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Filtering by: Advisor Harding, Anna Remove constraint Advisor: Harding, Anna Subject Water quality biological assessment -- Oregon Remove constraint Subject: Water quality biological assessment -- Oregon

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  • Evaluation of bacterial community indicators of stream sanitary and ecological condition

    Creator:
    Bracken, Caragwen L.
    Abstract:
    The focus of this research was to develop bacterial community indicators of stream sanitary and ecological condition. The first study compared substrate utilization patterns between centrifuged and uncentrifuged split samples. We found a shift in the relative proportion of each group of bacteria following centrifugation, with a marked increased in...
    Resource Type:
    Dissertation
    Full Text:
    Cooperative Training Grant, sponsored by Charles Hendricks and Anna Harding. I would like to thank Charles

  • Evaluating microbial indicators of environmental condition in Oregon rivers

    Creator:
    Pennington, Alan Travis
    Abstract:
    Traditional public health bacterial indicators of water quality and the Biolog® system were evaluated to compare their response to other indicators of stream condition with the state of Oregon and between ecoregions (Coast Range, Willamette Valley, Cascades, and Eastern Oregon). Forty-three randomly selected Oregon rivers were sampled during the summer...
    Resource Type:
    Masters Thesis
    Full Text:
    like to thank Dr. Anna Harding for her encouragement throughout the year and her assistance in the

  • Preliminary investigation of microbial indicators in the assessment of Oregon streams

    Creator:
    Campbell, Heidi M. K.
    Abstract:
    The Environmental Monitoring and Assessment Program (EMAP) site selection protocol was used to generate a random sample of streams throughout the state of Oregon. One hundred and forty-six selected streams were sampled during the summer, low-flow period of 1997. Traditional microbial public health indicators, including heterotrophic plate counts (HPC), total...
    Resource Type:
    Masters Thesis
    Full Text:
    Investigation of Microbial Indicators in the Assessment of Oregon Streams. Abstract approved: Anna K. Harding

  • Investigation of the presence and change over time of water quality parameters in selected natural swimming areas in Oregon

    Creator:
    Van Ess, Erica
    Abstract:
    Few studies, and none in Oregon, have examined the presence and change of water quality parameters over time in popular natural swimming areas. This information is necessary to better understand water quality and risk of illness from either fecal contamination or cross-infection from other swimmers. The purpose of this study...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENTS I would like to thank Dr. Anna Harding for all of her guidance throughout this project and for