purposes. Methods: One-sampling campaign was performed along the central body of Itupararanga reservoir comprising five sampling points. The following physico-chemical and biological variables were measured in each of them from water samples: temperature, pH, concentration of dissolved oxygen, electric conductivity, suspended matter, total nitrogen and phosphorus and fecal coliforms. A genotoxicity assay with Allium cepa was also performed with water from each one of the five sampling points. As a complement, the phytoplankton and benthic macroinvertebrates communities were also analyzed in the two most distant sampling points (P1 and P5). Results: Results indicate a scenario with eutrophication and toxicity. High concentrations of fecal coliforms were recorded and there is a worrying prevalence of cyanobacteria - potential toxin producers - in phytoplankton community. Benthic macroinvertebrates analysis suggests poor quality of the water and sediments. Genotoxicity tests suggest the presence of toxic substances along the waterbody. Conclusions: It is concluded that Itupararanga reservoir has water with poor quality that could be related to the land uses around the reservoir. The comprehensive approach performed here - where distinct sources of monitoring variables was considered - despite the rapid protocol (one campaign), was enough to respond to the distinct anthropic impacts received by the reservoir. Considering it, this approach is recommended as a rapid diagnostic tool. Universidade Estadual Paulista - UNESP, Avenida Três de Março, 511, Alto da Boa Vista Departamento de Ecologia Instituto de Biologia – IB Universidade de São Paulo – USP, Rua do Matão, Travessa 14, 321, Butantã Universidade de Sorocaba – UNISO, Rodovia Raposo Tavares, Km 92,5, Artura Universidade Estadual Paulista - UNESP, Avenida Três de Março, 511, Alto da Boa Vista FAPESP: 2012/11890-4 FAPESP: 2013/03494-4 FAPESP: 2013/08272-0
Databáze: OpenAIRE
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