The effects of intertidal exposure on disease, mortality, and growth of the eastern oyster, Crassostrea virginica

dc.contributor.advisorNewell, Roger I. E.en_US
dc.contributor.advisorBreitburg, Denise L.en_US
dc.contributor.authorMalek, Jennafer Christineen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2011-02-19T06:39:46Z
dc.date.available2011-02-19T06:39:46Z
dc.date.issued2010en_US
dc.description.abstractDisease, mortality, and growth of benthic organisms can be influenced by and determine spatial distributions. The eastern oyster, Crassostrea virginica, an economically and ecologically important species in Chesapeake Bay, is found in both the intertidal and subtidal in Virginia, but only in the subtidal in Maryland. I used field experiments and sampling to determine whether disease (Dermo) mortality, and growth of oysters vary among tidal heights during summer in the Maryland and Virginia regions of Chesapeake Bay. Results indicated that Dermo prevalence and mortality decreased and growth increased with decreasing durations of intertidal air-exposure. Dermo prevalence was higher in habitats with long durations of air-exposure than in subtidal habitats but progression of the disease did not differ consistently among tidal heights. Patterns in summer mortality, growth, and disease in combination with recruitment, winter mortality, and predation likely contribute to the variation in tidal distributions of oysters within Chesapeake Bay.en_US
dc.identifier.urihttp://hdl.handle.net/1903/11105
dc.subject.pqcontrolledEcologyen_US
dc.titleThe effects of intertidal exposure on disease, mortality, and growth of the eastern oyster, Crassostrea virginicaen_US
dc.typeThesisen_US

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