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Evaluation of Avian Waste and Bird Counts as Predicators ofEscherichia coli Contamination at Door County, Wisconsin Beaches

Waterfowl have been suggested as a primary source of fecal   contamination at many beaches, but techniques to "prove"   contaminating microbes are of avian origin are mostly   unsubstantiated. Researchers often rely on bird counts to measure  the impact of waterfowl on beach health. Since waterfowl populations   at Door County, Wisconsin (USA) beaches are transitory, this study   focused on enumeration of avian waste material along beach   transects, rather than on once per day "snapshot" bird counts.   Escherichia coli (E. coli) concentration in beach water was not   correlated with avian waste counts at the ten beaches studied in   2  4 or the 13 studied in 2  5 (rural to semi-urban). Bird counts   correlated with E. coli concentrations in beach water at 3 % of the   sample sites in 2  4 and at only one site in 2  5. During the 2  4   swimming season avian waste counts correlated with bird counts at   only one beach and there was no correlation in 2  5. These  results indicate that neither avian waste enumeration nor bird   counts can successfully be used to predict microbial contamination   of recreational water at selected Great Lakes beaches.    (microbial source tracking); (MST); (bacterial source tracking);   (BST); (beach closures); (beach closure); (beach closings); (beach   closing)

Status
In progress
Type
Project
Start Date
End Date
Researchers
Greg KleinheinzPrincipal Investigator
Associated with 2 projects
Colleen McDermottResearcher
Associated with 2 projects
Agencies
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Cellular
Lake Basin Connecting Channels
Lake Michigan
State Province
Wisconsin
Resource Being Monitored
Human Health
Beneficial Use Impairment Assessments
Beach Closings
Annex Numbers
Pollution from Non-Point Sources
Remedial Action Plans and Lakewide Management Plans
Research & Development
Annex 17
Mass transfer of pollutants between GL Basin Ecosystem components
General
Annex
  • Annex Numbers
    Annex Numbers
    Pollution from Non-Point Sources
    Remedial Action Plans and Lakewide Management Plans
    Research & Development
  • Annex 17
    Annex 17
    Mass transfer of pollutants between GL Basin Ecosystem components

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