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Sources and Impacts of "Naturalized" Escherichia coli in Coastal Environments

This project seeks to determine whether E. coli bacteria   (Escherichia coli), an indicator of fecal pollution, comes from   humans or from sediments that erode into the Duluth-Superior harbor   and Lake Superior.  Although sewage or treated effluents are often   blamed as sources of E. coli, many of these bacteria filter into   aquatic environments from livestock in agricultural areas, warm-  blooded animals in natural ecosystems, as well as from soils and   sediments. As a result, the extent of human influences on coastal   ecosystems and health risks may be over-estimated. Researchers   will look at whether E. coli released into natural environments from   soils and sediments survive and persist, and will identify what   factors might influence their survival and reproduction.  Using DNA   fingerprinting, they hope to build on a previous Sea Grant project   by identifying the original sources of E. coli found in the   sediment, soil and nearshore environments of Lake Superior and to   estimate the impact this has on fecal coliform measurements in the   lake and harbor. Results will be useful to regional wastewater   plant operators and government agencies both locally and in other   coastal regions.

Status
In progress
Type
Project
Start Date
End Date
Researchers
Michael SadowskyPrincipal Investigator
Associated with 6 projects
Randall HicksResearcher
Associated with 6 projects
Agencies
Minnesota Sea Grant College Program $ 100,000.00USDEstimates

Funding 30 projects for a total of $2,568,917.00
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Organism
Processes
Treatment / Manufacturing Processes
Land Use and Habitat
Shoreline
Lake Basin Connecting Channels
Lake Superior
State Province
Minnesota
Annex Numbers
Pollution from Non-Point Sources
Research & Development
Annex 17
Control technologies for treatment of municipal and industrial effluents/emissions
General
Annex
  • Annex Numbers
    Annex Numbers
    Pollution from Non-Point Sources
    Research & Development
  • Annex 17
    Annex 17
    Control technologies for treatment of municipal and industrial effluents/emissions

The Great Lakes - St. Lawrence Research Inventory is an
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up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.