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Reports

Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 84719

Identifying physical characteristics and functional traits of forbs preferred or highly visited by bees in the Prairie Pothole Region Identifying physical characteristics and functional traits of forbs preferred or highly visited by bees in the Prairie Pothole Region

Establishing and enhancing pollinator habitat to support declining bee populations is a national goal within the United States. Pollinator habitat is often created through incentive-based conservation programs, and the inclusion of cost-effective forbs within the habitat design is a critical component of such programs. U.S. Geological Survey research from 2015 to 2019 identified forb...
Authors
Stacy C. Simanonok, Clint Otto

A pilot biodiversity inventory and monitoring protocol in support of coastal adaptation projects in tidal and nearshore subtidal habitats of Boston Harbor Islands A pilot biodiversity inventory and monitoring protocol in support of coastal adaptation projects in tidal and nearshore subtidal habitats of Boston Harbor Islands

The Boston Harbor Islands National Recreation Area (BOHA) is at high risk to the impacts of sealevel rise (SLR) and erosion from coastal storms. In June 2021, the National Trust for Historic Preservation listed the islands as one of America’s 11 Most Endangered Historic Places due to climate change. BOHA partners have been working to find climate adaptive solutions to protect and sustain...
Authors
Michelle Staudinger, Marc Albert

Hydrogeologic framework of the Red River alluvial aquifer and Carrizo-Wilcox aquifer in northwestern Louisiana Hydrogeologic framework of the Red River alluvial aquifer and Carrizo-Wilcox aquifer in northwestern Louisiana

Groundwater in northwestern Louisiana is a valuable resource needed for expanding public-supply needs as well as possible energy development needs arising from Haynesville Formation natural-gas production. The Red River alluvial and the Carrizo-Wilcox aquifers are two of the most important and heavily pumped aquifers in northwestern Louisiana; however, little documentation of the...
Authors
Phillip D. Hays, Anna M. Nottmeier, Robert B. Fendick, William J. Daugherty, Kayla Carter

Maximizing the water quality benefits of wetlands in croplands Maximizing the water quality benefits of wetlands in croplands

Key Takeaways Nutrient loads from croplands continue to negatively affect surface water quality, despite considerable investments in and adoption of agricultural conservation practices aimed at reducing nutrient losses. Numerous studies indicate that effective restoration and management of wetlands in and adjacent to cultivated croplands could reduce surface and subsurface nutrient loads...
Authors
Owen P. McKenna, Caryn D Ross, Joseph Prenger

Status and trends of the Lake Huron prey fish community, 1976-2021 Status and trends of the Lake Huron prey fish community, 1976-2021

The U.S. Geological Survey Great Lakes Science Center has assessed annual changes in the offshore prey fish community of Lake Huron since 1973. Assessments are based on a bottom trawl survey conducted in October of each year and an acoustics-midwater trawl survey, which began in 2004 and is conducted in September-October. Due to weather delays and continued travel restrictions during...
Authors
Timothy P. O’Brien, Darryl W. Hondorp, Peter C. Esselman, Edward F. Roseman

Geologic map of Okmok Volcano Geologic map of Okmok Volcano

The geologic map and description of map units presented here cover approximately 880 km2 of northeastern Umnak Island, Aleutian Islands, Alaska. This report focuses on Okmok Volcano and its eruptive products and updates the mid-20th-century geologic map of Byers (1959). Mapped deposits reflect the state of the volcano just prior to the 2008 eruption. Published information about other...
Authors
Jessica Larsen, Christina A. Neal, Janet Schaefer, Christopher J. Nye

2021–2022 Statewide Abundance Estimates for the Florida Manatee 2021–2022 Statewide Abundance Estimates for the Florida Manatee

Knowing the population size of Florida manatees (Trichechus manatus latirostris) is critical for conservation and management of this threatened species. Martin et al. (2015) and Hostetler et al. (2018) applied statistical models that incorporated multiple data sources to estimate the statewide abundance of manatees from aerial surveys f lown in 2011–2012 and 2015–2016. We conducted...
Authors
Timothy A. Gowan, Holly H. Edwards, Andrea M. Krzystan, Julien Martin, J. A. Hostetler

Comprehensive inventory of habitat assessment and evaluation datasets to support Deepwater Horizon mesophotic and deep benthic communities Comprehensive inventory of habitat assessment and evaluation datasets to support Deepwater Horizon mesophotic and deep benthic communities

This report is part of the NOAA Mesophotic and Deep Benthic Communities (MDBC) Series of publications that share the results of work conducted by the Deepwater Horizon MDBC restoration projects.   The 2010 Deepwater Horizon oil spill was an unprecedented event. Approximately 3.2 million barrels of oil were released into the deep ocean over nearly three months. The plume of oil moved...
Authors
Rachel Bassett, Jennifer Herting, Janessy Frometa, Stephanie M. Sharuga, Jacob Howell, Laughlin Siceloff, Jill R. Bourque, Megan Cromwell, Kirstie Francis, Randy Clark, Amanda Demopoulos, Andy David, Kristopher Benson, Stacey L. Harter

A comparison of water-quality and stormwater inflow and outflow during habitat restoration at the McEwen storm drainage pond, South Valley, Albuquerque, New Mexico, 2020–22 A comparison of water-quality and stormwater inflow and outflow during habitat restoration at the McEwen storm drainage pond, South Valley, Albuquerque, New Mexico, 2020–22

In 2020, the U.S. Geological Survey began targeted monitoring, in partnership with Bernalillo County, at three locations within the McEwen storm drainage pond to evaluate and compare the water quality of stormwater as it enters and exits the study area, which is channelized and routes urban stormwater runoff through a wetland area. Stage in McEwen pond and precipitation at a nearby...
Authors
R. E. Travis, C.A. Van Zante, N.Y. Montero, K. E. Miltenberger

Nonsalmonid gas bubble trauma investigations Nonsalmonid gas bubble trauma investigations

From 2020 to 2023, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work and report was to measure the incidence...
Authors
Kenneth Tiffan, Brad D. Liedtke, Scott Louis Benson

Occurrence of mixed organic and inorganic chemicals in groundwater and tapwater, town of Campbell, Wisconsin, 2021–22 Occurrence of mixed organic and inorganic chemicals in groundwater and tapwater, town of Campbell, Wisconsin, 2021–22

In response to previous reports of per- and polyfluoroalkyl substances (PFAS) contamination in French Island’s (located in the Mississippi River within the town of Campbell, Wisconsin) primary source of drinking water, 11 locations were sampled by the U.S. Geological Survey (USGS) in October 2021 to assess the potential presence of contaminant mixtures, including PFAS, in tapwater. Three...
Authors
Kristin M. Romanok, Shannon M. Meppelink, Paul M. Bradley, Sara E. Breitmeyer, Lee Donahue, Mark P. Gaikowski, Randy K. Hines, Kelly L. Smalling

Re-prioritization of the U.S. Geological Survey Federal Priority Streamgage Network, 2022 Re-prioritization of the U.S. Geological Survey Federal Priority Streamgage Network, 2022

The Federal Priority Streamgage (FPS) network of the U.S. Geological Survey (USGS), created in 1999 as the National Streamflow Information Program, receives Congressional appropriations to support the operation of a federally-funded “backbone” network of streamflow gages across the United States that are designated to meet the “Federal needs” or priorities of the country. Anticipating...
Authors
Jonathan J.A. Dillow, Brian E. McCallum, Cory E. Angeroth
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