Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5567
Threatened fishes of the world: Noturus placidus Taylor, 1969 (Ictaluridae) Threatened fishes of the world: Noturus placidus Taylor, 1969 (Ictaluridae)
No abstract available.
Authors
Janice L. Bryan, Mark L. Wildhaber, Douglas B. Noltie
Degradates provide insight to spatial and temporal trends of herbicides in ground water Degradates provide insight to spatial and temporal trends of herbicides in ground water
Since 1995, a network of municipal wells in Iowa, representing all major aquifer types (alluvial, bedrock/karst region, glacial drift, bedrock/nonkarst region), has been repeatedly sampled for a broad suite of herbicide compounds yielding one of the most comprehensive statewide databases of such compounds currently available in the United States. This dataset is ideal for documenting the...
Authors
D.W. Kolpin, D.J. Schnoebelen, E.M. Thurman
Intra-strain dioxin sensitivity and morphometric effects in swim-up rainbow trout (Oncorhynchus mykiss) Intra-strain dioxin sensitivity and morphometric effects in swim-up rainbow trout (Oncorhynchus mykiss)
Inter and intra-specific differences in sensitivity of early life stage salmonids to 2,3,7,8-TCDD exposure have been reported, but intra-strain differences have not been found in the literature. Our results indicate that intra-strain variability in terms of embryo mortality (LD50) is small in Eagle Lake strain of rainbow trout, LD50 values ranging from 285 to 457 pg TCDD egg g−1. These...
Authors
Paulo S. M. Carvalho, Douglas B. Noltie, D. E. Tillitt
Hazard assessment of a simulated oil spill on intertidal areas of the St. Lawrence River with SPMD-TOX Hazard assessment of a simulated oil spill on intertidal areas of the St. Lawrence River with SPMD-TOX
Phytoremediation in a simulated crude oil spill was studied with a “minimalistic” approach. The SPMD-TOX paradigm—a miniature passive sorptive device to collect and concentrate chemicals and microscale tests to detect toxicity—was used to monitor over time the bioavailability and potential toxicity of an oil spill. A simulated crude oil spill was initiated on an intertidal freshwater...
Authors
B. Thomas Johnson, J. D. Petty, J.N. Huckins, Kenneth Lee, J. Gauthier
Population characteristics of Siren lacertina and Amphiuma means in north Florida Population characteristics of Siren lacertina and Amphiuma means in north Florida
Abstract not supplied at this time
Authors
K. Sorensen
Perspective on eastern migration studies: Stopover ecology of migratory landbirds in the Gulf Coast region Perspective on eastern migration studies: Stopover ecology of migratory landbirds in the Gulf Coast region
Millions of Nearctic-Neotropical landbirds move through the coastal habitats of the Gulf of Mexico each spring and autumn as they migrate across and around the Gulf. Migration routes in the Gulf region are not static and they shift year to year and season to season according to prevailing wind patterns. Using data from field and radar studies, we mapped patterns of migration movement and...
Authors
W.C. Barrow, L.A. Johnson Randall
Summary of total mercury concentrations in fillets of selected sport fishes collected during 2000-2003 from Lake Natoma, Sacramento County, California Summary of total mercury concentrations in fillets of selected sport fishes collected during 2000-2003 from Lake Natoma, Sacramento County, California
This report summarizes results of total mercury measurements in skinless fillets of sport fishes collected during August 2000, September?October 2002, and July 2003 from Lake Natoma, a small (8,760 acre-feet) afterbay for Folsom Dam on the lower American River. The primary objective of the study was to determine if mercury concentrations in fillets approached or exceeded guidelines for...
Authors
Michael K. Saiki, Darrell G. Slotton, Thomas W. May, Shaun M. Ayers, Charles N. Alpers
Water resources data, Iowa, water year 2003--Volume 1. Surface water and precipitation Water resources data, Iowa, water year 2003--Volume 1. Surface water and precipitation
Water resources data for Iowa for the 2003 water year consists of records of stage, discharge, and water quality of streams; stage, and/or contents of lakes and reservoirs; ground-water levels and water quality of ground-water wells. This report volume contains discharge records for 134 gaging stations; stage or contents for 9 lakes and reservoirs and 3 streams; water quality for 4...
Authors
G.M. Nalley, J.G. Gorman, R.D. Goodrich, V.E. Miller
Physical aquatic habitat assessment data, Ozark plateaus, Missouri and Arkansas Physical aquatic habitat assessment data, Ozark plateaus, Missouri and Arkansas
This report presents data from two related studies on physical habitat in small streams in the Ozark Plateaus Physiographic Province of Missouri and Arkansas. Seventy stream reaches and their contributing drainage basins were assessed using a physical habitat protocol designed to optimize understanding of how stream reach characteristics relate to drainage-basin characteristics. Drainage...
Authors
Robert B. Jacobson, Harold E. Johnson, Joanna M. Reuter, Maria Panfil Wright
Overview and comparison of lipid-containing semipermeable membrane devices and oysters (Crassostrea gigas) for assessing organic chemical exposure Overview and comparison of lipid-containing semipermeable membrane devices and oysters (Crassostrea gigas) for assessing organic chemical exposure
We performed 20-d, flow-through exposures of lipid-containing semipermeable membrane devices (SPMDs) and Pacific oysters (Crassostrea gigas) to three concentrations (nominally 10, 100, and 250 ng/L) of a diverse mixture of polycyclic aromatic hydrocarbons (PAHs). Exposure water was seawater free of particulates larger than 0.1 μm. The results of these controlled laboratory studies...
Authors
J.N. Huckins, H.F. Prest, J. D. Petty, J.A. Lebo, M.M. Hodgins, R.C. Clark, D.A. Alvarez, W.R. Gala, A. Steen, R. Gale, C.G. Ingersoll
Dynamic consequences of allochthonous nutrient input into freshwater systems Dynamic consequences of allochthonous nutrient input into freshwater systems
Abstract not supplied at this time
Authors
D.L. DeAngelis, P. J. Mulholland