dc.contributor.author	West, Ted Forest, III
dc.coverage.spatial	Central and North America -- United States -- Georgia -- Lake Seminole	en_US
dc.date.accessioned	2016-07-11T19:56:10Z
dc.date.available	2016-07-11T19:56:10Z
dc.date.issued	2016-05
dc.identifier	8E759D7D-A5AF-4FE6-AB6B-1D24DA6BE60B
dc.identifier.uri	http://hdl.handle.net/10428/2228
dc.description.abstract	Alteration to landscapes by humans can seriously impact dynamics of aquatic ecosystems. Examples of such alterations include urbanization and agriculture in which introduced effluent and materials are either directly or indirectly deposited into rivers. In large rivers, reservoirs alter natural flows creating lentic ecosystems susceptible to allochthonous inputs from up-river. In this investigation, phytoplankton community change over a multi-year period in a large shallow reservoir, Lake Seminole, Georgia, links primary producer change to environmental and anthropogenic stressors. Inflows into Lake Seminole differ in that one arm is primarily from urban/industrial areas and the other two are mainly from agricultural regions providing a unique natural experiment regarding land-use effects on phytoplankton dynamics. Phytoplankton community structure was estimated by measuring and analyzing photosynthetic pigments. Stressors to the system included precipitation, temperature, water flow, and the presence of the invasive macrophyte Hydrilla verticillata which is seasonally known to cover up to 50% of the lake. Results show that average phytoplankton abundance is increased from upreservoir to down-reservoir and in the presence of Hydrilla verticillata. The phytoplankton community of Lake Seminole demonstrates the complexity and multivariate integration of anthropogenic stressors in large reservoirs showing the difficulty of management efforts targeting a single stressor.	en_US
dc.description.tableofcontents	Chapter I: INTRODUCTION 1 Reservoir Dynamics 1 Longitudinal Gradients in Reservoirs 2 Phytoplankton Dynamics in Longitudinal Gradients and Reservoirs 3 Macrophyte Effects on Reservoir, Nutrient, and Phytoplankton Dynamics 4 Land-use Effects on Phytoplankton and Reservoir Dynamics 6 Lake Seminole and the Apalachicola-Flint-ChattahoocheeRiver Basin 7 Research Objectives 8 Chapter II: SPATIO-TEMPORAL EFFECTS OF HYDRILLA VERTICILLATA ON PHYTOPLANKTON DYNAMICS IN A SHALLOW RESERVOIR 9 Introduction I0 Methods 12 Results	en_US
dc.language.iso	en_US	en_US
dc.subject	Biology	en_US
dc.title	Spatial and Temporal Phytoplankton Dynamics in Response to Environmental and Anthropogenic Stressors in Lake Seminole, Georgia	en_US
dc.type	Thesis	en_US
dc.contributor.department	Biology	en_US
dc.description.advisor	Waters, Matthew
dc.description.committee	Goddard, Russell H.
dc.description.degree	M.S.	en_US
dc.description.major	Biology	en_US