Escherichia coli in the surface waters and in oysters of two cultivations of Guaratuba Bay - Paraná - Brazil



Título del documento: Escherichia coli in the surface waters and in oysters of two cultivations of Guaratuba Bay - Paraná - Brazil
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000365577
ISSN: 1516-8913
Autors: 1
1
1
Institucions: 1Universidade Federal do Parana, Centro de Estudos do Mar, Pontal do Parana, Parana. Brasil
Any:
Període: Mar-Abr
Volum: 56
Número: 2
Paginació: 319-326
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The present work aimed to evaluate the contamination of Escherichia coli in the surface waters and oysters from two cultivations of Guaratuba Bay and to analyze the correlation patterns among the concentrations of E. coli in the waters and in the oysters with the local physical-chemical parameters. Samples were collected in the spring of 2007 and summer, autumn and winter of 2008 from two points of the bay (internal point and external point). From each cultivation and sampling period, 18 oysters were collected. The samples of surface water were collected for the measurement of physical-chemical parameters (pH, salinity, temperature, dissolved oxygen, seston, particulate organic matter) and quantification of E. coli. The surface water analyzed in the summer presented the largest most probable number of E. coli, (1,659.22 MPN.100 ml-1 and 958,55 MPN.100 ml-1 at external and internal points, respectively. The oysters from the internal point presented more E. coli, except in the winter sampling. The largest contamination was observed in the spring, at the internal point (979,78 MPN.g-1). The Principal Components Analysis showed direct correlation among the amount of E. coli in the oysters and in the surface water
Disciplines Biología,
Medicina veterinaria y zootecnia
Paraules clau: Moluscos,
Zootecnia,
Microbiología,
Cultivo de ostras,
Contaminación microbiana,
Aguas superficiales,
Escherichia coli
Keyword: Biology,
Veterinary medicine and animal husbandry,
Molluscs,
Animal husbandry,
Microbiology,
Oyster culture,
Microbial pollution,
Surface waters,
Escherichia coli
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