Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5584
Breeding bird census: Planted cottonwood forest -inside levee Breeding bird census: Planted cottonwood forest -inside levee
No abstract available.
Authors
Daniel J. Twedt
Breeding bird census: Bottomland hardwood forest I-IV Breeding bird census: Bottomland hardwood forest I-IV
No abstract available.
Authors
Daniel J. Twedt
Analysis of suspended-sediment concentrations and discharges at four long-term sediment stations in central and southern Illinois, 1975–92 water years Analysis of suspended-sediment concentrations and discharges at four long-term sediment stations in central and southern Illinois, 1975–92 water years
The U.S. Geological Survey and the U.S. Army Corps of Engineers, St. Louis District, have jointly operated four sediment stations in central and southern Illinois since May 1975—Illinois River at Valley City, Kaskaskia River at Cooks Mills, Kaskaskia River near Venedy Station, and Big Muddy River at Murphysboro. A comprehensive analysis of the historical data from these sediment stations...
Authors
Paul J. Terrio
Analysis of non-ortho-PCBs in fish, bird eggs, sediments, soils, and SPMD samples by gas chromatography/high resolution mass spectrometry: Chapter 27 Analysis of non-ortho-PCBs in fish, bird eggs, sediments, soils, and SPMD samples by gas chromatography/high resolution mass spectrometry: Chapter 27
No abstract available.
Authors
Paul H. Peterman, Robert W. Gale, Donald E. Tillitt, Kevin P. Feltz
Marsh vertical accretion in a Southern California Estuary, U.S.A Marsh vertical accretion in a Southern California Estuary, U.S.A
Vertical accretion was measured between October 1992 and March 1994 in low and high saltmarsh zones in the north arm of Tijuana estuary from feldspar market horizons and soil corings. Accretion in the Spartina foliosa low marsh (2-8.5 cm) was related almost entirely to episodic storm-induced river flows between January and March 1993, with daily tidal flooding contributing little or no...
Authors
Donald R. Cahoon, J.C. Lynch, A.N. Powell
Sediment porewater toxicity assessment studies in the vicinity of offshore oil and gas production platforms in the Gulf of Mexico Sediment porewater toxicity assessment studies in the vicinity of offshore oil and gas production platforms in the Gulf of Mexico
As part of a multidisciplinary program to assess the potential long-term impacts of offshore oil and gas exploration and production activities in the Gulf of Mexico, sediment chemical analyses and porewater toxicity tests were conducted in the vicinity of five offshore platforms. Based on data from sea urchin fertilization and embryological development assays, toxicity was observed near...
Authors
R.S. Carr, D.C. Chapman, B.J. Presley, J.M. Biedenbach, L. Robertson, P. Boothe, R. Kilada, T. Wade, P. Montagna
Toxicity of inorganic contaminants, individually and in environmental mixtures, to three endangered fishes (Colorado squawfish, bonytail, and razorback sucker) Toxicity of inorganic contaminants, individually and in environmental mixtures, to three endangered fishes (Colorado squawfish, bonytail, and razorback sucker)
Two life stages of three federally-listed endangered fishes, Colorado squawfish (Ptychocheilus lucius), bonytail (Gila elegans), and razorback sucker (Xyrauchen texanus) were exposed to copper, selenate, selenite, and zinc individually, and to mixtures of nine inorganics in a reconstituted water that simulated the water quality of the middle Green River, Utah. The mixtures simulated...
Authors
Kevin J. Buhl, S. J. Hamilton
Interlaboratory study of precision: Hyalella azteca and Chironomus tentans freshwater sediment toxicity assays Interlaboratory study of precision: Hyalella azteca and Chironomus tentans freshwater sediment toxicity assays
Standard 10-d whole-sediment toxicity test methods have recently been developed by the U.S. Environmental Protection Agency (EPA) for the amphipod Hyalella azteca and the midge Chironomus tentans. An interlaboratory evaluation of method precision was performed using a group of seven to 10 laboratories, representing government, academia, and environmental consulting firms. The test...
Authors
G.A. Burton, T. J. Norberg-King, C.G. Ingersoll, D.A. Benoit, G.T. Ankley, P. V. Winger, J. Kubitz, J.M. Lazorchak, M.E. Smith, E. Greer, F.J. Dwyer, D.J. Call, K.E. Day, P. Kennedy, M. Stinson
Small mammal populations in Maryland meadows during four years of herbicide (brominal®) applications Small mammal populations in Maryland meadows during four years of herbicide (brominal®) applications
The herbicide Brominal® was applied at the recommended rate to one plot in each of three paired 0.6-ha plots; the other three plots were used as controls. Plots were sprayed once in the fall of 1988 and 1989 and twice in the spring of 1990 and 1991. Small mammals were trapped three times during each activity season (April-October) to obtain population estimates before and after spraying...
Authors
D. R. Clark, C.A. Moulton, J.E. Hines, D. J. Hoffman
Proposed environmental monitoring plan for the Bird Island Marine Reserve, Antigua. An Island Resources Foundation Report for the Organization of American States (Performance Contract No.WSC14721) Proposed environmental monitoring plan for the Bird Island Marine Reserve, Antigua. An Island Resources Foundation Report for the Organization of American States (Performance Contract No.WSC14721)
Abstract not supplied at this time
Authors
G. Chambers, V. Garrison
A review of herpetology of the Bahamian archipelago A review of herpetology of the Bahamian archipelago
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd, S.D. Buckner
Description, instructions, and verification for Basinsoft, a computer program to quantify drainage- basin characteristics Description, instructions, and verification for Basinsoft, a computer program to quantify drainage- basin characteristics
Basinsoft is a computer program developed to utilize digital cartographic data to quantify 27 selected morphometric characteristics and optional area-weighted characteristics for a drainage basin. The programs comprising Basinsoft were written in Arc Macro Language (AML), a post-processing language written to run in ARC/INFO, a proprietary geographic information system (GIS). Basinsoft...
Authors
Craig A. Harvey, David A. Eash