Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5657
Herbicides and nitrates in the Iowa River alluvial aquifer prior to changing land use, Iowa County, Iowa, 1996 Herbicides and nitrates in the Iowa River alluvial aquifer prior to changing land use, Iowa County, Iowa, 1996
The Iowa River alluvial aquifer in Iowa County, Iowa (fig. 1), underlies an area of intensive agricultural activity where pesticides and nitrogen-based fertilizers are extensively used. The effects of changing land use on shallow ground-water quality in part of the Iowa River alluvial aquifer are currently being investigated as part of the U.S. Geological Survey (USGS) National Water...
Authors
Mark E. Savoca, Jennifer L. Tobias, Eric M. Sadorf, Trevor L. Birkenholtz
Occurrence of selected herbicides and herbicide degradation products in Iowa's Ground Water, 1995 Occurrence of selected herbicides and herbicide degradation products in Iowa's Ground Water, 1995
Herbicide compounds were prevalent in ground water across Iowa, being detected in 70% of the 106 municipal wells sampled during the summer of 1995. Herbicide degradation products were three of the four most frequently detected compounds for this study. The degradation product alachlor ethanesulfonic acid was the most frequently detected compound (65.1%), followed by atrazine (40.6%), and...
Authors
D.W. Kolpin, S. J. Kalkhoff, D. A. Goolsby, D. A. Sneck-Fahrer, E.M. Thurman
AVHRR imagery used to identify hurricane damage in a forested wetland of Louisiana AVHRR imagery used to identify hurricane damage in a forested wetland of Louisiana
Certain events provide a unique opportunity to test the monitoring capability of AVHBR imagery. On 26 August 1992, Hurricane Andrew passed through Louisiana, impacting a large area of forested wetlands. One response to the widespread defoliation resulting from the hurricane impact was an abnormal bloom of new leaves and new growth in the underlying vegetation between September and...
Authors
Elijah W. Ramsey, D.K. Chappell, D.G. Baldwin
Aromatic hydrocarbon pathology in fish following a large spill into the Nemadji River, Wisconsin, USA Aromatic hydrocarbon pathology in fish following a large spill into the Nemadji River, Wisconsin, USA
On June 30, 1992, a train accident resulted in a rail car releasing 114,000 L of a complex mixture of aromatic hydrocarbons into the Nemadji River, a tributary of Lake Superior near Superior, Wisconsin (Table 1). Although the majority of the spilled material evaporated, damage to aquatic life was extensive. Several thousand fishes were killed and an inestimable number were exposed to low...
Authors
C.A. Caldwell
Hazard assessment of inorganics, individually and in mixtures, to two endangered fish in the San Juan River, New Mexico Hazard assessment of inorganics, individually and in mixtures, to two endangered fish in the San Juan River, New Mexico
Acute toxicity tests were conducted for 96 h with larval Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus) in a reconstituted water quality simulating the San Juan River near Shiprock, New Mexico, to determine biological effect concentrations. Tests were conducted with arsenate, copper, selenate, selenite, zinc, and five mixtures of seven to nine...
Authors
Steven J. Hamilton, Kevin J. Buhl
Investigation into avian mortality in the Playa Lakes region of southeastern New Mexico: Final Report - June 1997 Investigation into avian mortality in the Playa Lakes region of southeastern New Mexico: Final Report - June 1997
This Final Report is a review of work on a cooperative study undertaken by the USGS Biological Resources Division's National Wildlife Health Center (NWHC) and National Wetlands Research Center (NWRC; formerly the Southern Science Center) from 1994 through 1997. The study was initiated at the request of the Bureau of Land Management (BLM), through a request to the former National...
Authors
F. Joshua Dein, Laurie A. Baeten, Melody K. Moore, Michael D. Samuel, Paul D. Miller, Christopher Murphy, Steven Sissler, Clinton W. Jeske, Joseph R. Jehl, J. S. Yaeger, B. Bauer, Shiela A. Mahoney
Status and restoration of the Etowah River, an imperiled Southern Appalachian Ecosystem Status and restoration of the Etowah River, an imperiled Southern Appalachian Ecosystem
Abstract not supplied at this time
Authors
N.M. Burkhead, S. J. Walsh, B. J. Freeman, J.D. Williams
Acute toxicity of fire-retardant and foam-suppressant chemicals to yalella azteca (Saussure) Acute toxicity of fire-retardant and foam-suppressant chemicals to yalella azteca (Saussure)
Acute toxicity tests were conducted with Hyalella azteca Saussure (an amphipod) exposed in soft and hard waters to three fire retardants (Fire-Trol GTS-R, Fire-Trol LCG-R, and Phos-Chek D75-F) and two foam suppressants (Phos-Chek WD-881 and Silv-Ex). The chemicals were slightly to moderately toxic to amphipods. The most toxic chemical to amphipods in soft and hard water was Phos-Chek WD...
Authors
Susan F. McDonald, Steven J. Hamilton, Kevin J. Buhl, James F. Heisinger
Cutthroat trout avoidance of metals and conditions characteristic of a mining waste site: Coeur d'Alene River, Idaho Cutthroat trout avoidance of metals and conditions characteristic of a mining waste site: Coeur d'Alene River, Idaho
The South Fork basin of the Coeur d'Alene River, Idaho has been an area of heavy mining activity since the 1880s. The mining operations have resulted in elevated concentrations of metals in surface water, most notably cadmium, lead, zinc, and, to a lesser extent, copper. The metals affected surface water quality downstream in the Coeur d'Alene basin and are suspected to be one of the...
Authors
Daniel F. Woodward, Jack N. Goldstein, Aida M. Farag, William G. Brumbaugh
Coastal wetlands and climate change Coastal wetlands and climate change
Abstract has not been submitted
Authors
G.R. Guntenspergen, B.A. Vairin, V.R. Burkett, D. McGrath
Facing the challenges of invasive alien species in North America Facing the challenges of invasive alien species in North America
Abstract not supplied at this time
Authors
I.E. Effort, C. Macias Garcia, J.D. Williams