Data Releases

This data release contains mark-recapture and associated environmental data for blue sucker (Cycleptus elongatus) collected in the lower Colorado River, Texas, from 2016 through 2026. The release includes capture records from 16 field events, combined into 13 primary sampling occasions for analysis, across up to 40 electrofishing sites, with information on sampling dates, site...

This model archive summary describes the development of an acoustic derived suspended sediment time series computation model. The model archive summary describes the methods and techniques used to develop the model for the Columbia River at Vancouver, WA – USGS site ID 14144700. The time series suspended sediment data will help determine the suspended sediment concentration at the site...

Embryonic zebrafish (Danio rerio) were exposed to 0, 1.93, or 15.46 micrograms per liter of total polycyclic aromatic hydrocarbons (tPAHs) present from a low energy water accommodated fraction (LEWAF) of crude oil from the Brazilian oil spill in 2019. Embryos were exposed from 4 hours post fertilization (hpf) through hatching and sampled at 24, 48, 72,96, 120, 144, or 168 hpf. Zebrafish...

Gridded surfaces of bathymetry (50-meter resolution) and acoustic backscatter (25-meter resolution) were produced from 12 kHz Kongsberg Maritime EM124 multibeam echo sounding data of the Samoa Basin seafloor within the United States Exclusive Economic Zone surrounding the Territory of American Samoa. Together, these two datasets of seafloor elevation and seafloor character (substrate...

Coastal vegetated ecosystems play a vital role in reducing hurricane impacts on nearby communities. Different types of vegetation and landcover create varying levels of drag that help lessen hazards such as flooding and erosion. However, coastal landcover is constantly changing due to storms, tides, waves, and human activities. Existing satellite landcover products, such as the annual...

These physical and geochemical (elemental) data are from dust collected in the Kaibab National Forest and Grand Canyon National Park near the Pinyon Plain Mine. Samples were collected by the U.S. Geological Survey Utah Water Science Center (West Valley City, Utah) using low‑cost passive samplers. The samples were processed at the Utah Water Science Center, and elemental analyses were...

All the data presented here were compiled from published U.S. Geological Survey National oil and gas assessment results, both hardcopy and digital, from 1995-present. Each record in the table has been published previously as part of a conventional or continuous assessment under the National and Global Assessment (NAGA) Project. This data release includes more than 700 records from 70...

This study was done because elevated concentrations of metals including aluminum, arsenic, and lead were identified by Navajo Nation EPA staff in the San Juan River from below the Navajo Dam, through the Navajo Nation to Mexican Hat, Utah in the Four Corners Region of the United States (Colorado, Arizona, New Mexico, Utah). An interdisciplinary team applied approaches and principles of...

Continuous Suspended-Sediment Concentration (mg/L) 15-minute time-series data computed from turbidity data during water years 2014-2018. The model information is available in the Model Archive Summary document.

The southwest population of northern sea otters (Enhydra lutris kenyoni) in Alaska was listed under the Endangered Species Act in 2005. A previous estimate of equilibrium density was derived from historical aerial survey data to inform recovery criteria, but research has since demonstrated this estimate may be biased. We used historical data to generate a new estimate of equilibrium...

The U. S. Geological Survey (USGS) Upper Midwest Environmental Sciences Center assessed water quality and phytoplankton community dynamics across connectivity gradients of the upper Mississippi River (UMR) from Pools 10 to 24. Excessive nutrient inputs and harmful algal blooms (HABs) within the Mississippi River have the potential to impact the success of restoration projects...

The U. S. Geological Survey (USGS) Upper Midwest Environmental Sciences Center collected up to 6-months of continuous data from water quality, pressure, and current sensors to measure wave-induced resuspension of sediments across six shallow ( 2 m) sites in Pool 13 of the Upper Mississippi River between April 4, 2025 and October 2, 2025. This data release includes hydrodynamic and water...