Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 238
Date published: April 16, 2016
Status: Active

GIS and Custom Application Support for the Gulf Coast Ecosystem Restoration Council

The scientists at the Wetland and Aquatic Science Center (WARC) have provided coastal restoration project managers and decision makers with GIS planning, database and custom application capacity since 1992. The scope and complexity of this support has increased over the years and has resulted in the development of a comprehensive geospatial and advanced application teams that provide decision...

Date published: April 16, 2016

Spatial Analysis Support for Coastal Wetlands Planning, Protection and Restoration Act (Breaux Bill) Planning Activities

WARC first implemented geographic information systems (GIS) in 1980 to help monitor the nature and extent of wetland habitat changes. The center continues to use GIS, remote sensing, and other computer based technologies to address a wide range of natural resource related issues. 

Date published: April 16, 2016
Status: Active

Visual Guide to Louisiana Plants: A Web Based Searchable Plant Database and Photo Gallery of the Plants of Louisiana

Quality photographs of plant species are rare on the internet, often difficult to find, and are generally copyrighted, preventing them from being used by government agencies and non-government organizations, academics and the general public.

Date published: April 15, 2016

Morphology Modeling in Support of the Louisiana Coastal Master Plan

In support of Louisiana’s 2012 Coastal Master Plan, USGS WARC scientists have developed a spatially explicit wetland morphology model and coupled it with other predictive models to help predict the effects of protection and restoration projects. 

Date published: April 14, 2016
Status: Active

Geographic Information and Technical Support

USGS WARC first implemented geographic information systems (GIS) in 1980 to assist in monitoring the nature and extent of wetland habitat changes. Today, geographers and support staff create, maintain, and use geospatial data to analyze restoration efforts in Louisiana. 

Date published: April 14, 2016

Louisiana Coastal Area (LCA) Ecosystem Restoration Program – Adaptive Management and Monitoring Planning and Implementation Support

Adaptive management (AM) is an iterative science-based process that accepts uncertainties in ecological systems and uses best available science and technology such as research, modeling, experimentation, monitoring and evaluation to address uncertainties. 

Contacts: Michelle Meyers
Date published: April 13, 2016

Understanding Coastal Change

Scientists perform a range of studies that document, assess, and model coastal change, risk, and vulnerability. Studies include historical shoreline change, the geologic structure and history of coastal regions, sediment supply and transport, sea-level rise, and how extreme storm events affect rates and impacts of coastal change.

Date published: April 13, 2016

Geologic Hazards and Catastrophic Events

We study the distribution and hazard potential of coastal and submarine events such as earthquakes and submarine landslides and associated tsunami potential, hurricane induced coastal inundation, extreme storms, sea-level rise and oil and gas spills. We also model development to help evaluate and forecast coastal hazard probability and occurrence.

Date published: April 13, 2016

Ocean Resources for America's Needs

Our scientists conduct research studies focused on geologic mapping, sampling and understanding of mineral and energy resources and studies of the geologic setting and processes to inform renewable energy development offshore.

Date published: April 13, 2016

Coastal and Marine Ecosystem Science

We bring together multidisciplinary expertise focused on developing tools and models to improve understanding of how healthy ecosystems function as well as how they respond to environmental changes and human impacts including ecosystem restoration. Research studies address coral reef, coastal wetland, benthic habitat and groundwater resources.

Date published: April 12, 2016
Status: Active

USGS Library

The USGS Library, managed by CSAS&L, supports all fundamental scientific research conducted within USGS. It serves both internal and external customers with comprehensive access to literature, data, and information necessary understand USGS mission areas and make critical decisions about how to proceed with research initiatives and investigations in the earth and natural sciences.

Filter Total Items: 4,537
Publication Thumbnail
Year Published: 2020

Water resources of Evangeline Parish, Louisiana

Information concerning the availability, use, and quality of water in Evangeline Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 282.66 million gallons...

Murphy, Chid J.; White, Vincent E.
Murphy, C.J., and White, V.E., 2020, Water resources of Evangeline Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3020, 6 p., https://doi.org/10.3133/fs20203020.

Publication Thumbnail
Year Published: 2020

Water resources of Avoyelles Parish, Louisiana

Information concerning the availability, use, and quality of water in Avoyelles Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 70 million gallons per...

White, Vincent E.
White, V.E., 2020, Water resources of Avoyelles Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3011, 6 p., https://doi.org/10.3133/fs20203011.

Publication Thumbnail
Year Published: 2020

A trapping survey targeting head-started alligator snapping turtles in southwest Louisiana

The alligator snapping turtle Macrochelys temminckii is the largest freshwater turtle in North America and is sought after as a food source, primarily in Louisiana. Decades of intensive commercial harvest of alligator snapping turtles has been implicated in population declines. The Louisiana Department of Wildlife and Fisheries initiated a head-...

Glorioso, Brad; Muse, Lindy J.; Hillard, Cory J; Maldonado, Brittany R.; Streeter, Jared; Battaglia, Charles D; Waddle, J. Hardin

Publication Thumbnail
Year Published: 2020

Low oxygen: A (tough) way of life for Okavango fishes

Botswana’s Okavango Delta is a World Heritage Site and biodiverse wilderness. In 2016–2018, following arrival of the annual flood of rainwater from Angola’s highlands, and using continuous oxygen logging, we documented profound aquatic hypoxia that persisted for 3.5 to 5 months in the river channel. Within these periods, dissolved oxygen rarely...

Edwards, Thea Margaret; Mosie, Ineelo J.; Moore, Brandon C.; Lobjoit, Guy; Schiavone, Kelsie; Bachman, Robert E.; Murray-Hudson, Mike

Publication Thumbnail
Year Published: 2020

Legacy effects of hydrologic alteration in playa wetland responses to droughts

Wetland conservation increasingly must account for climate change and legacies of previous land-use practices. Playa wetlands provide critical wildlife habitat, but may be impacted by intensifying droughts and previous hydrologic modifications. To inform playa restoration planning, we asked: (1) what are the trends in playa inundation? (2) what...

Russell, Micah T.; Cartwright, Jennifer M.; Collins, Gail H.; Long, Ryan A.; Eitel, Jan H.

Publication Thumbnail
Year Published: 2020

A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest

This guidebook provides user-friendly overviews of a variety of spatial datasets relevant to conservation and management of natural resources in the face of climate change in the Pacific Northwest, United States. Each guidebook chapter was created using a standardized template to summarize a spatial dataset or a group of closely related datasets....

Cartwright, Jennifer M.; Cartwright, Jennifer M.; Belote, Travis; Blasch, Kyle W.; Campbell, Steve; Chambers, Jeanne C.; Davis, Raymond J.; Dobrowski, Solomon; Dunham, Jason B.; Gergel, Diana; Isaak, Daniel; Jaeger, Kristin; Krosby, Meade; Langdon, Jesse; Lawler, Joshua J.; Littlefield, Caitlin E; Luce, Charles H; Maestas, Jeremy D; Martinez, Anthony; Meddens, Arjan J.H.; Michalak, Julia; Parks, Sean A.; Peterman, Wendy; Popper, Ken; Ringo, Chris; Sando, Roy; Schindel, Michael; Stralberg, Diana; Theobald, David M.; Walker, Nathan; Wilsey, Chad; Yang, Zhiqiang; Yost, Andrew

Publication Thumbnail
Year Published: 2020

Thiamine concentrations in lake trout and Atlantic salmon eggs during 14 years following the invasion of alewife in Lake Champlain

Thiamine (vitamin B1) deficiency in Great Lakes salmonines has been linked to consumption of alewife Alosa pseudoharengus. Thiamine deficiency has been recognized as a possible impediment to lake trout Salvelinus namaycush recruitment in the Great Lakes and Atlantic salmon Salmo salar recruitment in the Finger Lakes and...

Ladago, Bret J.; Futia, Matthew H.; Ardren, William R.; Honeyfield, Dale C.; Kelsey, Kevin P.; Kozel, Carrie L.; Riley, Stephen; Rinchard, Jacques; Tillitt, Donald E.; Zajicek, James L.; Marsden, J. Ellen

Publication Thumbnail
Year Published: 2020

Influence of soil microbiota on Taxodium distichum seedling performance during extreme flooding events

Plant associations with soil microbiota can modulate tree seedling growth and survival via mutualistic or antagonistic interactions. It is uncertain, however, whether soil microbiota influence seedling growth of coastal trees when exposed to extreme flooding regimes. We evaluated the role of soil microbes in promoting baldcypress (Taxodium...

Torres-Martínez, Lorena; Sánchez-Julia, Mareli; Kimbrough, Elizabeth; Hendrix, Trey; Hendrix, Miranda; Day, Richard H.; Krauss, Ken W.; Van Bael, Sunshine A

Publication Thumbnail
Year Published: 2020

The field trip that changed the course of my career

After gobbling down a breakfast of sliced papaya, scrambled eggs, refried beans, and soft flour tacos, we gathered our gear and loaded it into the red zodiac that the station manager had assigned to us. My colleagues and I were headed to a pair of islands off the coast of Belize called Twin Cays, occupied by a unique group of tropical plants and...

McKee, Karen L.

Publication Thumbnail
Year Published: 2020

The utility of zooarchaeological data to guide listing efforts for an imperiled mussel species (Bivalvia: Unionidae: Pleurobema riddellii)

The status of species in freshwater systems shift over time due to natural and anthropogenic causes. Determining the magnitude and cause of these shifts requires a long‐term perspective. This process is complicated when there are also questions about the taxonomic validity of a species. Addressing these issues is important because both can...

Randklev, Charles R.; Wolverton, Steve; Johnson, Nathan; Smith, Chase H.; DuBose, Traci; Robertson, Clint; Conley, Julian

Publication Thumbnail
Year Published: 2020

A new species of freshwater mussel in the genus Popenaias Frierson, 1927, from the Gulf coastal rivers of central Mexico (Bivalvia: Unionida: Unionidae) with comments on the genus

The Gulf coastal drainages of central Mexico are a faunal transition zone between North and South America and harbor a unique assemblage of freshwater mussels (Bivalvia: Unionida). However, little information is available regarding the taxonomy, distribution, and evolutionary history of the Mexican mussel fauna due to limited sampling over the...

Inoue, Kentaro; Cummings, Kevin S.; Tiemann, Jeremy S.; Miller, Thomas D.; Johnson, Nathan; Smith, Chase H.; Randklev, Charles R.

Filter Total Items: 220
Image: Big Sioux River at Akron, Iowa, 2010
March 16, 2010

Big Sioux River at Akron, Iowa, 2010

U.S. Geological Survey hydrologic technician measuring streamflow at the Big Sioux River at Arkon, Iowa, on March 17, 2010, during flooding conditions.

Image: Big Sioux River at Akron, Iowa, 2010
March 16, 2010

Big Sioux River at Akron, Iowa, 2010

Flooding conditions at USGS streamgage 06485500, Big Sioux River at Arkon, Iowa, on March 17, 2010. Daily mean streamflow on this date was more than 30,000 cubic feet per second.

Highest stream mycotoxin concentrations were observed during spring snowmelt conditions in agricultural settings
January 2, 2010

Stream Mycotoxin Concentrations were Highest During Spring Snowmelt

Highest stream mycotoxin concentrations were observed during spring snowmelt conditions in agricultural settings such as pictured in this Iowa stream.

Baseflow measurements of field parameters (dissolved oxygen, water temperature, specific conductance, and pH)
September 14, 2009

Baseflow measurements of field parameters

The team of USGS scientists collected stream water samples before and after rainfall events for this study. In this photo a USGS scientist is taking measurements of field parameters (dissolved oxygen, water temperature, specific conductance, and pH) from New York Branch, Iowa, at low flow (baseflow) conditions.

Filter Total Items: 253
USGS
June 7, 2010

A team of scientists with the U.S. Geological Survey will be conducting a series of seismic profiling tests near the New Madrid Fault during the first part of June. Using the “Thumper” truck, researchers with the USGS and University of Texas hope to gather new insight into another region south of the New Madrid Fault zone that likely experienced large earthquakes 5000 to 7000 years ago.

USGS science for a changing world logo
November 9, 2009

Concentrations of several major pesticides mostly declined or stayed the same in "Corn Belt" rivers and streams from 1996 to 2006, according to a new U.S. Geological Survey study.

USGS science for a changing world logo
September 24, 2009

USGS will Grant Universities $5 Million to Beef Up Public Safety Grants totaling $5 million under the American Recovery and Reinvestment Act are being awarded to 13 universities nationwide to upgrade critical earthquake monitoring networks and increase public safety.

USGS science for a changing world logo
September 16, 2009

Levels of chloride, a component of salt, are elevated in many urban streams and groundwater across the northern U.S., according to a new government study. Chloride levels above the recommended federal criteria set to protect aquatic life were found in more than 40 percent of urban streams tested. The study was released today by the U.S. Geological Survey (USGS).

USGS science for a changing world logo
June 16, 2009

Spring nutrient delivery to the northern Gulf of Mexico is among the highest measured by the U.S. Geological Survey (USGS) in thirty years. Too many nutrients, which are essential for plant growth, are not necessarily a good thing.

USGS science for a changing world logo
May 12, 2009

This summer, boaters and anglers might notice a few foreign objects in some of the backwaters and near-shore areas of Navigation Pool 8 of the Upper Mississippi River. Scientists will deploy small orange buoys supporting plastic containers of river water at several sites at various times this summer.

USGS science for a changing world logo
April 8, 2009

USGS Shares Findings and Lessons from Ike at the 2009 National Hurricane Conference in Austin
The 2008 hurricane season made its mark on the northern Gulf of Mexico coastline by leaving it more vulnerable to future storms.

USGS science for a changing world logo
April 1, 2009

Each of the 818 large watersheds in the Mississippi/Atchafalaya River Basin (MARB) has been ranked on the basis of SPARROW model estimates of nitrogen and phosphorus yields delivered to the Gulf of Mexico by the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency (EPA).

USGS
December 18, 2008

U.S. Geological Survey Deputy Director Robert Doyle has been selected as a Distinguished recipient of the Presidential Rank Award, a prestigious award that commends outstanding leadership and long-term accomplishments.

USGS
September 12, 2008

New maps that help forecast possible impacts and damages to coastal communities from Hurricane Ike can be accessed online.http://coastal.er.usgs.gov/hurricanes/ike/ .