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No products are available for this SSP project at this time.
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Understanding effects of flow alteration on stream biota is essential to developing ecologically sustainable water supply strategies. We evaluated effects of altering flows via surface water withdrawals and instream reservoirs on stream fish assemblages, and compared effects with other hypothesized drivers of species richness and assemblage composition. We sampled fishes during three years in 28 streams used for municipal water supply in the Piedmont region of Georgia, U.S.A. Study sites had permitted average withdrawal rates that ranged from < 0.05 to > 13 times the stream's seven-day, ten-year recurrence low flow (7Q10), and were located directly downstream either from a water supply reservoir or from a withdrawal...
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A draft report and supporting information was produced by this SSP project. A scoping and reconnaissance study was conducted by the US Geological Survey in cooperation with the US Fish and Wildlife Service and National Park Service. Sediment, surface water and pore water samples were collected at 21 sites in the Clinch, Powell and South Fork Cumberland River basins in 2004-05. Three coal ponds (one yard sump and two drying cells) were also sampled in 2005. Surficial streambed sediment ranged from 0 to 47.7 percent coal and was composed predominantly of sand and gravel. Sediment quality guidelines were periodically exceeded at several sites for arsenic, chromium, lead and 22 of 31 polycyclic aromatic hydrocarbons...
Stream hydrology and temperature are among the most influential regulators of life-history traits and community structure of aquatic organisms. Hydrologic and thermal gradients strongly affect individual fitness and ultimately species success by imposing fundamental constraints on behavior, metabolic rates, reproduction, growth and ecological interactions. Stream hydrology and water temperature are also among the most frequently altered components of lotic systems due to human activities and other environmental disturbance. Despite their critical role in sustaining native aquatic biodiversity, few studies have examined the cross-scale influence of hydrology and water temperature on freshwater biota using a multi-species...
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No report for this QR project is available at this time. This project initially set out to expose snakeheads and flathead catfish (2 invasive fishes) to electric fields in a controlled laboratory study. This turned out to be not feasible for two reasons. Permits to hold the right species of snakeheads on campus could not be obtained, and flathead catfish of appropriate sizes that had not been previously exposed to electric fields (i.e., not captured by electrofishing) could not be attained. The objectives (and timeline) were revised to focus on food web relations for snakeheads and flathead catfish, specifically: (a) Determine trophic level and sources of prey for northern snakeheads collected from the Potomac...
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This QR project resulted in a report and a publication. The Kentucky arrow darter (Etheostoma spilotum, KAD) is a species of conservation concern due to its fragmented distribution and threats from anthropogenic stressors. In this report, I evaluate the relationship between KAD abundance and stream conductivity in the upper Kentucky River basin. Stream conductivity represents an indicator of exposure to headwater mining operations and/or shale gas development and may have direct or indirect effects on stream fish distributions. I used nonlinear regression techniques to evaluate change points and associated confidence intervals for KAD abundance related to conductivity levels. I also evaluated blackside dace (Chrosomus...
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This SSP project resulted in one scientific investigations report A one-dimensional step-backwater model was developed by the U.S. Geological Survey (USGS) in cooperation with the U.S. Fish and Wildlife Service, Pee Dee National Wildlife Refuge, North Carolina, to provide a means for predicting flood-plain inundation. The model was developed for selected reaches of the Pee Dee River, Brown Creek, and Rocky River, using the U.S. Army Corps of Engineers Hydrologic Engineering Center River Analysis System (HEC-RAS) software. Multiple cross sections were defined on each modeled stream, and hydrologic data were collected between August 2011 and August 2013 at selected locations on the Pee Dee River and on its tributaries...
Native freshwater mussels of the family Unionidae are experiencing high imperilment status due to habitat alteration and destruction, pollution and poor water quality, and the introduction of aquatic invasive species. The Southeastern, Mid-Atlantic, and Midwestern regions of the United States contain the greatest biodiversity of native freshwater mussels in the world and are now at even greater risk from the continued stresses of human-mediated changes to the landscape through urban and rural development, mining activities, climate change, nutrient influx and their associated impacts to water and sediment quality. The specific objectives of this study are to (1) Compare the relative sensitivity of early life stages...
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This SSP project contributed to production of two reports and two publications. Pallid sturgeon Scaphirhynchus albus were captured from the Atchafalaya River System and implanted with ultrasonic transmitters and tracked with mobile receivers and sentinel (constantly recording) receivers to understand habitat use and movements.
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The overall goal of this SSP project was to evaluate the exposure and toxicological effects of contaminant stressors in the water and sediment of the Clinch River in areas of high mussel decline in Virginia and in areas of high abundance and recruitment in Virginia and Tennessee. The investigation also included an assessment of major tributary streams with varied histories of degradation, recovery and disturbance. The specific objectives of this project were to: 1. Integrate existing data sets on mussel populations, NPDES discharges, mining and other energy permitted activities, pesticide use, and land use. 2. Using passive sampling devices, measure water concentrations of a suite of polar and non-polar organic...
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A behavioral comparison of wild and hatchery-reared shortnose sturgeon in the Savannah River, Georgia and South Carolina. There are currently no reports or publications available for this project.
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This SSP project resulted in one publication. Carbon storage was compared between impounded and naturally tidal freshwater marshes along the Lower Waccamaw River in South Carolina, USA. Soil cores were collected in (1) naturally tidal, (2) moist soil (impounded, seasonally drained since ~1970), and (3) deeply flooded "treatments" (impounded, flooded to ~90 cm since ~2002). Cores were analyzed for % organic carbon, % total carbon, bulk density, and 210Pb and 137Cs for dating purposes. Carbon sequestration rates ranged from 25 to 200 g C m-2 yr-1 (moist soil), 80-435 g C m-2 yr-1 (naturally tidal), and 100-250 g C m-2 yr-1 (deeply flooded). The moist soil and naturally tidal treatments were compared over a period...
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This report serves as metadata and a user guide for five out of six hydrologic and landscape databases developed by the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, to describe data-collection, data-reduction, and data-analysis methods used to construct the databases and provides statistical and graphical descriptions of the databases. Six hydrologic and landscape databases were developed: (1) the Cache River and White River National Wildlife Refuges (NWRs) and contributing watersheds in Arkansas, Missouri, and Oklahoma, (2) the Cahaba River NWR and contributing watersheds in Alabama, (3) the Caloosahatchee and J.N. “Ding” Darling NWRs and contributing watersheds in Florida, (4)...
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This QR project contributed to the production of a scientific investigations report. From 1954 to 2004, water levels declined in the nontidal reach of the Apalachicola River, Florida, as a result of long-term changes in stage-discharge relations. Channel widening and deepening, which occurred throughout much of the river, apparently caused the declines. The period of most rapid channel enlargement began in 1954 and occurred primarily as a gradual erosional process over two to three decades, probably in response to the combined effect of a dam located at the head of the study reach (106 miles upstream from the mouth of the river), river straightening, dredging, and other activities along the river. Widespread recovery...
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A final report was produced for this SSP project. The general objectives to this study were threefold, as follows: 1. To determine the environmental presence and abundance of Bden in headwater regions of river systems in the Southeastern United States through water samples evaluated for the presence of environmental DNA (eDNA). 2. To determine the presence of Bden infection in fauna of these headwater regions, including larval and adult amphibians as well as other potential reservoirs of infection. 3. To determine whether any association exists between water flow rate and associated stream parameters in headwater systems versus the presence/prevalence of Bden both in the environment and infecting amphibian host...


map background search result map search result map The First Step in Defining Sustainable Aquascapes: Spatially-explicit Quantification of Water Quantity, Timing and Distribution on Southeast Region National Wildlife Refuges Relations between stream biotic integrity and proportion of annual surface water runoff consumed for human use Carbon sequestration rates in managed and tidal freshwater marshes in the Waccamaw National Wildlife Refuge, South Carolina Hydraulic Modeling for Management Application at Pee Dee NWR Abundance, Growth, Mortality, and Habitat Use of Pallid and Shovelnose Sturgeon in the Lower Mississippi and Atchafalaya rivers Endangered Freshwater Mussel Declines in the Clinch River: An in situ Assessment of Water Quality Stressors in the Watershed Landscape modeling of Kentucky arrow darter (Etheostoma sagitta spilotum) occurrence and response to water quality parameters A behavioral comparison of wild and hatchery-reared Shortnose Sturgeon in the Savannah River, Georgia and South Carolina Sampling Vulnerability of Invasive Freshwater Fishes:   Snakeheads and Flathead Catfish Evaluation of Stream Reaches for Mussel Reintroduction in the Upper Coosa Watershed, NW GA Survey of Dan and Roanoke River Drainages in North Carolina and Virginia for a Potentially New Species of Unionid Mussel Effects of sediment toxicity from coal mining on endangered mussel populations in the Upper Tennessee and Cumberland river drainages Altered habitat of endangered or threatened freshwater mussels in the Apalachicola River floodplain, Florida, due to changes in river channel morphology and discharge Using environmental DNA analysis to determine the presence and distribution of Batrachochytrium dendrobatidis in Southern Appalachian headwater streams A behavioral comparison of wild and hatchery-reared Shortnose Sturgeon in the Savannah River, Georgia and South Carolina Relations between stream biotic integrity and proportion of annual surface water runoff consumed for human use Carbon sequestration rates in managed and tidal freshwater marshes in the Waccamaw National Wildlife Refuge, South Carolina Landscape modeling of Kentucky arrow darter (Etheostoma sagitta spilotum) occurrence and response to water quality parameters Evaluation of Stream Reaches for Mussel Reintroduction in the Upper Coosa Watershed, NW GA Hydraulic Modeling for Management Application at Pee Dee NWR Abundance, Growth, Mortality, and Habitat Use of Pallid and Shovelnose Sturgeon in the Lower Mississippi and Atchafalaya rivers Altered habitat of endangered or threatened freshwater mussels in the Apalachicola River floodplain, Florida, due to changes in river channel morphology and discharge Sampling Vulnerability of Invasive Freshwater Fishes:   Snakeheads and Flathead Catfish Survey of Dan and Roanoke River Drainages in North Carolina and Virginia for a Potentially New Species of Unionid Mussel Endangered Freshwater Mussel Declines in the Clinch River: An in situ Assessment of Water Quality Stressors in the Watershed Effects of sediment toxicity from coal mining on endangered mussel populations in the Upper Tennessee and Cumberland river drainages Using environmental DNA analysis to determine the presence and distribution of Batrachochytrium dendrobatidis in Southern Appalachian headwater streams The First Step in Defining Sustainable Aquascapes: Spatially-explicit Quantification of Water Quantity, Timing and Distribution on Southeast Region National Wildlife Refuges