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Faecal indicators and pathogens in selected New Zealand waterfowl

Faecal indicators and pathogens in selected New Zealand waterfowl Abstract Freshly excreted droppings from Canada geese (n=80), black swans (n=80), ducks (n=80) and gulls (n=80) were collected from sites around New Zealand. The droppings were enumerated for Escherichia coli, enterococci and Salmonella spp., and for the presence/absence of Cryptosporidium spp. Overall prevalence of E. coli and enterococci in samples was 95% and 94%, respectively. Cryptosporidium spp. was detected in 2% of the samples, whereas no Salmonella spp. were detected in the survey. Preliminary estimates of daily microbial outputs suggest that ducks will produce the highest loadings of E. coli and enterococci per bird, whereas Canada geese will produce the highest loadings of Campylobacter spp. per bird. This study provides the first set of indicator and pathogen counts for one of the largest sources of diffuse faecal contamination of natural waters in New Zealand. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png New Zealand Journal of Marine & Freshwater Research Taylor & Francis

Faecal indicators and pathogens in selected New Zealand waterfowl

10 pages

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References (42)

Publisher
Taylor & Francis
Copyright
Copyright The Royal Society of New Zealand
ISSN
1175-8805
eISSN
0028-8330
DOI
10.1080/00288330.2011.578653
Publisher site
See Article on Publisher Site

Abstract

Abstract Freshly excreted droppings from Canada geese (n=80), black swans (n=80), ducks (n=80) and gulls (n=80) were collected from sites around New Zealand. The droppings were enumerated for Escherichia coli, enterococci and Salmonella spp., and for the presence/absence of Cryptosporidium spp. Overall prevalence of E. coli and enterococci in samples was 95% and 94%, respectively. Cryptosporidium spp. was detected in 2% of the samples, whereas no Salmonella spp. were detected in the survey. Preliminary estimates of daily microbial outputs suggest that ducks will produce the highest loadings of E. coli and enterococci per bird, whereas Canada geese will produce the highest loadings of Campylobacter spp. per bird. This study provides the first set of indicator and pathogen counts for one of the largest sources of diffuse faecal contamination of natural waters in New Zealand.

Journal

New Zealand Journal of Marine & Freshwater ResearchTaylor & Francis

Published: Dec 1, 2011

Keywords: waterfowl; E. coli; enterococci; Campylobacter; Salmonella; Cryptosporidium; water quality

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