Record nummer 2249976
Titel artikel Source tracking of Enterococcus moraviensis and E. haemoperoxidus
Auteur(s) Taučer-Kapteijn, M. ; Hoogenboezem, W. ; Hoogenboezem, R. ; Haas, S. de ; Medema, G.
Tijdschrifttitel Journal of water and health
Deel(Jaar)Nummer 15(2016)1
Paginering 41 - 49
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Publicatie type Artikel
Taal Engels
Toelichting (Engels) Enterococci were detected occasionally in 100 L samples of water abstracted from a shallow aquifer in a natural dune infiltration area for drinking water production. Enterococcus moraviensis was the species most frequently identified in these samples. Because there are no existing reports of faecal sources of E. moraviensis and the closely related E. hemoperoxidus, this study aimed to find such sources of these two species in the dunes. Faecal samples from various animal species living in the vicinity of abstraction wells, were analysed for enterococci on Slanetz and Bartley Agar. From these samples, enterococci isolates (1,386 in total) were subsequently identified using matrix assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry. E. moraviensis was found in the faeces of geese, foxes and rabbits. Also, E. haemoperoxidus was isolated from goose faeces. Using hierarchical clustering, the species composition of Enterococcus spp. isolated from abstracted water formed one cluster with the species composition found in geese droppings. A sanitary survey supported the indication that feral geese may provide a substantial faecal load in particular parts of this dune infiltration area, close to the water abstraction system. This study confirms the faecal origin of E. moraviensis and E. haemoperoxidus from specific animals, which strengthens their significance as faecal indicators.
Betrokken instanties Technische Universiteit Delft
KWR, Watercycle Research Institute
PWN Waterleidingbedrijf Noord-Holland
Erasmus Universiteit
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