Data

This data release consists of mosquito and spatial coordinate data collected along the Halepaʻakai Stream drainage in the Alakaʻi Wilderness Preserve on the island of Kauaʻi from late 2018 to early 2019. These data reflect the first extensive, systematic surveys of adult and larval southern house mosquitoes, Culex quinquefasciatus, in breeding habitat for the critically endangered...

This exploratory study examined vegetation changes in agricultural fields using imagery analysis in the surface areas overlying the Flaxville aquifer and other aquifers in Montana from 1990 to 2020. Agricultural fields were manually digitized and can be found in flaxville_ag_fields.shp. This analysis used surface reflectance data from Landsat satellites to calculate the 95th percentile...

This data release contains mercury concentration measurements in fish and benthic macroinvertebrates collected from southwestern Idaho and northern Nevada between 2007 and 2024. The dataset primarily includes total mercury (Hg) concentrations in muscle tissue of rainbow trout (Oncorhynchus mykiss)—sampled from three reservoirs on the Duck Valley Reservation (Mountain View Reservoir, Lake...

This data release contains a radar-based remote sensing product used to detect regions of surface change in southern Yukon Territory, Canada and southeast Alaska, United States between November 28, 2025 and December 9, 2025, based on the availability of Sentinel-1 satellite data. Much of this surface change is interpreted to have been triggered by the M7.0 Hubbard Glacier Earthquake that...

In September 2025, the U.S. Geological Survey, in cooperation with Idaho Power Company, conducted a pilot geophysical survey along the Snake River between the Boise River confluence and Swan Falls Dam in southwestern Idaho. The purpose of the survey was to evaluate the utility of ground-penetrating radar (GPR) for mapping the spatial distribution and thickness of gravel deposits within...

This Data Release serves as a companion to the USGS Scientific Investigations Report titled "Streamflow Characterization and Effects of Highway Construction on Water-quality and Channel Morphology of the French Broad River near Highway Construction in Buncombe and Henderson Counties, North Carolina, 2019-2022" (Stillwell and others, 2026). Two tables of data are included in this Data...

This data release includes Lake Ontario gillnet catch and biological data from individual fish from the Lake Ontario adult lake trout survey, from 1983 to 2025. Data from gillnets fished in Canadian waters are included from 1985 to 1995, 2008, and 2024. Details about the vessel and gear descriptions, sampling protocols, and fish processing protocols are provided in the associated...

This dataset consists of a single table of data collected from video of polar bears feeding at remains of subsistence harvested bowhead whales on Barter Island. The table includes focal observations of individual bears to record the type of whale tissue consumed (blubber, muscle, etc.) and the number of bites taken by bears from food items over periods of 30 seconds to 12 minutes.

This dataset consists of a single table of feeding trial data collected from 18 polar bears at zoos in the United States and Europe. Bears were fed meat on or off bone, fat, and ground meat. The duration of feeding, amount of food consumed, and number of bites taken were recorded.

GPS collar location data were collected as part of a study on migratory, barren-ground caribou (Rangifer tarandus) in the Central Arctic herd of Alaska. Data were collected in collaboration with Alaska Department of Fish and Game (ADFG). Because ADFG has a statute (16.05.815) restricting the public release of specific animal locations for 25 years, we are only providing metadata about...

These data contain two tables of summarized activity sensor and location data of 29 polar bears that fed at bowhead whale remains left by subsistence hunters. Remains occurred on Barter and Cross Islands on the northern coast of Alaska. Activity sensor data were collected from 6 bears using tri-axial accelerometers. The data are presented in two tables providing a summary of all...

This dataset contains velocity and flow log data collected in 2024 for water production wells (PW) located on Marine Corps Base Camp Pendleton, PW-2602 and PW-2604. Data were collected using the tracer-pulse method described in Izbicki and others (1999), in which a pulse of a rhodamine dye tracer is injected to a known depth in an operating well and the travel time of the tracer to a...