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 20 of 58 for “"stream ecology"”.
-
Some effects of abandoned manganese strip mines in Smyth County, Virginia on stream ecology
… have for many years contributed pollution to the streams draining them. Streams in the Cripple Creek drainage area were sampled during the summer of 1967 to determine the nature and extent of pollution in them, and to evaluate the reclamation work being done by the United States Forest Service. …
-
Portrait of Your Stream: Development and Assessment of a Stream Ecology Program for Middle-School Student
Portrait of Your Stream (POYS) is a stream ecology and student action program designed for use with middle-school students. The program is correlated with learning cycle pedagogical methods emphasizing student-centered lessons and activities in both classroom and outdoor settings. Implementation of …
-
Scale, ecological fallacy, and the river continuum concept
… of an influential theoretical framework in stream ecology, the River Continuum Concept (RCC). Investigators are faced with decisions regarding scale during sampling location selection, field data capture, and subsequent data interpretation. A thorough understanding of the heterogeneity of …
-
The effect of regulation by two impoundments on an acid, blackwater, Cape mountain stream
… a fuller understanding of the effects of stream regulation but has also provided a setting for testing and developing basic theories of stream ecology. Two important concepts in stream ecology, the River Continuum Concept (RCC) and the Serial Discontinuity Concept (SOC), required …
-
Short-term effects of defoliation by gypsy moth larvae on Appalachian headwater streams in Virginia
… gypsy moth larvae on three aspects of headwater stream ecology, water quality, benthic macroinvertebrate community structure, and benthic macroinvertebrate function (expressed as secondary production). The experimental design was to compare measurements in three streams that were extensively …
-
Virtual Worlds and Conservational Channel Evolution and Pollutant Transport Systems (Concepts)
… a water system, scientists and engineers develop stream rehabilitation plans. Stream rehabilitation as defined by Shields et al., states that "restoration is the return from a degraded ecosystem back to a close approximation of its remaining natural potential" [Shields et al., 2003]. Engineers …
-
Examining uncertainty in environmental DNA analyses in freshwater lotic systems
… experiment using 12 naturalized experimental streams and stocked caged Brook trout (Salvelinus fontinalis), Rainbow Trout (Oncorhynchus mykiss), and Cutthroat Trout (Oncorhynchus clarkii) in each stream at varying biomasses. Triplicate water samples were collected from the start, middle, and …
-
An Investigation of Spatial and Temporal Variability in Several of Montana's Reference Streams: Working Toward a More Holistic Management Strategy
… a physical property that fundamentally affects stream ecology and is considered an important water quality parameter from scientific and legal view points. On global, catchment and reach scales, anthropogenic activities have substantially altered natural stream temperature regimes, impairing …
-
An Investigation of Spatial and Temporal Variability in Several of Montana's Reference Streams: Working Toward a More Holistic Management Strategy
… a physical property that fundamentally affects stream ecology and is considered an important water quality parameter from scientific and legal view points. On global, catchment and reach scales, anthropogenic activities have substantially altered natural stream temperature regimes, impairing …
-
Effects of Short-Term Dewatering on Grazer Abundance and Algal Biomass in a Wastewater Treatment Algal Turf Scrubber
… turf scrubbers (ATS™) systems mimic natural streams, flowing wastewater over hard substrates designed to encourage attached algae growth. This study focuses on the use of replicated ATS™ systems, because they are low maintenance, are effective for removing nutrient pollutants, model natural …
-
Effects of urbanization on instream habitat and fish assemblages in the chattanooga metropolitan area, Tennessee-Georgia
Twenty-one stream sites in the Ridge and Valley ecoregion of Tennessee and Georgia were studied in 2008 to evaluate the effects of watershed urbanization on instream environmental parameters and fish assemblages. I also investigated changes in urbanization and stream conditions at 10 sites over a …
-
Local effects of culverts on habitat features and fish assemblages in Blue Ridge streams
… and culvert features in 11 headwater streams (Tennessee and Conasauga river drainages) in Cherokee National Forest (Blue Ridge ecoregion), Tennessee, May-August 2008. Culvert-related effects on instream habitat and fish assemblages were measured at 10 stream sites: five sites contained …
-
The Importance and Seasonal Variation of Terrestrial Invertebrates as Prey for Juvenile Salmonids on the Kol River Floodplain, Kamchatka, Russian Federation
… invertebrates, resource subsidy, forest-stream ecotone, food webs, stream ecology, salmonids, Kamchatka
-
The Importance and Seasonal Variation of Terrestrial Invertebrates as Prey for Juvenile Salmonids on the Kol River Floodplain, Kamchatka, Russian Federation
… invertebrates, resource subsidy, forest-stream ecotone, food webs, stream ecology, salmonids, Kamchatka
-
Quantification and assessment methods for large wood (LW) in fluvial systems
… and ecological important element as it moderates stream power, regulates sediment transport and provides habitat for fish and other living organisms. Besides the beneficial effects of wood in rivers, an abundance of organic material, which is often introduced to waterways by changing climatic …
-
Water Quality and Groundwater Discharge in the Halton Region
… at a high resolution (n>500 samples across n>40 streams) in 2022 to better understand nutrient, major and trace element dynamics and underlying controls in streams in this rapidly urbanizing region. This thesis presents the summary of this surface water quality monitoring data and its application …
-
Assemblages of salamanders (Family Plethodontidae) in CWA 305(b) fully-supporting, partially-supporting, and non-supporting streams on Walden's Ridge, Tennessee
… salamander communities in AMD affected streams. The Clean Water Act (CWA) requires that each navigable body of water in the United States be assigned a use designation and a support status based upon the stream's use designation and how it is affected by local pollution to be published …
-
Reconstructing the long-term history of water quality and availability using fossil diatoms at an agricultural site in the Cape lowlands
… and agricultural use as well as for in stream ecology, therefore knowledge of what impacts this rivers water quality and assessing whether ecological resilience has been surpassed are of the utmost importance. Since diatom assemblages are inextricably linked to the chemical, physical and …
-
Advancing Water Security and Environmental Sustainability Through Evaluation of Water Use From the Field to State-Wide Scale
… strict regulations on water discharge into streams to enforce water quality standards; however, water withdrawal restrictions from streams are limited and inadequate in terms of water management at times of low flow. In states such as Virginia (VA), the Virginia Department of Environmental …
Page 1 of 3