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Acta Biológica Colombiana
versão impressa ISSN 0120-548X
Resumo
NARVAEZ, SILVIA; GOMEZ, MARTHA e ACOSTA, JORGE. Fecals Coliforms in Waters of Coastal and Palafiticos Populations of Ciénaga Grande de Santa Marta, Colombia. Acta biol.Colomb. [online]. 2008, vol.13, n.3, pp.111-120. ISSN 0120-548X.
The coastal lagoon system most important and biggest of Colombia and the largest in the Caribbean is the Cienaga Grande of Santa Marta. In their territory, seven populations lacking of an appropriate sanitation system, that pour their waste directly without any treatment to the cienaga. Keeping in mind the importance of this body of water and in order to know their sanitary quality the concentrations of thermotolerant coliforms were determined in two coastal (Tasajera and Isla del Rosario) and three palafitics populations (Buenavista, Nueva Venecia and Trojas de Cataca) during the period 2004-2007. Additionally, pH, temperature, salinity and oxygen measurements were carried out in each station. The highest coliforms concentrations were found in Trojas de Cataca, in the dry season more each year (7,800-9,000 MPN/100ml) and the lowest level in Buenavista station (2-1,100 MPN/100mL). The behavior pattern of Coliform densities in coastal populations was similar in the time and there was no direct relationship between physicochemical variables and Coliform group. It is important take care and watch over the estuary quality, taking into account that constitutes a potential risk source for economic activities development of the area and for the residents health.
Palavras-chave : Fecal contamination; Estuary; Water quality; Coliform.