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Articles 31 - 33 of 33
Full-Text Articles in Oceanography
A Novel Multiproxy Approach To Reconstructing Sea Surface Temperature In The Southwestern Gulf Of Mexico, Marissa Anne Vara
A Novel Multiproxy Approach To Reconstructing Sea Surface Temperature In The Southwestern Gulf Of Mexico, Marissa Anne Vara
LSU Master's Theses
Coral Sr/Ca is a widely-used proxy for sea surface temperature (SST); however, discrepancies in the coral Sr/Ca-SST relationship among colonies of the same species makes uncertainty in absolute temperature reconstructions larger than the climate signal yet climate variability studies are possible. Furthermore, the riverine input of terrestrial carbonate weathering products to the coastal waters can disrupt the coral Sr/Ca-SST signal by changing local seawater chemistry. This study evaluates the fidelity and reproducibly of coral SST proxies (Sr/Ca, Li/Ca, Mg/Li, Sr-U, Mg/Ca, and U/Ca) and a riverine-upwelling proxy (Ba/Ca) in four Orbicella faveolata colonies in two reefs offshore from Veracruz, Mexico …
Influence Of Black Mangrove Expansion On Salt Marsh Faunal Communities Of Eastern Coastal Louisiana, Christina Powell
Influence Of Black Mangrove Expansion On Salt Marsh Faunal Communities Of Eastern Coastal Louisiana, Christina Powell
LSU Master's Theses
The salt marshes along the Gulf of Mexico provide a critical habitat for many species, but their spatial distribution is changing, because Avicennia germinans (black mangroves) are expanding due to warmer winters. Currently, little is known about how A. germinans are used as habitat providing food and refuge for aquatic fauna. Therefore, the overall goal of this study was to determine how A.germinans expansion into the Spartina alterniflora (smooth cordgrass) marshes of Louisiana’s Mississippi River delta plain affects salt marsh-dependent organisms. This study analyzed three habitat types: Spartina-dominated, Avicennia-dominated, and a mix of the two, focusing on habitat use and …
How Dredge Pits Evolve Over Time: A Look At Their Geomorphologic Evolution And Infilling Processes, Patrick Robichaux
How Dredge Pits Evolve Over Time: A Look At Their Geomorphologic Evolution And Infilling Processes, Patrick Robichaux
LSU Master's Theses
As coastal environments become more susceptible to land loss through accelerating sea level rise and subsidence, new restoration methods harnessing borrowed sediment are more valuable than ever. Mud-capped dredge pits (MCDPs) are a relatively new source of restoration-quality sediment that has only recently been utilized for beach and barrier island restorations in Louisiana. Because MCDPs have been in use for less than two decades in only a handful sites, little is understood about their evolution over decadal timescales. To improve our understanding of MCDPs after they are dredged, we have conducted a suite of geophysical surveys including bathymetry, sidescan sonar, …