Application of a microbial source tracking based on bacterial and chemical markers in headwater and coastal catchments

Autor: Emilie Jardé, Julien Chevé, Patrice Petitjean, Emmanuelle Quenot, Solen Lozach, Michèle Gourmelon, O. Solecki, Laurent Jeanneau, Loic Charles Pierre Harrault
Přispěvatelé: Géosciences Rennes (GR), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Department of Archaeology, University of Aberdeen, Institut Français de Recherche pour l'Exploitation de la Mer - Brest (IFREMER Centre de Bretagne), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire de Génétique et Pathologie des Mollusques Marins - Ifremer (SG2M-LGPMM), Fonds Unique Interministériel, Conseil Régional de Bretagne, 4163, European Regional Development Fund, County Council of Morbihan, 092906203, County Council of Finistère and Brest Métropole Océane, Dubigeon, Isabelle, Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Santé Environnement et Microbiologie (LSEM), Santé, Génétique et Microbiologie des Mollusques (SGMM), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
0301 basic medicine
Rainfall
Veterinary medicine
Environmental Engineering
Swine
Microorganism
030106 microbiology
Indicator bacteria
Host-associated Bacteroidales markers
010501 environmental sciences
01 natural sciences
GEOF
Feces
03 medical and health sciences
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry
Water Quality
[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry
Escherichia coli
Animals
Humans
Environmental Chemistry
Fecal contamination
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology
Waste Management and Disposal
0105 earth and related environmental sciences
biology
Bacteroidetes
Ecology
Water Pollution
Contamination
biology.organism_classification
Pollution
MST toolbox
6. Clean water
Bacteroidales
Coliform bacteria
Fecal coliform
13. Climate action
Indicator species
Fecal stanols
[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology
Mitigation actions
Cattle
Water quality
Water Microbiology
Environmental Monitoring
Zdroj: Science of the Total Environment
Science of the Total Environment, Elsevier, 2018, 610-611, pp.55-63. ⟨10.1016/j.scitotenv.2017.07.235⟩
Science of the Total Environment, 2018, 610-611, pp.55-63. ⟨10.1016/j.scitotenv.2017.07.235⟩
Science Of The Total Environment (0048-9697) (Elsevier Science Bv), 2018-01, Vol. 610-611, P. 55-63
ISSN: 0048-9697
1879-1026
Popis: [Departement_IRSTEA]Ecotechnologies [TR1_IRSTEA]TED; International audience; This study identified sources of fecal contamination in three different French headwater and coastal catchments (the Justiçou, Pen an Traon, and La Fresnaye) using a combination of microbial source tracking tools. The tools included bacterial markers (three host-associated Bacteroidales) and chemical markers (six fecal stanols), which were monitored monthly over one or two years in addition to fecal indicator bacteria. 168 of the 240 freshwater and marine water samples had Escherichia coli (E. coli) or enterococci concentrations higher than “excellent” European water quality threshold. In the three catchments, the results suggested that the fecal contamination appeared to be primarily from an animal origin and particularly from a bovine origin in 52% (Rum2Bac) and 46% (Bstanol) of the samples and to a lesser extent from a porcine origin in 19% (Pig2Bac) and 21% (Pstanol) of the samples. Our results suggested a human fecal contamination in 56% (HF183) and 32% (Hstanol) of the samples. Rainfall also impacted the source identification of microbial contamination. In general, these findings could inform effective implementation of microbial source tracking strategies, specifically that the location of sampling points must include variability at the landscape scale.
Databáze: OpenAIRE
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