Microbiology Water Quality of Three Coastal Beaches at Madeira Island, Atlantic Ocean
Received Date: Apr 15, 2014 / Accepted Date: Jul 26, 2014 / Published Date: Aug 06, 2014
The microbial water quality of three different coastal beaches located in the south coast of Madeira Island, were monitored from May to December 2005 (Formosa and São Roque), and from October 2006 to June 2007 (Gavinas). Total and fecal coliforms and enterococci counts in two of the beach sites, showed a seasonal dependence, with highest values in autumn and winter suggesting a positive relationship with rainfall and a negative relationship with temperature. Of the three sampled beaches, Formosa beach showed the highest water quality and São Roque beach the poorest water quality. Impacted freshwater discharges and deficient water circulation in this recreational zone could be the causes for the lower quality of this beach. However beach rating was shown to be dependent on the indicator microbe chosen. The results obtained emphasized the need of differential sampling strategies according to beach specific characteristics, when assessing the water quality, as well as further sampling taking into consideration other variables, such as time of the day, tide, and microbial analysis of the freshwater inputs.
Keywords: Enterococci; Fecal coliforms; Madeira Island; Microbial indicators; Water quality
Citation: Costaa G , Caladob G, Errab F, Freitasa M, Krehla K, Pinheiro de Carvalhoc MAA (2014) Microbiology Water Quality of Three Coastal Beaches at Madeira Island, Atlantic Ocean. Hydrol Current Res 5: 175. Doi: 10.4172/2157-7587.1000175
Copyright: © 2014 Costaa G, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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