Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5583
Secondary contact erodes Pleistocene diversification in a wide-ranging freshwater mussel (Quadrula) Secondary contact erodes Pleistocene diversification in a wide-ranging freshwater mussel (Quadrula)
The isolated river drainages of eastern North America serve as a natural laboratory to investigate the roles of allopatry and secondary contact in the evolutionary trajectories of recently diverged lineages. Drainage divides facilitate allopatric speciation, but due to their sensitivity to climatic and geomorphological changes, neighboring rivers frequently coalesce, creating recurrent
Authors
Sean M. Keogh, Nathan Johnson, Chase H. Smith, Bernard E. Sietman, Jeffrey T. Garner, Charles R. Randklev, Andrew M. Simons
Inset groundwater-flow models for the Cache and Grand Prairie Critical Groundwater Areas, northeastern Arkansas Inset groundwater-flow models for the Cache and Grand Prairie Critical Groundwater Areas, northeastern Arkansas
The water resources in the Mississippi alluvial plain, located in parts of Missouri, Kentucky, Tennessee, Mississippi, Louisiana, and Arkansas, supports a multibillion-dollar agricultural industry that relies heavily on pumping of groundwater for irrigation of crops and aquaculture. The primary source of groundwater for agricultural-related pumping is the Mississippi River Valley...
Authors
Jonathan P. Traylor, Leslie L. Duncan, Andrew T. Leaf, Alec R. Weisser, Benjamin J. Dietsch, Moussa Guira
Potential corrosivity of untreated groundwater in Louisiana Potential corrosivity of untreated groundwater in Louisiana
Corrosive groundwater can cause lead, copper, and other metals to leach from pipes and plumbing fixtures in water distribution systems. Metals, if ingested, could lead to serious health implications to the nearly 2.9 million people in Louisiana who obtain their drinking water from groundwater sources. Four indices—the Langelier Saturation Index (LSI), Ryznar Stability Index (RSI)...
Authors
Angela L. Robinson
Individual return patterns of spawning flannelmouth sucker (Catostomus latipinnis) to a desert river tributary Individual return patterns of spawning flannelmouth sucker (Catostomus latipinnis) to a desert river tributary
Tributaries provide temporal and spatial habitat heterogeneity in river networks that can be critical for parts of the life history of a species. Tributary fidelity can benefit individual fish undergoing spawning migrations by reducing time and energy spent exploring new areas and leveraging previous experience, but anthropogenic activities that fragment or degrade these systems can...
Authors
Sophia Marie Bonjour, Keith B. Gido, Charles N. Cathcart, Mark C. McKinstry
The LTAR cropland Common Experiment at Lower Chesapeake Bay The LTAR cropland Common Experiment at Lower Chesapeake Bay
The Lower Chesapeake Bay (LCB) Long-Term Agroecosystem Research (LTAR) Common Experiment (CE) located in Beltsville, MD, focuses on research of concern to producers of the major regional crops, which are corn (Zea mays L.), soybean [Glycine max (L.) Merr.], wheat (Triticum aestivum L.), and various forage species. Livestock production in the region includes broiler and laying chickens...
Authors
Gwen Bagley, Victoria E.P. Ackroyd, Michelle A. Cavagielli, K. E. White, Harry H. Schomberg, E.P. Law, K. Bejleri, W. Dean Hively, M.H.H. Fischel, Jude E. Maul, Cathleen J. Hapeman, Gregory W. McCarty, Wayne Dulaney, Dennis J. Timlin, Steven B. Mirsky
Warmwater fish in rivers Warmwater fish in rivers
In addition to the gears described in the previous version, this edition includes an updated water body definition that is inclusive of Mexico and Canada as well as standard methods for the use of cast nets in warmwater rivers. There were organizational changes in the trawling and hoop-net sections to make them consistent with the format for this edition, but the methods themselves have...
Authors
Brenda M. Pracheil, Patrick Braaten, Everardo Barba Macias, Christopher S. Guy, David P Herzog, Martin J. Hamel, John C Justice, Alison R Loeppky, Jon M Mollish, Jeffrey W Simmons, Sara J. Tripp
In vitro impacts of glyphosate on manatee lymphocytes In vitro impacts of glyphosate on manatee lymphocytes
Exposure to contaminants, such as the herbicide glyphosate, can suppress protective immune functions. Glyphosate is the herbicide most used worldwide and has been found in the plasma of more than 50 % of the Florida manatees (Trichechus manatus latirostris) and all-year-round in their aquatic environment. Our objectives were to analyze the consequences of glyphosate exposure on their...
Authors
Maite De Maria, Natalia Garcia-Reyero, Nicole I. Stacy, Jeffrey R. Abbott, Fahong Yu, Ruyiu Pu, Kevin J. Kroll, Francisco R. Barboza, Michael T. Walsh, Juan G. Perez-Jimenez, David A. Moraga Amador, Margaret Hunter, Nancy D. Denslow
Early detection of wildlife disease pathogens using CRISPR-Cas system methods Early detection of wildlife disease pathogens using CRISPR-Cas system methods
Wildlife diseases are a considerable threat to human health, conservation, and the economy. Surveillance is a critical component to mitigate the impact of animal diseases in these sectors. To monitor human diseases, CRISPR-Cas (clustered regularly interspaced short palindromic repeats-CRISPR-associated protein) biosensors have proven instrumental as diagnostic tools capable of detecting...
Authors
Adam Alberto Perez, Guelaguetza Vazquez-Meves, Margaret Hunter
Identifying and filling critical knowledge gaps can optimize financial viability of blue carbon projects in tidal wetlands Identifying and filling critical knowledge gaps can optimize financial viability of blue carbon projects in tidal wetlands
One of the world’s largest “blue carbon” ecosystems, Louisiana’s tidal wetlands on the US Gulf of Mexico coast, is rapidly being lost. Louisiana’s strong legal, regulatory, and monitoring framework, developed for one of the world’s largest tidal wetland systems, provides an opportunity for a programmatic approach to blue carbon accreditation to support restoration of these ecologically...
Authors
Tim J.B. Carruthers, S. Beaux Jones, Megan K. Terrell, Jonathan F. Scheibly, Brendan J. Player, Valerie A. Black, Justin R. Ehrenwerth, Patrick D. Biber, Rod M. Connolly, Steve Crooks, Jason P. Curole, Kelly M. Darnell, Alyssa M. Dausman, Allison L. DeJong, Shawn M. Doyle, Christopher R. Esposito, Daniel A. Friess, James W. Fourqurean, Ioannis Y. Georgiou, Gabriel D. Grimsditch, Songjie He, Eva R. Hillmann, Guerry O. Holm, Jennifer Howard, Hoonshin Jung, Stacy D. Jupiter, Erin P. Kiskaddon, Ken Krauss, Paul S. Lavery, Bingqing Liu, Catherine E. Lovelock, Sarah K. Mack, Peter I. Macreadie, Karen J. McGlathery, J. Patrick Megonigal, Brian J. Roberts, Scott Settelmyer, Lorie W. Staver, Hilary J. Stevens, Ariana Eileen Sutton-Grier, Jorge A. Villa, John R. White, Michelle Waycott
Mangrove freeze resistance and resilience across a tropical-temperate transitional zone Mangrove freeze resistance and resilience across a tropical-temperate transitional zone
Freeze events govern the distribution and structure of mangrove ecosystems, especially in tropical-temperate transitional zones. Understanding mangrove responses to freezing is crucial for predicting their poleward expansion under climate change. However, there is a need for field-based measurements of mangrove freeze resistance and resilience.After an extreme winter storm in December...
Authors
Yiyang Kang, David A. Kaplan, Michael Osland
Handling effects on dispersal of PIT-tagged Flannelmouth Sucker Handling effects on dispersal of PIT-tagged Flannelmouth Sucker
Objective Handling and tagging migrating fish might alter their behavior, limiting inference from mark–recapture studies. Posthandling flight of tributary spawning Flannelmouth Sucker Catostomus latipinnis was previously identified in Coal Creek in the upper Colorado River basin. Our objective was to determine if similar issues were present at McElmo Creek in the San Juan River basin...
Authors
Sophia Marie Bonjour, Keith B. Gido, Mark C. McKinstry
Benthic community metrics track hydrologically stressed mangrove systems Benthic community metrics track hydrologically stressed mangrove systems
Mangrove restoration efforts have increased in order to help combat their decline globally. While restoration efforts often focus on planting seedlings, underlying chronic issues, including disrupted hydrological regimes, can hinder restoration success. While improving hydrology may be more cost-effective and have higher success rates than planting seedlings alone, hydrological...
Authors
Amanda Demopoulos, Jill Bourque, Jennifer McClain Counts, Nicole Cormier, Ken Krauss