Faecal-indicator bacteria and sedimentary processes in estuarine mudflats (Seine, France)
作者： Thierry Berthe , Aurélie Touron , Julie Leloup , Julien Deloffre , Fabienne Petit
DOI: 10.1016/J.MARPOLBUL.2007.10.013
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摘要: Over a three-year period, quantification of faecal indicators and the molecular detection Escherichia coli Salmonella were monitored in sediments from three contrasting mudflats Seine estuary (France). The elevation mudflat surface was concurrently using high-resolution altimeter. During period study, estuarine areas deposition for faecal-indicator bacteria mainly controlled by sedimentary processes. In intertidal freshwater subtidal mudflats, highest abundances counted during depositional period. Maximum levels observed periods high flow: thermotolerant coliforms: 3.9 × 104 cfu cm−2, enterococci: 1.2 Clostridium perfringens spores: 9.8 105 spores cm−2. Loss culturability enteric sediment microcosms demonstrated remediatory capacity even if they might be secondary source bacteria-forming to water column through erosion resuspension events.
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