Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5566
Lepidopteran and odonate communities in the Cajun Prairie ecosystem in southwestern Louisiana Lepidopteran and odonate communities in the Cajun Prairie ecosystem in southwestern Louisiana
No abstract available.
Authors
Malcolm Vidrine, Charles Allen, Bruno Borsari, Larry K. Allain
Potential consequences of climate variability and change for the Southeastern United States Potential consequences of climate variability and change for the Southeastern United States
No abstract available.
Authors
Virginia Burkett, Ronald Ritschard, Steven McNulty, J. J. O’Brien, Robert C. Abt, James Jones, Upton Hatch, Brian Murray, Shrikant Jagtap, Jim Cruise
Biosecurity and regulatory considerations for transfer of cryopreserved sperm and early life stages of aquatic species Biosecurity and regulatory considerations for transfer of cryopreserved sperm and early life stages of aquatic species
No abstract available.
Authors
Terrence R. Tiersch, Jill A. Jenkins
Recent colonization of mangroves and nesting frigatebirds at Dry Tortugas Recent colonization of mangroves and nesting frigatebirds at Dry Tortugas
No abstract available.
Authors
Thomas Doyle, Thomas C. Michot, Richard H. Day, Christopher J. Wells
Regulation of subcellular localization of the Aryl Hydrocarbon Receptor (AhR) Regulation of subcellular localization of the Aryl Hydrocarbon Receptor (AhR)
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that mediates the toxicity of dioxin and other xenobiotics. In the absence of exogenous ligand, AhR is cytosolic. We investigated how AhR is retained in the cytosol and how dioxin induces AhR to move to the nucleus. Disruption of nuclear export of AhR by the nuclear export inhibitor leptomycin B (LMB) or by...
Authors
Cathy A. Richter, Donald E. Tillitt, Mark Hannink
Cross-hole radar scanning of two vertical, permeable, reactive-iron walls at the Massachusetts Military Reservation, Cape Cod, Massachusetts Cross-hole radar scanning of two vertical, permeable, reactive-iron walls at the Massachusetts Military Reservation, Cape Cod, Massachusetts
A pilot-scale study was conducted by the U.S. Army National Guard (USANG) at the Massachusetts Military Reservation (MMR) on Cape Cod, Massachusetts, to assess the use of a hydraulic-fracturing method to create vertical, permeable walls of zero-valent iron to passively remediate ground water contaminated with chlorinated solvents. The study was conducted near the source area of the...
Authors
John W. Lane, Peter K. Joesten, Jennifer G. Savoie
Floods of July 19-25, 1999, in the Wapsipinicon and Cedar River basins, northeast Iowa Floods of July 19-25, 1999, in the Wapsipinicon and Cedar River basins, northeast Iowa
Severe flooding occurred during July 19-25, 1999, in the Wapsipinicon and Cedar River Basins following two thunderstorms over northeast Iowa. During July 18-19, as much as 6 inches of rainfall was centered over Cerro Gordo, Floyd, Mitchell, and Worth Counties. During July 20-21, a second storm occurred in which an additional rainfall of as much as 8 inches was centered over Chickasaw and...
Authors
J.L. Ballew, D. A. Eash
Techniques for estimating flood-frequency discharges for streams in Iowa Techniques for estimating flood-frequency discharges for streams in Iowa
A statewide study was conducted to develop regression equations for estimating flood-frequency discharges for ungaged stream sites in Iowa. Thirty-eight selected basin characteristics were quantified and flood-frequency analyses were computed for 291 streamflow-gaging stations in Iowa and adjacent States. A generalized-skew-coefficient analysis was conducted to determine whether...
Authors
David A. Eash
Development of marine toxicity data for ordnance compounds Development of marine toxicity data for ordnance compounds
A toxicity database for ordnance compounds was generated using eight compounds of concern and marine toxicity tests with five species from different phyla. Toxicity tests and endpoints included fertilization success and embryological development with the sea urchin Arbacia punctulata; zoospore germination, germling length, and cell number with the green macroalga Ulva fasciata; survival...
Authors
M. Nipper, R.S. Carr, J.M. Biedenbach, R.L. Hooten, K. Miller, S. Saepoff
The importance of propagule establishment and physical factors in mangrove distributional patterns in a Costa Rican estuary The importance of propagule establishment and physical factors in mangrove distributional patterns in a Costa Rican estuary
Establishment of Laguncularia racemosa, Avicennia germinans, and A. bicolor was measured along intertidal gradients (mud bank (MB), lower intertidal (LI), and upper intertidal (UI)) on point bars and islands in a Costa Rican tropical estuary. Successful establishment showed the following order — Laguncularia: LI (73%)>MB (52%)>UI (18%), with UI significantly lower than LI and MB...
Authors
P. Delgado, P.F. Hensel, J.W. Day
Effects of remedial grouting on the ground-water flow system at Red Rock Dam near Pella, Iowa Effects of remedial grouting on the ground-water flow system at Red Rock Dam near Pella, Iowa
Previous studies have shown direct evidence of under-seepage at Red Rock Dam on the Des Moines River near Pella, Iowa. Underseepage is thought to occur primarily on the northeast side of the dam in the lower bedrock of the St. Louis Limestone, which consists of discontinuous basal evaporite beds and an overlying cavity zone. Because of concerns about the integrity of the dam, the U.S...
Authors
S. Mike Linhart, Bryan D. Schaap
Observations on the occurrence and food habits of double-crested cormorants and neotropic cormorants in south Louisiana crawfish ponds Observations on the occurrence and food habits of double-crested cormorants and neotropic cormorants in south Louisiana crawfish ponds
No abstract available.
Authors
J.V. Huner, Clinton W. Jeske