| Abstract: | Reducing fecal indicator bacteria, such as Escherichia coli (E. coli), in streams is important for many downstream areas. E. coli concentrations within streams may be reduced by intervening ponds or wetlands through a number of physical and biological means. A section of Dunes Creek, a small coastal stream of southern Lake Michigan, was impounded and studied for 30??months from pre-through post-construction of the experimental pond. E. coli reduction became more predictable and effective with pond age. E. coli followed the hydrograph and increased several-fold during both rainfall and snowmelt events. Seasonally, the pond was more effective at reducing E. coli during summer than winter. Late summer, non-solar reduction or inactivation of E. coli in the pond was estimated at 72% and solar inactivation at 26%. E. coli DNA fingerprinting demonstrated that the winter population was genetically more homogeneous than the summer population. Detection of FRNA coliphages suggests that there was fecal contamination during heavy rain events. An understanding of how environmental factors interact with E. coli populations is important for assessing anticipated contaminant loading and the reduction of indicator bacteria in downstream reaches. ?? 2007. |
| Genre: | Article |
| ProdID: | 70033694 |
| Citation Author: | Whitman, R. L.; Przybyla-Kelly, K.; Shively, D. A.; Nevers, M. B.; Byappanahalli, M. N. |
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| Citation End Page: | 455 |
| Citation Issue: | 2-3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science of the Total Environment |
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| Citation Number Of Pages: | 8 |
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| Citation Search Results Text: | Sunlight, season, snowmelt, storm, and source affect E. coli populations in an artificially ponded stream; 2008; Article; Journal; Science of the Total Environment; Whitman, R. L.; Przybyla-Kelly, K.; Shively, D. A.; Nevers, M. B.; Byappanahalli, M. N. |
| Citation Start Page: | 448 |
| Citation Volume: | 390 |
| Citation Year: | 2008 |
| Type: | citation/reference |
| Text: | Sunlight, season, snowmelt, storm, and source affect E. coli populations in an artificially ponded stream; 2008; Article; Journal; Science of the Total Environment; Whitman, R. L.; Przybyla-Kelly, K.; Shively, D. A.; Nevers, M. B.; Byappanahalli, M. N. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1016/j.scitotenv.2007.10.014 |
| Date Other: | Tue, 1 Jan 2008 00:00 -0600 |
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