Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"tidal exchange"”.
-
Estuarine Dynamics as a Function of Barrier Island Transgression and Wetland Loss: Understanding the Transport and Exchange Processes
… barrier islands are converted to inner shoals, tidal exchange increases between the estuary and coastal ocean. If marshes are unable to accrete at a pace comparable to SLR, wetlands will deteriorate and the tidal exchange and tidal prism will further increase. Secondary to hurricanes, winter …
-
Capturing dynamics of marine inorganic carbon fluxes from diurnal to decadal timescales
… fluxes across different boundaries, such as tidal exchange between coastal wetlands and coastal oceans. Coastal salt marshes have been suggested to be a large net CO2 sink, thus designated as a type of “blue carbon.” However, accurate and dynamic estimates of carbon fluxes to and from tidal …
-
Capturing dynamics of inorganic carbon fluxes from diurnal to decadal timescales
… fluxes across different boundaries, such as tidal exchange between coastal wetlands and coastal oceans. Coastal salt marshes have been suggested to be a large net CO₂ sink, thus designated as a type of "blue carbon." However, accurate and dynamic estimates of carbon fluxes to and from tidal …
-
Coastal zone utilization by juvenile fish in the Eastern Cape, South Africa
… Bay and covered the nearshore ichthyo-plankton, tidal exchange of fish eggs, larvae and juveniles across the mouth of the Swartkops estuary, the ichthyofauna of the Swartkops and Sundays estuaries, the juvenile fish associated with subtidal soft substrata and rocky reefs and the ichthyofauna, …
-
An analysis of factors controlling the distribution of zooplankton in the Knysna estuary, South Africa
… distribution was found to be related to tidal exchange. The zooplankton displayed a seasonal cycle of abundance, with maximum numbers occuring during summer. P. hessei displayed no pronounced seasonal cycle in abundance. Its abundance was strongly related to freshwater inflow. Seasonal …
-
Hazard Identification and Coastal Stratigraphy in Crescent Harbor, Northeast Whidbey Island, Washington
… reveal a marsh peat abruptly overlain by intertidal mud, indicating rapid subsidence. Analysis of the modern-day position of depositional facies indicates subsidence from a high marsh to a tidal-flat environment representing an estimated 1.7 m elevation change. The timing of subsidence fits …
-
Field Observations and Numerical Simulations of Groundwater Dynamics Within Cabretta Island, A Georgia Barrier Island
… knowledge of groundwater resources and nutrient exchange in coastal settings has increased in response to rapid population growth. I present field and numerical results that 1) provide a better understanding of groundwater dynamics during calm weather periods, and 2) investigate the impacts of …
-
Long and Short-Term Morphologic Evolution and Stratigraphic Architecture of a Transgressive Tidal Inlet, Little Pass Timbalier, Louisiana
… barrier island shorelines can be attributed to tidal inlet processes, and therefore an understanding of these processes is important to effectively manage barrier systems. High rates of relative sea-level rise within the Mississippi River delta plain have resulted in rapid landwardmigration of …
-
Depositional History of Thousand Acre Marsh From Geophysical and Sedimentological Analyses
… marsh due to effects of sea level rise and tidal exchange within the Winyah Bay estuary. All of these environments have been identified within sediment cores, identification of geophysical reflectors and correlated with radiocarbon dating. The identified environmental changes correlate with …
-
The Impacts of External Nutrient Sources on Marine Phytoplankton in an Eastern Shore Sea-Side Estuary
… the light limitation of photosynthesis and high tidal exchange rates, removing phytoplankton, in this creek system.</p> <p>Nutrient concentrations, species composition and nutrient loading rates for reservoir discharge, groundwater and precipitation will be presented. In addition, a rainfall …
-
Nutrient dynamics in shallow tidally-dominated estuaries
Te Puna and Waikareao estuaries are shallow tidally-dominated estuaries in Tauranga Harbour located on the Bay of Plenty Coast, New Zealand. Tauranga Harbour is the site of a large commercial port surrounded by urban development. The primary aim of this thesis was to determine the variations of …
-
Larval fish assemblages of selected estuarine and coastal systems in Kwazulu-Natal, South Africa
… salinity + temperature + turbidity). Analyses of tidal exchange of fish larvae on flood and ebb tides, in Durban Harbour, Richards Bay Harbour and in the St Lucia Estuary mouth, indicated that selective tidal stream transport is a recruitment mechanism employed by certain species (e.g. Argyrosomus …