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MORPHODYNAMICS OF A CONSTRUCTED MARSH
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MORPHODYNAMICS OF A CONSTRUCTED MARSH

Chasidy Marie Hobbs
University of West Florida
Master of Science (MS), University of West Florida
2007

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Abstract

Project Greenshores, an ecosystem restoration project in Pensacola, Florida, involved the establishment of submergent and emergent grasses along with oyster habitat. Beginning elevation, inundation period, morphological change and vegetation density and height were examined on one of the islands of the project from July 2005 to July 2006. A combination of spatial and correspondence analysis was used to determine relationships among the variables. These variables alone could not explain differences in sedimentation and erosion patterns at Greenshores, as the associations each had with sedimentary processes were inconsistent throughout the study. Overall, the island migrated to the north-northwest, or landward. This marsh was created on a barred terrace and the morphological change that occurred on the island is more characteristic of an intertidal bar than that of a typical salt marsh. This suggests that wave activity (and tide levels) may largely control the morphological response of the island and that there is a potential for this island to continue migrating landward in response to future storm events.
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