[A study to assess the microbial contamination of Mya arenaria clams from the north shore of the St Lawrence River estuary, (Québec, Canada)]. / Etude de la contamination microbienne des myes (Mya arenaria) de la rive nord de l'estuaire maritime du fleuve Saint-Laurent (Québec, Canada)
Can J Microbiol
; 52(10): 984-91, 2006 Oct.
Article
em Fr
| MEDLINE
| ID: mdl-17110967
ABSTRACT
The aims of the present study were to assess the microbial quality of Mya arenaria clams from the north shore of the St. Lawrence River estuary and to validate various microbial indicator microorganisms of bivalve mollusks contamination. Clams were collected from nine sites, including four harvesting sites closed by virtue of the Canadian Shellfish Sanitation Program (CSSP). Six contamination indicators (fecal coliforms, somatic coliphages, F-specific coliphages, fecal streptococci, Clostridium perfringens, and Escherichia coli) and four pathogens (Campylobacter sp., Cryptosporidium parvum, Giardia sp., and Salmonella sp.) were identified in the clams. Indicators sensibility, specificity and predictive values with respect to the presence of pathogens were calculated. Pathogenic microorganisms detection frequency in clams was important (92%). Globally, pathogens tend to be less frequently detected in opened harvesting sites (p = 0.086). Although the assessed indicators were not perfect, when F-specific coliphages are associated with E. coli or fecal coliforms, a good sensibility (62%-64%) and good positive predictive value (88%) with respect to the investigated pathogens are obtained.
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Bases de dados:
MEDLINE
Assunto principal:
Bactérias
/
Rios
/
Mya
/
Eucariotos
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
País/Região como assunto:
America do norte
Idioma:
Fr
Revista:
Can J Microbiol
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Canadá