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Lengths, hatch dates, and piscivory for age-0 largemouth bass in Wisconsin lakes Lengths, hatch dates, and piscivory for age-0 largemouth bass in Wisconsin lakes
Data include lengths, observations on piscivory, and hatch dates for age-0 largemouth bass in Wisconsin lakes with predicted total length (TL) if the fish would have hatched 7 days earlier or 7 days later.
Experimental testing for radon in laboratory and field using a coupled diffusive membrane and alpha track detector, 2024 Experimental testing for radon in laboratory and field using a coupled diffusive membrane and alpha track detector, 2024
Information on radon occurrence in groundwater systems is important to assess risks from radon exposure. For this study we developed a novel passive method to measure for dissolved radon in groundwater using a coupled diffusive membrane encasing an alpha track (AT) detector. The membrane is gas permeable but water impermeable, which allows for the deployment of AT detectors in aqueous...
Unoccupied Aerial System-mounted image velocimetry and Doppler velocity radar data for computation of river velocity and discharge collected at seven locations in Colorado in 2023 (ver. 2.0, February 2026) Unoccupied Aerial System-mounted image velocimetry and Doppler velocity radar data for computation of river velocity and discharge collected at seven locations in Colorado in 2023 (ver. 2.0, February 2026)
A series of field measurements of surface water velocity derived from video and Doppler velocity radar collected by small unoccupied aircraft systems (sUAS) and portable sensors were collected at seven locations in Colorado, USA, during the summer of 2023. The measurements were utilized to compute surface velocity and discharge using the Probability Concept, Large-Scale Particle Image...
Data in support of groundwater- and surface-water-interactions report—Groundwater and Surface-Water Interactions in the Lower Duwamish Waterway, Seattle, Washington Data in support of groundwater- and surface-water-interactions report—Groundwater and Surface-Water Interactions in the Lower Duwamish Waterway, Seattle, Washington
The U.S. Geological Survey (USGS), in cooperation with the Washington State Department of Ecology (Ecology), conducted a study to describe the current understanding of the regional groundwater system of the lower Duwamish River valley and groundwater and surface-water interactions in the lower Duwamish Waterway. A nearshore site along the western shoreline of the Duwamish River, about 1...
Data Files for the Development of Regional Regression Equations for Flow-Duration Statistics and N-day Low-Flow Frequencies for Ungaged Stream Locations in Puerto Rico Using Data Through Water Year 2018 Data Files for the Development of Regional Regression Equations for Flow-Duration Statistics and N-day Low-Flow Frequencies for Ungaged Stream Locations in Puerto Rico Using Data Through Water Year 2018
Flow-duration statistics at the 99th, 98th, 95th, 90th, 80th, 70th, 60th, and 50th percent exceedance probabilities and annual n-day low-flow statistics for the 1-, 7-, 14-, and 30-day mean low flows with 2-year (0.5 nonexceedance probability), 5-year (0.2 nonexceedance probability), and 10-year (0.1 nonexceedance probability) recurrence intervals were computed for 28 selected streamflow...
Network Attributes for the High Resolution National Hydrography Dataset (NHD) based initial 3D Hydrography Program Network Network Attributes for the High Resolution National Hydrography Dataset (NHD) based initial 3D Hydrography Program Network
This dataset contains the initial 3D Hydrography Program (3DHP) flow network topology, which is based on the final High Resolution National Hydrography Dataset (NHD), and a set of mainstem river identifiers based on the Medium resolution NHDPlus Version 2 (NHDPlusV2). The 3DHP flow network topology and mainstem identifiers contained in this data release add two key pieces of information...
Historical and projected future land change and ecosystem carbon stocks for California Historical and projected future land change and ecosystem carbon stocks for California
This dataset consists of annual raster maps of ecosystem carbon stocks, land use and land cover classes, and transition probabilities for the State of California during historical (1985-2020) and projected future (2021-2100) time periods. Data are simulation model output from the The Land Use and Carbon Simulator (LUCAS; Sleeter et al. 2022) run under different climate and land...
Results of Virus Isolation and Serology testing on Influenza A Virus Samples from Lesser Scaup (Aythya affinis) and Greater Scaup (Aythya Marila) Results of Virus Isolation and Serology testing on Influenza A Virus Samples from Lesser Scaup (Aythya affinis) and Greater Scaup (Aythya Marila)
These data describe the results of virus isolation from oropharyngeal/cloacal swabs and testing of sera by a commercial blocking enzyme-linked immunosorbent assay (bELISA) and hemagglutinin (HA) specific testing by microneutralization (MN) and hemagglutination inhibition (HI) for Lesser Scaup in both the Atlantic and Pacific Flyways and Greater Scaup in the Pacific Flyway. These data...
Indiana Amphibian Pathogen Surveillance data release Indiana Amphibian Pathogen Surveillance data release
Data in this dataset were collected as a part of a surveillance project for reintroduction of a state endangered species in Indiana. This data was collected in the field by state biologists and sent to the USGS National Wildlife Health Center (NWHC) for testing of four amphibian pathogens, Batrachochytrium dendrobatidis (Bd), Batrachochytrium salamandrivorans (Bs), Ranavirus, and...
An Inventory of Past Mine Production Footprints in Alaska, Including Land Disturbance and Potential Above-Ground Resources, Derived from 2018-2023 World Imagery An Inventory of Past Mine Production Footprints in Alaska, Including Land Disturbance and Potential Above-Ground Resources, Derived from 2018-2023 World Imagery
This data release contains two vector polygon shapefile datasets that delineate footprints of land surface disturbance and waste that may represent potential above-ground resources resulting from past mining in Alaska. These footprints were mapped on 2023 World Imagery at the location of currently inactive Alaska Resource Data File sites of past mining production.
Horseshoe Crab Research Publications Dataset (1955-2024): Ecology, Conservation, and Biological Studies Horseshoe Crab Research Publications Dataset (1955-2024): Ecology, Conservation, and Biological Studies
The dataset focusing on research publications related to the American horseshoe crab (Limulus polyphemus) and ecological studies over multiple decades. The dataset contains detailed information about individual research publications, including: Year and Decade of publication. Publication Title and a Link to access the document. Classification of publications based on their relation to...
Point-Source Nutrient Loads to Streams of the Conterminous United States, 1999-2020 Point-Source Nutrient Loads to Streams of the Conterminous United States, 1999-2020
This dataset was developed to estimate point-source total nitrogen and phosphorous loads to streams in the conterminous United States (U.S.) from December 1999 to November 2020. This dataset uses discharge and concentration information from point sources to streams in the conterminous United States from the U.S. Environmental Protection Agency (EPA) Integrated Compliance Information...