Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5565
Invertebrate response to changes in streamflow hydraulics in two urban areas in the United States Invertebrate response to changes in streamflow hydraulics in two urban areas in the United States
Stream hydrology is foundational to aquatic ecosystems and has been shown to be a structuring element for fish and invertebrates. The relations among urbanization, hydraulics, and invertebrate communities were investigated by the U.S. Geological Survey, National Water-Quality Assessment Program by using measures of stream hydraulics in two areas of the United States. Specifically, the...
Authors
Rodney R. Knight, Thomas F. Cuffney
Deposition and accumulation of airborne organic contaminants in Yosemite National Park, Calfornia Deposition and accumulation of airborne organic contaminants in Yosemite National Park, Calfornia
Deposition and accumulation of airborne organic contaminants in Yosemite National Park were examined by sampling atmospheric deposition, lichen, zooplankton, and lake sediment at different elevations. Passive samplers were deployed in high‐elevation lakes to estimate surface‐water concentrations. Detected compounds included current‐use pesticides chlorpyrifos, dacthal, and endosulfans...
Authors
Alisa M. Mast, David A. Alvarez, Steven D. Zaugg
Well network installation and hydrogeologic data collection, Assateague Island National Seashore, Worcester County, Maryland, 2010 Well network installation and hydrogeologic data collection, Assateague Island National Seashore, Worcester County, Maryland, 2010
The U.S. Geological Survey, as part of its Climate and Land Use Change Research and Development Program, is conducting a multi-year investigation to assess potential impacts on the natural resources of Assateague Island National Seashore, Maryland that may result from changes in the hydrologic system in response to projected sea-level rise. As part of this effort, 26 monitoring wells...
Authors
William S.L. Banks, John P. Masterson, Carole D. Johnson
Limitations and potential of satellite imagery to monitor environmental response to coastal flooding Limitations and potential of satellite imagery to monitor environmental response to coastal flooding
Storm-surge flooding and marsh response throughout the coastal wetlands of Louisiana were mapped using several types of remote sensing data collected before and after Hurricanes Gustav and Ike in 2008. These included synthetic aperture radar (SAR) data obtained from the (1) C-band advance SAR (ASAR) aboard the Environmental Satellite, (2) phased-array type L-band SAR (PALSAR) aboard the...
Authors
Elijah W. Ramsey, Dirk Werle, Yukihiro Suzuoki, Amina Rangoonwala, Zhong Lu
Development and implementation of a regression model for predicting recreational water quality in the Cuyahoga River, Cuyahoga Valley National Park, Ohio 2009-11 Development and implementation of a regression model for predicting recreational water quality in the Cuyahoga River, Cuyahoga Valley National Park, Ohio 2009-11
The Cuyahoga River within Cuyahoga Valley National Park (CVNP) is at times impaired for recreational use due to elevated concentrations of Escherichia coli (E. coli), a fecal-indicator bacterium. During the recreational seasons of mid-May through September during 2009–11, samples were collected 4 days per week and analyzed for E. coli concentrations at two sites within CVNP. Other water...
Authors
Amie M. G. Brady, Meg B. Plona
Fecal-indicator bacteria concentrations in the Illinois River between Hennepin and Peoria, Illinois: 2007-08 Fecal-indicator bacteria concentrations in the Illinois River between Hennepin and Peoria, Illinois: 2007-08
The Illinois Environmental Protection Agency has designated portions of the Illinois River in Peoria, Woodford, and Tazewell Counties, Illinois, as impaired owing to the presence of fecal coliform bacteria. The U.S. Geological Survey, in cooperation with the Tri-County Regional Planning Commission, examined the water quality in the Illinois River and major tributaries within a 47-mile...
Authors
David H. Dupre, Jon Hortness, Paul J. Terrio, Jennifer B. Sharpe
Bioaccumulation and toxicity of selenium during a life-cycle exposure with desert pupfish (Cyprinodon macularius) Bioaccumulation and toxicity of selenium during a life-cycle exposure with desert pupfish (Cyprinodon macularius)
Populations of desert pupfish (Cyprinodon macularius; pupfish), a federally-listed endangered species, inhabit irrigation drains in the Imperial Valley agricultural area of southern California. These drains have varying degrees of selenium (Se) contamination of water, sediment, and aquatic biota. Published Se toxicity studies suggest that these levels of Se contamination may pose risk of...
Authors
John M. Besser, William G. Brumbaugh, Diana M. Papoulias, Chris D. Ivey, James L. Kunz, Mandy Annis, Christopher G. Ingersoll
Water-quality, bed-sediment, and discharge data for the Mississippi River-Gulf Outlet and adjacent waterways, southeastern Louisiana, August 2008 through December 2009 Water-quality, bed-sediment, and discharge data for the Mississippi River-Gulf Outlet and adjacent waterways, southeastern Louisiana, August 2008 through December 2009
The Mississippi River-Gulf Outlet navigation channel (MRGO) was constructed in the early 1960s to provide a safer and shorter route between the Gulf of Mexico and the Port of New Orleans for deep-draft, ocean-going vessels and to promote the economic development of the Port of New Orleans. In 2006, the U.S. Army Corps of Engineers developed a plan to de-authorize the MRGO. The plan...
Authors
Christopher M. Swarzenski, Scott V. Mize, John K. Lovelace
Neotropical coastal wetlands Neotropical coastal wetlands
No abstract available.
Authors
Karen L. McKee
Manning's roughness coefficient for Illinois streams Manning's roughness coefficient for Illinois streams
Manning's roughness coefficients for 43 natural and constructed streams in Illinois are reported and displayed on a U.S. Geological Survey Web site. At a majority of the sites, discharge and stage were measured, and corresponding Manning's coefficients—the n-values—were determined at more than one river discharge. The n-values discussed in this report are computed from data representing...
Authors
David T. Soong, Crystal D. Prater, Teresa M. Halfar, Loren A. Wobig
Response to comments on "Productivity is a poor predictor of plant species richness" Response to comments on "Productivity is a poor predictor of plant species richness"
Pan et al. claim that our results actually support a strong linear positive relationship between productivity and richness, whereas Fridley et al. contend that the data support a strong humped relationship. These responses illustrate how preoccupation with bivariate patterns distracts from a deeper understanding of the multivariate mechanisms that control these important ecosystem...
Authors
James B. Grace, Peter B. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia R. O’Halloran, T. Michael Anderson, Jonathan D. Bakker, Cynthia S. Brown, Yvonne M. Buckley, Scott L. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole M. DeCrappeo, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Nicole Hagenah, Virginia L. Jin, Kevin P. Kirkman, Johannes M.H. Knops, Kimberly J. La Pierre, John G. Lambrinos, Brett A. Melbourne, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, John L. Orrock, Suzanne M. Prover, Carly J. Stevens, Peter D. Wragg, Louie H. Yang
Estimating shorebird populations during spring stopover in rice fields of the Louisiana and Texas Gulf Coastal Plain Estimating shorebird populations during spring stopover in rice fields of the Louisiana and Texas Gulf Coastal Plain
Migrating shorebird populations using approximately 2% of Louisiana and Texas Gulf Coastal rice fields were surveyed during spring migration (March–May of 1997 and 1998) using biweekly stratified random surveys conducted at 50 roadside survey points and approximately 30,000 shorebirds were observed. Shorebird counts were extrapolated and almost 1.4 million birds in 1997 and over 1.6...
Authors
Wayne Norling, Clinton W. Jeske, Tyler F. Thigpen, Paul C. Chadwick