[beachnet] Another MST New article

Many thanks Murulee,

The attached report conducted with the UK 
regulators and government may be of interest, It 
wil be in a special edition of Water Research 
shortly, please do not circulate in this 'proof' format.

Best wishes

Dave

At 17:39 09/10/2009, Muruleedhara Byappanahalli wrote:

><http://www3.interscience.wiley.com/journal/118490255/home>Journal 
>of Applied Microbiology
><http://www3.interscience.wiley.com/journal/122637852/issue>Volume 
>107 Issue 5, Pages 1518 - 1527
>ORIGINAL ARTICLE
>Application of microbial source tracking methods 
>in a Gulf of Mexico field setting
>
>A. Korajkic, B.D. Badgley, M.J. Brownell and V.J. Harwood
>
>Department of Biology, University of South Florida, Tampa, FL, USA
>Correspondence to Valerie J. Harwood, Department 
>of Biology, University of South Florida, 4202 
>East Fowler Avenue, SCA 110, Tampa, FL 33620, 
>USA. E-mail: <mailto:vharwood at cas.usf.edu>vharwood at cas.usf.edu
>Copyright Journal compilation © 2009 The Society for Applied Microbiology
>
>KEYWORDS
>enterococci • environmental water • faecal • 
>faecal coliform • markers • microbial source tracking • water quality
>
>ABSTRACT
>Aims: Microbial water quality and possible human 
>sources of faecal pollution were assessed in a 
>Florida estuary that serves shellfishing and recreational activities.
>Methods and Results: Indicator organisms (IO), 
>including faecal coliforms, Escherichia coli and 
>enterococci, were quantified from marine and 
>river waters, sediments and oysters. Florida 
>recreational water standards were infrequently 
>exceeded (6–10% of samples); however, 
>shellfishing standards were more frequently 
>exceeded (28%). IO concentrations in oysters and 
>overlaying waters were significantly correlated, 
>but oyster and sediment IO concentrations were 
>uncorrelated. The human-associated esp gene of 
>Enterococcus faecium was detected in marine and 
>fresh waters at sites with suspected human 
>sewage contamination. Lagrangian drifters, used 
>to determine the pathways of bacterial transport 
>and deposition, suggested that sediment 
>deposition from the Ochlockonee River 
>contributes to frequent detection of esp at a Gulf of Mexico beach.
>Conclusions: These data indicate that human 
>faecal pollution affects water quality in 
>Wakulla County and that local topography and 
>hydrology play a role in bacterial transport and deposition.
>Significance and Impact of the Study: A 
>combination of IO enumeration, microbial source 
>tracking methods and regional hydrological study 
>can reliably inform regulatory agencies of IO 
>sources, improving risk assessment and pollution 
>mitigation in impaired waters.
>
>
>
>Murulee Byappanahalli, Ph. D.
>Research Microbiologist
>U.S. Geological Survey, Great Lakes Science Center
>Lake Michigan Ecological Research Station,
>1100 N. Mineral Springs Road
>Porter, Indiana 46304
>Phone: (219) 926-8336 ext. 421
>Fax:      (219) 929-5792
>E-mail: byappan at usgs.gov
>
>
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>*


David Kay
Professor of Environment and Health
River Basin Dynamics and Hydrology Research Group
and Centre for Research into Environment and Health
http://www.ies.aber.ac.uk/en/staff/subpages/research/101

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