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 19 of 19 for “"stream morphology"”.
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Growth Correlates of Several Lotic Fishes
… between growth rates of three fish species and stream morphology, riparian type, and fish community structure were examined in South Dakota wadeable streams during summer 2002 and 2003. Study sites represented all physiographic provinces in South Dakota and a variety of riverine conditions. Fish …
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Terrestrial Laser Scanning for Quantifying Uncertainty in Fluvial Applications
Stream morphology is an important aspect of many hydrological and ecological applications such as stream restoration design (SRD) and estimating sediment loads for total maximum daily load (TMDL) development. Surveying of stream morphology traditionally involves point measurement tools, such as …
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Riparian Seedling Establishment Defined by Sediment Mobilization and Water Availability In a Gravel Bed River
Stream hydrograph and morphology are the main drivers of riparian white alder distribution. White alder seeds are preferentially deposited on stream bars where stream morphology and flow result in eddies. This thesis predicts the establishment success of riparian seedlings as a function of root …
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COMMUNITY STRUCTURE AND FUNCTIONAL DIVERSITY OF IMPERILED GREAT PLAINS FISHES: IMPLICATIONS FOR CONSERVATION OF TWO ENDANGERED SHINERS (SHARPNOSE SHINER NOTROPIS OXYRHYNCHUS AND SMALLEYE SHINER NOTROPIS BUCCULA) IN THE UPPER BRAZOS RIVER, TEXAS
… diversity was positively influenced by downstream gradients in water chemistry and stream morphology. Populations of the endangered shiners were restricted to stream sites with greater habitat connectivity and continuous stream flow which are required for key habitat requirements for …
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A Spatial and Multivariate Approach to Examining Effects of Urbanization on Nitrogen Sources, Organic Matter Inputs, and Trophic Structure in Streams of Cobb and Paulding Counties, Georgia.
… and land use changes have a negative effect on streams often causing numerous physical changes in stream morphology, a change in nutrient concentrations, and altered ecosystems contributing to a loss of habitat, decreased biodiversity, and loss of stability for ecosystem function (Walsh et al., …
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Bedrock channel response to tetonic, climatic and eustatic forcings
… application of a simple form of the model to the stream profiles suggests that (1) the channels are eroding at rates approximately equal to uplift rates (i.e. steady-state fluvial incision), and (2) erosion processes are proportionally more effective in the high-uplift-rate zone, with factors in …
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Suction Dredge Mining Impacts on Pacific Lamprey Populations and Habitat in Washington State: A Case Study of the Entiat River
… coarse gravel to fine sand, and burrowing into streambeds as larvae to grow for a maximum of seven years (Pirtle et al., 2003; Graham and Brun, 2006). By conducting a controlled dredging experiment along the Entiat River and comparing alterations to water quality and stream morphology before and …
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Boundary Shear Stress Along Vegetated Streambanks
… to determine the role of riparian vegetation in stream morphology. This experiment examined the effects of riparian vegetation on boundary shear stress (BSS) by completing the following objectives: (1) evaluating the effects of streambank vegetation on near-bank velocity and turbulence; (2) …
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Non-perennial streamflow & geomorphic patterns in a semi-arid rangeland slated for development
Urbanization has widely recognizable impacts on stream morphology and flow patterns. Predicting and quantifying these impacts can be difficult, especially for non-perennial streams in semi-arid rangelands. Non-perennial streams tend to lack a historical baseline with complete records of streamflow …
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Geomorphic Analysis of A Rural Fluvial System During Pre-Dam Removal Conditions: A Case Study In Eastern Virginia
… Like the dams themselves, dam removal impacts stream morphology and chemistry, and these impacts are hard to predict without a comprehensive (spatially and temporally) analysis of the pre-dam removal fluvial system. This thesis investigates the linkages between the physical and chemical systems …
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Lower Scotts Creek Floodplain and Habitat Enhancement Project
… primary factor limiting salmonid production. Instream rearing habitat may also be limiting, especially during drought years. The legacy effects of historic land use practices, including dredging, wood removal, and the construction of levees, continued to limit refuge and rearing opportunities. A …
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The Form and Function of Headwater Streams Based on Field and Modeling Investigations in the southern Appalachian Mountains
Headwater streams drain the majority of the landscape, yet little is known about their form and function in comparison to lowland rivers. Better understanding of their morphology and sediment transport processes will improve understanding of landscape evolution and promote a more complete view of …
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LONGITUDINAL SOLUTE TRANSPORT IN OPEN-CHANNEL FLOW - A Numerical Simulation Study on Longitudinal Dispersion, Surface Storage Effects, Transverse Mixing, Uncertainties and Parameter-Transferring Problems
… transport modeling is critical in river and stream water quality management, control, and the mitigation of hazardous riverine spills. One of the widely used "deadzone" model is the transient storage model (TSM). TSM is a significant improvement over the advection-dispersion model (ADM), but …
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Survival and space use of riparian muskrats (Ondatra zibethicus) within an agroecosystem
… species in this region and occur in small streams and agricultural ditches throughout the Midwest. However, information regarding space use and survival of muskrats in these highly altered habitats is lacking. I examined predation risk, survival, home ranges, and space use of muskrats …
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A GIS evaluation of land use dynamics and fish habitat in the salmon river watershed - Langley, B.C.
… and processes associated with fish habitat and streamside land use relationships. Geographic Information System techniques were used to analyze the land use data and to display the results. The distribution and temporal changes in land use from1979-80 to 1989-90 are examined in three ways: 1) an …
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Form and function: quantifying geomorphic heterogeneity and drivers in dryland non-perennial river corridors
… including intermittent rivers and ephemeral streams, comprise the majority of drainage networks globally. However, ephemeral streams remain understudied compared to perennial counterparts, and the majority of extant studies focus on in-channel dynamics. Floodplains along perennial streams are …
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Evaluating Geomorphic Change in Little Creek Using Repeated Cross-Sectional and Longitudinal Profile Surveys
… established in 2002 along a forested mountain stream (gradients range from 0.02 to 0.05) on Cal Poly's Swanton Pacific Ranch in Santa Cruz County, California. These study reaches are a component of paired and nested watershed studies in the approximately 500 hectare Little Creek watershed. The …