Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5586
Toxicological and chemical screening of Antarctica sediments: Use of whole sediment toxicity tests, microtox, mutatox and semipermeable membrane devices (SPMDs) Toxicological and chemical screening of Antarctica sediments: Use of whole sediment toxicity tests, microtox, mutatox and semipermeable membrane devices (SPMDs)
Eight whole sediment samples from Antarctica (four from Winter Quarters Bay and four from McMurdo Sound) were toxicologically and chemically evaluated. Also, the influence of ultraviolet radiation on the toxicity and bioavailability of contaminants associated with the sediment samples was assessed. The evaluations were accomplished by use of a 10-day whole sediment test with Leptocheirus
Authors
Laverne Cleveland, Edward E. Little, Jimmie D. Petty, B. Thomas Johnson, Jon A. Lebo, Carl E. Orazio, Jane Dionne
Global change and submerged aquatic vegetation research Global change and submerged aquatic vegetation research
Communities of submerged aquatic vegetation (SAY) are important components of many freshwater, brackish, and marine aquatic ecosystems. They prevent erosion by baffling the impacts of waves, especially from storms. These aquatic plant communities remove nutrients and other pollutants from river and runoff inputs to coastal areas, preventing their entry into surrounding waters. They...
Authors
H.A. Neckles, G.R. Guntenspergen, W.M. Rizzo, T.C. Michot
Flood of July 9-11, 1993, in the Raccoon River basin, west-central Iowa Flood of July 9-11, 1993, in the Raccoon River basin, west-central Iowa
Water-surface-elevation profiles and peak discharges for the flood of July 9-11, 1993, in the Raccoon River Basin, west-central Iowa, are presented in this report. The profiles illustrate the 1993 flood along the Raccoon, North Raccoon, South Raccoon, and Middle Raccoon Rivers and along Brushy and Storm Creeks in the west-central Iowa counties of Carroll, Dallas, Greene, Guthrie, and...
Authors
D. A. Eash, B.A. Koppensteiner
Agricultural chemicals in Iowa's ground water, 1982-95: What are the trends? Agricultural chemicals in Iowa's ground water, 1982-95: What are the trends?
The Iowa Department of Natural Resources. Geological Survey Bureau: the University of Iowa Hygienic Laboratory; and the U.S. Geological Survey (USGS) have been working together to address this question. As part of the Iowa Ground-Water Monitoring Program (IGWM). water samples have been collected from selected Iowa municipal wells since 1982. An examination of this data identified two...
Authors
Dana W. Koplin, George Hallberg, D. A. Sneck-Fahrer, Robert Libra
Blue catfish (Ictalurus furcatus ; Ictaluridae) predation on the zebra mussel in the Ohio River near Paducah, Kentucky Blue catfish (Ictalurus furcatus ; Ictaluridae) predation on the zebra mussel in the Ohio River near Paducah, Kentucky
Abstract not supplied at this time
Authors
J.J. Herod, T.L. Frye, James B. Sickel
Modeling fish dynamics and effects of stress in a hydrologically pulsed ecosystem Modeling fish dynamics and effects of stress in a hydrologically pulsed ecosystem
Many wetlands undergo seasonal cycles in precipitation and water depth. This environmental seasonality is echoed in patterns of production of fish biomass, which, in turn, influence the phenology of other components of the food web, including wading birds. Human activities, such as drainage or other alterations of the hydrology, can exacerbate these natural cycles and result in...
Authors
D.L. DeAngelis, W.F. Loftus, J.C. Trexler, Robert E. Ulanowicz
Water resources data, Iowa, water year 1996 Water resources data, Iowa, water year 1996
No abstract available.
Authors
J.E. May, J.G. Gorman, R.D. Goodrich, M.W. Bobier, V.E. Miller
Hydraulic analyses of alternative methods for reducing backwater from log jams on Locust Creek near Pershing State Park, Linn County, Missouri Hydraulic analyses of alternative methods for reducing backwater from log jams on Locust Creek near Pershing State Park, Linn County, Missouri
No abstract available.
Authors
T.W. Alexander
Evaluation of drawdown and sources of water in the Mississippi River alluvium caused by hypothetical pumping, Muscatine, Iowa Evaluation of drawdown and sources of water in the Mississippi River alluvium caused by hypothetical pumping, Muscatine, Iowa
A study was conducted to evaluate drawdown and volumetric changes in sources of water in the Mississippi River alluvium caused by hypothetical pumping. A steady-state, ground-water flow model was constructed for a previous study to simulate February 1993 hydrologic conditions, which were assumed to be an acceptable estimate of the ground-water system at equilibrium. The flow model was...
Authors
K.J. Lucey
Effects of the 1993 flood on the determination of flood magnitude and frequency in Iowa Effects of the 1993 flood on the determination of flood magnitude and frequency in Iowa
To evaluate the effects of the 1993 flood in the upper Mississippi River Basin on the determination of flood magnitude and frequency, discharges that had recurrence intervals of 10, 25, 50, and 100 years computed from data through the 1992 water year were compared with those computed from data through the 1993 water year for 62 selected streamflow-gaging stations in Iowa. On the basis of...
Authors
David A. Eash
The jumping crocs of the Adelaide River The jumping crocs of the Adelaide River
Abstract not supplied at this time
Authors
C.K. Dodd