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.
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Showing 1 to 20 of 85 for “"creeks"”.
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Determination of Selected Heavy Metals in Some Creeks in a Tennessee City.
… Fe, Cd, and Pb were determined in six different creeks within a city in Tennessee using Atomic Absorption Spectrophotometer. Mean concentrations of Ni, Cu, Zn, Cd, Pb, and Fe in the sites examined reveal that they exceed the USEPA recommended limits. High concentrations of Cu (0.130 mg/L), Zn …
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The Impact of Urbanization on Macroinvertebrate Communities of Creeks Within Western Georgia
<p>Urbanization is a major cause of stream impairment in the United States, altering stream ecological integrity in a variety of ways. While control of point source pollution has largely improved over the last twenty years, the control of non-point source pollution has proved to be more of a …
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Isotope hydrology of Lehman and Baker creeks drainages, Great Basin National Park, Nevada
… the recharge and mixing characteristics of the creeks, lakes and shallow groundwater in the park. The results have been used to trace the sources of the springs and creek discharges and also to determine the isotopic behavior of the alpine lakes, as well as groundwater exchange with the lakes; …
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Levels of Heavy Metals in Sediment Samples from Select Creeks in Metro Vancouver, BC, Canada
Forty-seven samples collected from 23 creeks in Metro Vancouver, BC, Canada were analyzed to assess how different land use activities affect physicochemical properties in surface water and metal concentrations in sediments. The pH, total dissolved solids and electrical conductivity in surface water …
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From the Creeks to the Community: The Reintegration of Ex-combatants in Nigeria’s Niger Delta
<p>Nigeria’s Niger Delta region was beset by several decades of communal turmoil when combatants took up arms against the government and oil companies to protest decades of neglect of the region. These conflicts eased in 2009 when the Federal Government of Nigeria instituted an amnesty program that …
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A Descriptive Survey of Freshwater Unionidae Bivalves in Five Creeks Located in West Central Georgia
… Mountain Oak, Mulberry, Standing Boy, and Upatoi Creeks has been completed. The survey is intended to determine whether Unionidae populations remain extant in this portion of the Chattahoochee River drainage, and to estimate the abundance and distribution of species encountered. Accessibility …
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Ecosystem metabolism in salt marsh tidal creeks and ponds : applying triple oxygen isotopes and other gas tracers to novel environments
… found globally at temperate latitudes. Tidal creeks and marshtop ponds may expand at the expense of productive grass-covered marsh platform. It is therefore important to understand the present magnitude and drivers of production and respiration in these submerged environments in order to …
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Ecosystem metabolism in salt marsh tidal creeks and ponds : applying triple oxygen isotopes and other gas tracers to novel environments
… found globally at temperate latitudes. Tidal creeks and marshtop ponds may expand at the expense of productive grass-covered marsh platform. It is therefore important to understand the present magnitude and drivers of production and respiration in these submerged environments in order to …
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Copper Concentrations in Tidal Creeks and Estuaries of the Eastern Shore and the Relationship to Plasticulture and Copper-based Crop Protectants
… the scope of copper in Eastern Shore tidal creeks. Runoff from a variety of land-uses including agricultural, plasticultural, residential and natural areas were collected and measured for copper to determine where copper-containing runoff originates. Copper concentrations in plasticulture …
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Creek diplomacy in an imperial Atlantic world
… diplomacy in its external and internal forms, as Creeks moved outward to establish diplomatic relations with others, and dealt with outsiders who came to them for the same purpose.</p><p>Creek diplomats traveled extensively to promote their aims for almost three centuries. They visited important …
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An Ecotoxicological Assessment of Upper Clinch River Tributaries, Virginia
… with mining activity (Dumps, Russell and Coal Creeks). Tributaries were categorized by land use and mining streams were significantly different from agricultural and forested streams (F = 9.63, p<0.0001). Tributaries with ecotoxicological ratings (ETR) <80 from 100 were deemed suboptimal and …
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The 3D Structure of A Salt Marsh Island
… the 1D, 2D, and 3D geometry of 23 tidal creeks across a 0.5km<sup>2</sup> island within the intertidal zone of North Inlet South Carolina, USA. A Histogram of elevations shows 92% of the island is above sea level and only completely inundated by water levels greater than Mean High High …
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Occupancy of Stream-Associated Amphibians within the Interstate 90 Snoqualmie Pass Corridor
… construction of wildlife underpasses, where creeks cross Interstate 90 east of Snoqualmie Pass in Washington State. The effects of these restored underpasses on stream-associated amphibians were evaluated across 8 creeks, some with and some without restored underpasses, by comparing modeled …
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The evolution of tidal coastal landscapes and the controls on pathways to equilibrium
… the short-term influence of mangroves and tidal creeks on tidal circulation and large-scale tidal asymmetry. The results showed that the effect of vegetation on tidal asymmetry and flow routing was larger compared that of the tidal creeks. However, the small impact of the channels may be due to …
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Drivers and Fitness Consequences of Dispersal and Structure in Wild Sockeye Salmon Populations (Oncorhynchus nerka)
… of Sockeye salmon (Oncorhynchus nerka): A and C Creeks on the Wood River System, Bristol Bay, AK was studied over two complete generations of returning adults. First, a panel of 172 SNP loci was developed (genotyping-in-thousands by sequencing; Chapter One) and used to reconstruct a pedigree from …
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Ecological effects of ditching and ditch-plugging in New England salt marshes
… practice are also unclear. I used natural tidal creeks and pools as controls to examine the effects resulting from ditching and plugging, respectively, on hydrology, soil characteristics, marsh surface elevation, plant characteristics, fish productivity, and trophic webs. Results indicated only …
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Systematics of the North American Crayfish Genus Orconectes (Decapoda: Cambaridae)
… Orconectes margorectus occurs in small creeks with rocky substrates and is endemic to the extreme lower Cumberland and Ohio river drainages in western Kentucky. The second species, now referred to as O. putnami lives in the lower Tennessee River drainage and while the third species, now …
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The biopolitics of violence in the drama of the Niger Delta
… Niger Delta. Though noting the centrality of the creeks and swamps in both temporal contexts, I argue that the drama of the pre-oil modernity textualized the "ontology of water" as a site of socioeconomic and ecological relations with the people who inhabit the Delta terrain. In the event of oil …
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