Seasonal distribution of the fish pathogen Aeromonas hydrophila and serological evidence of Aeromonas hydrophila infection in fish populations of the White River, Muncie, Indiana

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dc.contributor.advisor Warnes, Carl E. en_US
dc.contributor.author Ellis, Mark en_US
dc.coverage.spatial n-us-in en_US
dc.date.accessioned 2011-06-03T19:33:23Z
dc.date.available 2011-06-03T19:33:23Z
dc.date.created 1982 en_US
dc.date.issued 1982
dc.identifier LD2489.Z78 1982 .E44 en_US
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/handle/182648
dc.description.abstract Water samples were collected at four sites on the White River, Muncie, Indiana, on a biweekly basis from April 1980 to April 1981, to determine seasonal variation in A. hydrophila density. In conjunction with water sampling, temperature, dissolved oxygen, conductivity and pH were determined at each site. During this period a yearly mean of 589 colony forming units (CFU) per ml was obtained with a range of 0-6350. Peaks in mean A. hydrophila numbers occurred during the summer (1808 CFU ml-1) and early spring (3946 CFU ml-1) with lows occurring in winter (42 CFU ml-1). No significant correlations could be found between CFU values and the physico-chemical parameters studied over the calendar year. However, the compiling of data from May 1979 to April 1981 did yield a significant correlation between A. hydrophila density values and the following water quality parameters: temperature, conductivity, and dissolved oxygen.Fish were collected during June through October 1980 at various sites along the White River, Delaware County, Indiana, for the determination of past or present exposure to A. hydrophila infection by serological and direct isolation methods. Of 102 different fish sera tested, 36% (37/102) had a detectable titer to A. hydrophila (isolate #113). However, the direct isolation method only yielded seventeen percent (8/47) of the fishes sampled to be positive forA. hydrophila systemically. Agglutinins to A. hydrophila were demonstrated in eleven different fish species, whereas five different species revealed no detectable antibody to the specific particulate antigen employed. Estimated CFU ml-1 of A. hydrophila was the only parameter which correlated with the presence of agglutinating antibody to this organism in river fish populations.Ball State UniversityMuncie, IN 47306 en_US
dc.format.extent vi, 54 leaves : ill. ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Aeromonas hydrophila. en_US
dc.subject.lcsh Fishes -- Diseases -- Indiana -- Muncie. en_US
dc.subject.other Ball State University. Thesis (M.S.) en_US
dc.title Seasonal distribution of the fish pathogen Aeromonas hydrophila and serological evidence of Aeromonas hydrophila infection in fish populations of the White River, Muncie, Indiana en_US
dc.description.degree Thesis (M.S.)--Ball State University, 1982. en_US
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/393927 en_US


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  • Master's Theses [5510]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

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