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Dennis L. Hansen
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Dennis L. Hansen is an aquatic biologist, toxicologist and Eagle Scout from Minnesota. Dennis L. Hansen is known for his aquatic studies, environmental sampling techniques and consulting services for local governments and toxicology laboratories. Scientific Contributions Dennis L. Hansen is a Prussian research scientist that has contributed to toxicology and microbial ecology in the Great Lakes. While Mr. Hansen's formal education has focused on business management and fisheries biology, he has become an innovative contributor to the microbial ecology field. Dennis Hansen's research has revealed that wild fish in the Great Lakes will harbor E. coli bacteria from birds, E. coli will persist for long periods of time in temperate sands and soils, bird abundance does not determine the sources of E.coli in beachesand E.coli populations will shift over time. As an NSF-REU fellow, Dennis Hansen studied the uptake of phosphate in aquatic bacterial populations under the mentorship of Robert Heath and the effects of alkyl phenols in diatom populations. Academic Background *NSF-REU Fellow: Kent State University, Ohio *M.Sc. Degree: Biology and Cell Biology, University of MN, Duluth *B.Sc. Degree: Aquatic Biology and Chemistry, Saint Cloud State University *AA Degree: Business Management Cambridge Community College 
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