Relationship of total Vibrio spp. and Vibrio vulnificus to phytoplankton and water quality parameters in the Neuse River Estuary, North Carolina Public Deposited

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  • March 22, 2019
  • Susick, Emma K.
    • Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
  • Vibrio bacteria are widely distributed in estuarine and coastal aquatic systems across the globe and not only play vital roles in nutrient cycling but are also important human pathogens. V. vulnificus is especially important in the United States as it is responsible for a majority of deaths seafood-related deaths. This study examined dynamics among total Vibrio, V. vulnificus, plankton populations and environment parameters in the Neuse River Estuary. Size fractionation was used to crudely partition zooplankton from phytoplankton. While there was substantial variation in total Vibrio concentrations, the [greater than or equal to]180[micro]m fraction, containing primarily large phytoplankton and zooplankton, exhibited more rapid growth over the course of the experiment compared to fractions containing smaller organisms and control treatments. Responses of V. vulnificus were also tested, but results showed that dynamics are complex and highly variable. Further exploration of the species-specific nature of these relationships is necessary to improve understanding of Vibrio ecology.
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  • In Copyright
  • "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Environmental Sciences and Engineering, Gillings School of Global Public Health."
  • Noble, Rachel T.
  • Characklis, Gregory
Degree granting institution
  • University of North Carolina at Chapel Hill
Place of publication
  • Chapel Hill, NC
  • Open access

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