THE EFFECTS OF FRESHWATER FLOW AND GRAZING ON THE PLANKTON COMMUNITY STRUCTURE OF CHESAPEAKE BAY TRIBUTARIES

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dc.contributor.advisorRoman, Michael R.en_US
dc.contributor.authorReaugh, Matthew L.en_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.accessioned2005-08-03T14:42:37Z
dc.date.available2005-08-03T14:42:37Z
dc.date.issued2005-05-02en_US
dc.description.abstractChanges in the plankton composition of estuarine systems are often driven by freshwater flow. These changes in species composition and abundance have the potential to affect trophic dynamics within the plankton community. In order to quantify the effects of freshwater flow in estuaries, the structure of the spring plankton community and copepod grazing were examined in an extreme dry (2002) and wet (2003) year in two tributaries of Chesapeake Bay. Increases in phytoplankton and copepod biomass in the wet year were large in comparison to the increase in microzooplankton biomass. Ample abundance of prey and high copepod community grazing potentials indicate that microzooplankton biomass was influenced by strong top-down control in the high flow year. While no evidence of a copepod-microzooplankton-phytoplankton trophic cascade was found, increased top-down control by grazers in combination with increased nutrient supply in wet years may be important in establishing spring phytoplankton blooms in Chesapeake Bay.en_US
dc.format.extent1363732 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/2537
dc.language.isoen_US
dc.subject.pqcontrolledBiology, Oceanographyen_US
dc.subject.pqcontrolledBiology, Generalen_US
dc.subject.pquncontrolledCopepoden_US
dc.subject.pquncontrolledMicrozooplanktonen_US
dc.subject.pquncontrolledPhytoplanktonen_US
dc.subject.pquncontrolledChesapeake Bayen_US
dc.subject.pquncontrolledFreshwater Flowen_US
dc.subject.pquncontrolledGrazingen_US
dc.titleTHE EFFECTS OF FRESHWATER FLOW AND GRAZING ON THE PLANKTON COMMUNITY STRUCTURE OF CHESAPEAKE BAY TRIBUTARIESen_US
dc.typeThesisen_US

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