Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
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Magnitude and frequency of peak discharges for Mississippi River Basin Flood of 1993 Magnitude and frequency of peak discharges for Mississippi River Basin Flood of 1993
The magnitude and frequency of the 1993 peak discharges in the upper Mississippi River Basin are characterized by applying Bulletin 17B and L-moment methods to annual peak discharges at 115 unregulated watersheds in the basin. The analysis indicated that the 1993 flood was primarily a 50-year or less event on unregulated watersheds less than about 50,000 km2 (20,000 mi2). Of the 115...
Authors
W.O. Thomas, D. A. Eash
Brown trout avoidance of metals in water characteristic of the Clark Fork River, Montana Brown trout avoidance of metals in water characteristic of the Clark Fork River, Montana
The avoidance response of brown trout (Salmo trutta) to mixtures of cadmium, copper, lead, and zinc was determined in water simulating the Clark Fork River, Montana. Effects of acidification on the avoidance response were also evaluated. Tests were conducted in a cylindrical chamber that received reference water at one end and metal-contaminated water at the other; a distinct boundary...
Authors
Daniel F. Woodward, James A. Hansen, Harold L. Bergman, Aaron J. DeLonay, Edward E. Little
Urban stormwater runoff study at Davenport, Iowa Urban stormwater runoff study at Davenport, Iowa
Urban storm water runoff is being investigated as a nonpoint source of pollution across the country as urban areas with populations over 100,000 conduct studies designed to meet U.S. Environmental Protection Agency guidelines for National Pollutant Discharge Elimination System permits for their stormwater discharges. From 1991 through 1994, the City of Davenport, Iowa (fig. 1), and the U...
Authors
Bryan D. Schaap
Hazard assessment of inorganics to three endangered fish in the Green River, Utah Hazard assessment of inorganics to three endangered fish in the Green River, Utah
Acute toxicity tests were conducted with three life stages of Colorado squawfish (Ptychocheilus lucius), razorback sucker (Xyrauchen texanus), and bonytail (Gila elegans) in a reconstituted water quality simulating the middle part of the Green River of Utah. Tests were conducted with boron, lithium, selenate, selenite, uranium, vanadium, and zinc. The overall rank order of toxicity to...
Authors
S. J. Hamilton
The rare newt of Trail Ridge The rare newt of Trail Ridge
Abstract not supplied at this time
Authors
C.K. Dodd
Nonindigenous fish Nonindigenous fish
Abstract not supplied at this time
Authors
C.P. Boydstun, P.L. Fuller, J.D. Williams
Freshwater mussels: a neglected and declining aquatic resource Freshwater mussels: a neglected and declining aquatic resource
Abstract not supplied at this time
Authors
J.D. Williams, R. J. Neves
Automated HPLC fractionation of PCDDs and PCDFs and planar and nonplanar PCBs on C18-dispersed PX-21 carbon Automated HPLC fractionation of PCDDs and PCDFs and planar and nonplanar PCBs on C18-dispersed PX-21 carbon
No abstract available.
Authors
Kevin P. Feltz, Donald E. Tillitt, Robert W. Gale, Paul H. Peterman
Biogeography and status of the striped newt (Notophthalmus perstriatus) in Georgia, USA Biogeography and status of the striped newt (Notophthalmus perstriatus) in Georgia, USA
Abstract not supplied at this time
Authors
C.K. Dodd, L.V. LaClaire
Size-dependent, sex-dependent and seasonal changes in insulin-lige growth-factor-I in the loggerhead sea turtle Size-dependent, sex-dependent and seasonal changes in insulin-lige growth-factor-I in the loggerhead sea turtle
This study examines size-dependent, sex-dependent, and seasonal fluctuations in plasma insulin-like growth factor-I (IGF-I) concentrations in loggerhead sea turtles (Caretta caretta). Loggerhead turtles (n = 158) were captured in shrimp trawler nets during a 12-month survey in Cape Canaveral Channel, Florida. Plasma samples were analyzed using a validated heterologous radioimmunoassay...
Authors
D.A. Crain, A.B. Bolten, K.A. Bjorndal, L. J. Guillette, T. S. Gross
Toxicity and bioaccumulation of sediment-associated contaminants using freshwater invertebrates: A review of methods and applications Toxicity and bioaccumulation of sediment-associated contaminants using freshwater invertebrates: A review of methods and applications
This paper reviews recent developments in methods for evaluating the toxicity and bioaccumulation of contaminants associated with freshwater sediments and summarizes example case studies demonstrating the application of these methods. Over the past decade, research has emphasized development of more specific testing procedures for conducting 10-d toxicity tests with the amphipod Hyalella...
Authors
C.G. Ingersoll, G.T. Ankley, D.A. Benoit, E.L. Brunson, G.A. Burton, F.J. Dwyer, R.A. Hoke, P.F. Landrum, T. J. Norberg-King, P. V. Winger