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Publications

Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.

Filter Total Items: 5583

Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration

Large Mississippi River (MR) diversions (peak water flow >1416 m3/s and sediment loads >165 kg/s) have been proposed as part of a suite of coastal restoration projects and are expected to rehabilitate and rebuild wetlands to alleviate the significant historic wetland loss in coastal Louisiana. These coastal wetlands are undergoing increasing eustatic sea‐level rise, land subsidence...
Authors
Hongqing Wang, Gregory D. Steyer, Brady Couvillion, Holly J. Beck, John M Rybczyk, Victor H. Rivera-Monroy, Ken W. Krauss, Jenneke M. Visser

Restoration of contaminated ecosystems: adaptive management in a changing climate Restoration of contaminated ecosystems: adaptive management in a changing climate

Three case studies illustrate how adaptive management (AM) has been used in ecological restorations that involve contaminants. Contaminants addressed include mercury, selenium, and contaminants and physical disturbances delivered to streams by urban stormwater runoff. All three cases emphasize the importance of broad stakeholder input early and consistently throughout decision analysis...
Authors
Aida Farag, Diane L. Larson, Jenny Stauber, Ralph Stahl, John Isanhart, Kevin T. McAbee, Christopher J. Walsh

Concepts: Assessing tiger population dynamics using capture–recapture sampling Concepts: Assessing tiger population dynamics using capture–recapture sampling

Capture-recapture can be viewed as an animal survey method in which the count statistic is the total number of animals caught, and the associated detection probability is the probability of capture.
Authors
J. Andrew Royle, Arjun M. Gopalaswamy, Robert Dorazio, James D. Nichols, Devcharan Jathanna, Ravishankar Parameshwaran

Identity, reproductive potential, distribution, ecology and management of invasive Pomacea maculata in the southern United States Identity, reproductive potential, distribution, ecology and management of invasive Pomacea maculata in the southern United States

Established populations of introduced Pomacea maculata, a highly fecund, large species of apple snail native to South America, now occur throughout southeast Asia, in Spain and extensively across the southern United States. Substantial research on nonnative apple snails takes place in Southeast Asia and has frequently identified apple snails as P. canaliculata. That these Asian...
Authors
Romi L. Burks, Jennifer Bernatis, James E. Byers, Jacoby Carter, Charles M. Martin, William G. McDowell, Jess Van Dyke

Tree sampling as a method to assess vapor intrusion potential at a site characterized by VOC-contaminated groundwater and soil Tree sampling as a method to assess vapor intrusion potential at a site characterized by VOC-contaminated groundwater and soil

Vapor intrusion (VI) by volatile organic compounds (VOCs) in the built environment presents a threat to human health. Traditional VI assessments are often time-, cost-, and labor-intensive; whereas traditional subsurface methods sample a relatively small volume in the subsurface and are difficult to collect within and near structures. Trees could provide a similar subsurface sample where...
Authors
Jordan L. Wilson, Matthew A. Limmer, V.A. Samaranayake, John G. Schumacher, Joel G. Burken

Climate and land-use change in wetlands: A dedication Climate and land-use change in wetlands: A dedication

Future climate and land-use change may wreak havoc on wetlands, with the potential to erode their values as harbors for biota and providers of human services. Wetlands are important to protect, particularly because these provide a variety of ecosystem services including wildlife habitat, water purification, flood storage, and storm protection (Mitsch, Bernal, and Hernandez 2015). Without...
Authors
Beth A. Middleton

Distribution and status of five non-native fish species in the Tampa Bay drainage (USA), a hot spot for fish introductions Distribution and status of five non-native fish species in the Tampa Bay drainage (USA), a hot spot for fish introductions

The Tampa Bay region of Florida (USA) is a hot spot for non-native freshwater fishes. However, published information on most non-native fishes in the basin is not current. Systematic sampling efforts targeting non-native fishes in the region were conducted from 2013–2015 by the University of Florida Tropical Aquaculture Laboratory. Data from these recent surveys were analyzed, along with...
Authors
Katelyn M. Lawson, Quenton M. Tuckett, Jared L. Ritch, Leo Nico, Pam Fuller, Richard E. Matheson, Jeffrey E. Hill

Osmoregulation and muscle water control in vitro facing salinity stress of the Amazon fish Oscar Astronotus ocellatus (Cichlidae) Osmoregulation and muscle water control in vitro facing salinity stress of the Amazon fish Oscar Astronotus ocellatus (Cichlidae)

Specimens of Oscar Astronotus ocellatus from a fish farm were abruptly submitted to salt stress of 14 ppt and 20 ppt, for 3 and 8 h to determine their plasma osmolality. Muscle wet body mass change in vitro was analyzed from control freshwater animals. Fish in 14 ppt presented no osmolality distress even after 8 h. In 20 ppt, a slight increase (10%) in plasma osmolality was observed for...
Authors
Silvia M. M. Gutierre, Jessica M. Schulte, Pamela J. Schofield, Viviane Prodocimo

Estimating the high-arsenic domestic-well population in the conterminous United States Estimating the high-arsenic domestic-well population in the conterminous United States

Arsenic concentrations from 20 450 domestic wells in the U.S. were used to develop a logistic regression model of the probability of having arsenic >10 μg/L (“high arsenic”), which is presented at the county, state, and national scales. Variables representing geologic sources, geochemical, hydrologic, and physical features were among the significant predictors of high arsenic. For U.S...
Authors
Joseph D. Ayotte, Laura Medalie, Sharon L. Qi, Lorraine C. Backer, Bernard T. Nolan

The Pleurobemini (Bivalvia: Unionida) revisited: Molecular species delineation using a mitochondrial DNA gene reveals multiple conspecifics and undescribed species The Pleurobemini (Bivalvia: Unionida) revisited: Molecular species delineation using a mitochondrial DNA gene reveals multiple conspecifics and undescribed species

The Pleurobemini (Bivalvia: Unionida) represent approximately one-third of freshwater mussel diversity in North America. Species identification within this group is challenging due to morphological convergence and phenotypic plasticity. Accurate species identification, including characterisation of currently unrecognised taxa, is required to develop effective conservation strategies...
Authors
Kentaro Inoue, David M. Hayes, John L. Harris, Nathan A. Johnson, Cheryl L. Morrison, Michael S. Eackles, Tim King, Jess W. Jones, Eric M. Hallerman, Alan D. Christian, Charles R. Randklev

FEQinput—An editor for the full equations (FEQ) hydraulic modeling system FEQinput—An editor for the full equations (FEQ) hydraulic modeling system

Introduction The Full Equations Model (FEQ) is a computer program that solves the full, dynamic equations of motion for one-dimensional unsteady hydraulic flow in open channels and through control structures. As a result, hydrologists have used FEQ to design and operate flood-control structures, delineate inundation maps, and analyze peak-flow impacts. To aid in fighting floods...
Authors
David S. Ancalle, Pablo J. Ancalle, Marian M. Domanski

Hydrogeology and water quality of sand and gravel aquifers in McHenry County, Illinois, 2009–14, and comparison to conditions in 1979 Hydrogeology and water quality of sand and gravel aquifers in McHenry County, Illinois, 2009–14, and comparison to conditions in 1979

Baseline conditions for the sand and gravel aquifers (groundwater) in McHenry County, Illinois, were assessed using data from a countywide network of 44 monitoring wells collecting continuous water-level data from 2009–14. In 2010, water-quality data were collected from 41 of the monitoring wells, along with five additional monitoring wells available from the U.S. Geological Survey...
Authors
Amy M. Gahala
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