Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10483
A field assessment of long-term laboratory sediment toxicity tests with the amphipod Hyalella azteca A field assessment of long-term laboratory sediment toxicity tests with the amphipod Hyalella azteca
Response of the amphipod Hyalella azteca exposed to contaminated sediments for 10 to 42 d in laboratory toxicity tests was compared to responses observed in controlled three-month invertebrate colonization exposures conducted in a pond. Sediments evaluated included a sediment spiked with dichlorodiphenyldichloroethane (DDD) or dilutions of a field sediment collected from the Grand...
Authors
Christopher G. Ingersoll, Ning Wang, Jeannie M. R. Hayward, John R. Jones, Susan B. Jones, D. Scott Ireland
Selenium impacts on razorback sucker, Colorado River, Colorado: I. Adults Selenium impacts on razorback sucker, Colorado River, Colorado: I. Adults
Adult razorback sucker (Xyrauchen texanus) were exposed to various selenium concentrations in ponds and isolated river channels of the Colorado River near Grand Junction, CO, to determine effects on their growth and residue accumulation over an 11-month period. Adults at Horsethief ponds were fed a commercial diet, whereas fish at Adobe Creek channel and North Pond foraged on natural...
Authors
S. J. Hamilton, K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston, S.F. McDonald
Biochemical effects of lead, zinc, and cadmium from mining on fish in the Tri-States district of northeastern Oklahoma, USA Biochemical effects of lead, zinc, and cadmium from mining on fish in the Tri-States district of northeastern Oklahoma, USA
We assessed the exposure of fish from the Spring and Neosho Rivers in northeast Oklahoma, USA, to lead, zinc, and cadmium from historical mining in the Tri-States Mining District (TSMD). Fish (n = 74) representing six species were collected in October 2001 from six sites on the Spring and Neosho Rivers influenced to differing degrees by mining. Additional samples were obtained from the...
Authors
Christopher J. Schmitt, Jeffrey J. Whyte, William G. Brumbaugh, Donald E. Tillitt
Two-dimensional hydrodynamic simulation of surface-water flow and transport to Florida Bay through the Southern Inland and Coastal Systems (SICS) Two-dimensional hydrodynamic simulation of surface-water flow and transport to Florida Bay through the Southern Inland and Coastal Systems (SICS)
Successful restoration of the southern Florida ecosystem requires extensive knowledge of the physical characteristics and hydrologic processes controlling water flow and transport of constituents through extremely low-gradient freshwater marshes, shallow mangrove-fringed coastal creeks and tidal embayments, and near-shore marine waters. A sound, physically based numerical model can...
Authors
Eric D. Swain, Melinda A. Wolfert, Jerad D. Bales, Carl R. Goodwin
Guidelines for the use of fishes in research Guidelines for the use of fishes in research
No abstract available.
Authors
J.G. Nickum, H.L. Bart, P.R. Bowser, I.E. Greer, C. Hubbs, Jill A. Jenkins, J.R. MacMillan, J.W. Rachlin, J. D. Rose, P. W. Sorenson, J.R. Tomasso
Light attenuation profiling as an indicator of structural changes in coastal marshes Light attenuation profiling as an indicator of structural changes in coastal marshes
To best respond to natural and human-induced stresses, resource managers and researchers require remote sensing techniques that can map the biophysical characteristics of natural resources on regional and local scales. The implementation of advanced measurement techniques would provide significant improvements in the quantity, quality, and timeliness of biophysical data useful in...
Authors
Elijah Ramsey III, Gene Nelson, Frank Baarnes, R. Spell
Gulf coast states wood stork tracking project Gulf coast states wood stork tracking project
No abstract available
Authors
Tommy Michot, Clinton W. Jeske
Soils and sediment: Understanding wetland biogeochemistry Soils and sediment: Understanding wetland biogeochemistry
No abstract available.
Authors
Stephen Faulkner
Leaky coastal margins; examples of enhanced coastal groundwater and surface-water exchange from Tampa Bay and Crescent Beach submarine spring, Florida, USA Leaky coastal margins; examples of enhanced coastal groundwater and surface-water exchange from Tampa Bay and Crescent Beach submarine spring, Florida, USA
No abstract available
Authors
P.W. Swarzenski, J. L. Kindinger
Using MODIS Terra 250 m imagery to map concentrations of total suspended matter in coastal waters Using MODIS Terra 250 m imagery to map concentrations of total suspended matter in coastal waters
No abstract available.
Authors
R. L. Miller, Brent A. McKee
The depositional history of three freshwater lakes in north central Florida: Brooklyn Lake, Levy's Prairie, and Cowpen Lake The depositional history of three freshwater lakes in north central Florida: Brooklyn Lake, Levy's Prairie, and Cowpen Lake
Florida has approximately 7800 lakes that are heavily concentrated in the north-central part of the state—a mantled karst terrain. Although much research has been conducted in Florida’s lakes, there is not much information on the sedimentary infill. The focus of this research is to define the sedimentary infill of three closely spaced lakes (Brooklyn Lake, Levys Prairie, and Cowpen Lake)...
Authors
Nancy T. DeWitt
Evaluating the effect of salinity on a simulated American Crocodile (Crocodylus acutus) population with applications to conservation and Everglades restoration Evaluating the effect of salinity on a simulated American Crocodile (Crocodylus acutus) population with applications to conservation and Everglades restoration
Everglades restoration will alter the hydrology of South Florida, affecting both water depth and salinity levels in the southern fringes of the Everglades, the habitat of the endangered American crocodile (Crocodylus acutus). A key question is what the effects of these hydrologic changes will be on the crocodile population. Reliable predictions of the viability of endangered species...
Authors
Paul M. Richards, Wolf M. Mooij, Donald L. DeAngelis