Wetland and Aquatic Research Center
Bigger May Not Be Better When It Comes to Mississippi River Diversions
New WARC-led research shows large-scale river diversions may change water quality in estuaries, affecting economically important shellfish and fishesLearn more
Rainfall & Temperature Changes Expected to Transform Coastal Wetlands
New study finds changes in rainfall and temperature are predicted to transform wetlands in the Gulf of Mexico and around the world within the century.Read more
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.
The WARC Strategic Science Plan demonstrates the alignment of the WARC goals with the USGS mission areas, associated programs, and other DOI initiatives.Learn More
Have you seen me? Report sightings of non-native and invasive aquatic plant and animal species to the Nonindigenous Aquatic Species (NAS) information resource.Report Sightings
Coastal Louisiana wetlands make up the seventh largest delta on Earth and support the largest commercial fishery in the lower 48 states. However, Louisiana currently undergoes ~90% of the total coastal wetland loss in the continental U.S.Learn more
Florida’s iconic manatee population is highly likely to endure for the next 100 years, so long as wildlife managers continue to protect the marine mammals and their habitat, a new study by the US Geological Survey and the Florida Fish and Wildlife Research Institute has found.
We appreciate your interest in USGS' Sirenia Project. To help inform members of the media and public, we have provided relevant publications, reports, and websites.
The Fish Slam event discovered two nonnative fish species never seen before in Big Cypress National Preserve.
Evaluation of harvest and information needs for North American sea ducks
Wildlife managers routinely seek to establish sustainable limits of sport harvest or other regulated forms of take while confronted with considerable uncertainty. A growing body of ecological research focuses on methods to describe and account for uncertainty in management decision-making and to prioritize research and monitoring investments to reduce the most influential uncertainties. We used...
Octocoral diseases in a changing ocean
Octocorals (Cnidaria, Octocorallia) constitute a geographically widely distributed and common group of marine invertebrates commonly referred to as “soft-corals,” “sea fans,” “horny corals,” “sea feathers,” and “sea plumes.” They are found from shallow coastal habitats to mesophotic and abyssal depths.
Integrated species distribution models: combining presence-background data and site-occupancy data with imperfect detection
Two main sources of data for species distribution models (SDMs) are site-occupancy (SO) data from planned surveys, and presence-background (PB) data from opportunistic surveys and other sources. SO surveys give high quality data about presences and absences of the species in a particular area. However, due to their high cost, they often cover a smaller area relative to PB data, and are usually...