Wetland and Aquatic Research Center


WARC conducts relevant and objective research, develops new approaches and technologies, and disseminates scientific information needed to understand, manage, conserve, and restore wetlands and other aquatic and coastal ecosystems and their associated plant and animal communities throughout the nation and the world. Learn more about WARC science.

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Science for Detection, Containment, and Control of Invasive Species

Science for Detection, Containment, and Control of Invasive Species

USGS scientists focus on the development of innovative prevention, prediction, early detection, containment, and control tools. 

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Date published: June 22, 2020

Seafloor Methane Seeps at the Edge of Hydrate Stability

In June 2019, USGS scientists led a 22-day deep-sea research expedition aboard the R/V Falkor to examine methane seep dynamics and processes along the Cascadia Margin offshore of Washington and Oregon.

Date published: June 8, 2020

Life Under the Sea: WARC Ocean Science

Nearly two-thirds of our planet is covered by water with more than 120 million Americans living near an ocean or Great Lake. Celebrate Ocean Month and learn more about USGS ocean science research!

Date published: October 30, 2019


Keep up to speed with the latest USGS deep-sea research cruise with this seafloor syntax.


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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

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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

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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.