Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10483
Water resources data, Iowa, water year 2005 Water resources data, Iowa, water year 2005
This volume of the annual hydrologic data report of Iowa is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey’s surface- and ground-water data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of streamflow, ground-water levels, and quality of water provide the hydrologic information needed by...
Authors
Greg M. Nalley, Joseph G. Gorman, Robert D. Goodrich, Greg R. Littin, S. Michael Linhart, Von E. Miller, Kevin S. Housel
Acute and chronic toxicity of lead in water and diet to the amphipod Hyalella azteca Acute and chronic toxicity of lead in water and diet to the amphipod Hyalella azteca
We evaluated the influence of waterborne and dietary lead (Pb) exposure on the acute and chronic toxicity of Pb to the amphipod Hyalella azteca. Test solutions were generated by a modified diluter with an extended (24‐h) equilibration period. Acute (96‐h) toxicity of Pb varied with water hardness in the range of 71 to 275 mg/L as CaCO3, despite similar dissolved Pb concentrations. Acute...
Authors
J.M. Besser, W. G. Brumbaugh, E.L. Brunson, C.G. Ingersoll
Improving removal-based estimates of abundance by sampling a population of spatially distinct subpopulations Improving removal-based estimates of abundance by sampling a population of spatially distinct subpopulations
A statistical modeling framework is described for estimating the abundances of spatially distinct subpopulations of animals surveyed using removal sampling. To illustrate this framework, hierarchical models are developed using the Poisson and negative-binomial distributions to model variation in abundance among subpopulations and using the beta distribution to model variation in capture
Authors
R.M. Dorazio, H.L. Jelks, F. Jordan
Developmental biology and ecology of the Kemp's ridley sea turtle. Lepidochelys kempii, in the eastern Gulf of Mexico Developmental biology and ecology of the Kemp's ridley sea turtle. Lepidochelys kempii, in the eastern Gulf of Mexico
Abstract not supplied at this time
Authors
J.R. Schmid, W.J. Barichivich
Spatiotemporal patterns of fish assemblage structure in a river impounded by low-head dams Spatiotemporal patterns of fish assemblage structure in a river impounded by low-head dams
We studied spatiotemporal patterns of fish assemblage structure in the Neosho River, Kansas, a system impounded by low-head dams. Spatial variation in the fish assemblage was related to the location of dams that created alternating lotic and lentic stream reaches with differing fish assemblages. At upstream sites close to dams, assemblages were characterized by species associated with...
Authors
David P. Gillette, Jeremy S. Tiemann, David R. Edds, Mark L. Wildhaber
Selenium impacts on razorback sucker, Colorado River, Colorado: II. Eggs Selenium impacts on razorback sucker, Colorado River, Colorado: II. Eggs
Effects on hatching and development of fertilized eggs in adult razorback sucker (Xyrauchen texanus) exposed to selenium in flooded bottomland sites near Grand Junction, Colorado, were determined. After 9 months exposure, fish were collected and induced to spawn and eggs collected for inorganic element analyses. A 9-day egg study was conducted with five spawns from Horsethief ponds, six...
Authors
S. J. Hamilton, K.M. Holley, K.J. Buhl, F.A. Bullard
Ground-water conditions and studies in Georgia, 2002-03 Ground-water conditions and studies in Georgia, 2002-03
No abstract available.
Authors
David C. Leeth, John S. Clarke, Caryl J. Wipperfurth, Steven D. Craigg
Hydraulic properties of the surficial aquifer at five selected sites in the Little Contentnea Creek basin, North Carolina, 2002-03 Hydraulic properties of the surficial aquifer at five selected sites in the Little Contentnea Creek basin, North Carolina, 2002-03
No abstract available.
Authors
Douglas G. Smith, Melinda J. Chapman
Temporal and spatial variation of early mortality syndrome in salmonids from Lakes Michigan and Huron Temporal and spatial variation of early mortality syndrome in salmonids from Lakes Michigan and Huron
To assess the extent that early mortality syndrome (EMS) impacts different Pacific salmonid stocks and the association of EMS with thiamine, we collected eggs of coho salmon Oncorhynchus kisutch from three Lake Michigan tributaries (Platte River, Thompson Creek, and Root River) in 1996-2001. We also obtained eggs of Chinook salmon O. tshawytscha from Lake Michigan (Little Manistee River)...
Authors
M. Wolgamood, J.G. Hnath, S.B. Brown, K. Moore, S.V. Marcquenski, D. C. Honeyfield, J. P. Hinterkopf, J.D. Fitzsimons, D. E. Tillitt
Long-term changes in ground water chemistry at a phytoremediation demonstration site Long-term changes in ground water chemistry at a phytoremediation demonstration site
A field-scale demonstration project was conducted to evaluate the capability of eastern cottonwood trees (Populus deltoides) to attenuate trichloroethene (TCE) contamination of ground water. By the middle of the sixth growing season, trees planted where depth to water was
Authors
Sandra M. Eberts, Sonya A. Jones, Christopher L. Braun, Gregory J Harvey
Reduced growth and survival of larval razorback sucker fed selenium-laden zooplankton Reduced growth and survival of larval razorback sucker fed selenium-laden zooplankton
Four groups of larval razorback sucker, an endangered fish, were exposed to selenium-laden zooplankton and survival, growth, and whole-body residues were measured. Studies were conducted with 5, 10, 24, and 28-day-old larvae fed zooplankton collected from six sites adjacent to the Green River, Utah. Water where zooplankton were collected had selenium concentrations ranging from
Authors
Steven J. Hamilton, Kevin J. Buhl, Fern A. Bullard, Susan McDonald
Species frequency dynamics in an old-field succession: Effects of disturbance, fertilization and scale Species frequency dynamics in an old-field succession: Effects of disturbance, fertilization and scale
Question:
Authors
David J. Gibson, Beth A. Middleton, K. Foster, Y. A. K. Honu, E. W. Hoyer, M. Mathis