Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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2023 Baseline Intertidal Biodiversity in Mixed Coarse Substrate Habitats Across the Boston Harbor Islands 2023 Baseline Intertidal Biodiversity in Mixed Coarse Substrate Habitats Across the Boston Harbor Islands
This data set contains information on the occurrence and abundance of intertidal marine invertebrates and macro algae collected across five islands with 10 sites in the Boston Harbor in 2023. This data was collected using an intertidal biodiversity monitoring protocol developed specifically for the mixed coarse substrate habitat found on the inner islands of Boston Harbor, including...
Estimates of water-quality concentrations from two watersheds affected by the 2020 Cameron Peak Fire in Larimer County, Colorado Estimates of water-quality concentrations from two watersheds affected by the 2020 Cameron Peak Fire in Larimer County, Colorado
This data repository documents the input files, output files, and RStudio scripts used to quantify changes in water-quality concentrations after the 2020 Cameron Peak Fire in the North Fork Big Thompson River and Buckhorn Creek watersheds using the Weighted Regressions on Time, Discharge, and Season (WRTDS) method. A WRTDS model was developed using 12 years of pre-fire data (2008-August...
Diet, morphometric and demographic data for cisco (Coregonus artedi) collected in the winter and spring of 2022-2023 in Lake Michigan and connected waters Diet, morphometric and demographic data for cisco (Coregonus artedi) collected in the winter and spring of 2022-2023 in Lake Michigan and connected waters
These data describe demographic, diet contents and associated weights, fullness index, morphometrics (body shape), and meristic (total number of gill rakers) measurements of cisco (Coregonus artedi) collected in Lake Michigan along the eastern shoreline, the Pine River/ Lake Charlevoix Channel, and from three drowned river mouth lakes (Portage Lake, Muskegon Lake, Lake Charlevoix) from...
Morphological and genetic data for Phragmites australis along the Colorado River and in tributaries from southern Utah to west-central Arizona Morphological and genetic data for Phragmites australis along the Colorado River and in tributaries from southern Utah to west-central Arizona
These data were compiled to provide land-management relevant information on the native and nonnative subspecies (subsp.) of Phragmites australis (subsp. americanus and subsp. australis, respectively) in Glen Canyon National Recreation Area (NRA), Grand Canyon National Park (NP), Arches National Park, and Bill Williams National Wildlife Refuge. Specifically, the goals of this work were to...
Channel and floodplain cross-section and bed-elevation data for the Green River in Echo, Island, and Rainbow Parks, Dinosaur National Monument, Colorado and Utah Channel and floodplain cross-section and bed-elevation data for the Green River in Echo, Island, and Rainbow Parks, Dinosaur National Monument, Colorado and Utah
These data were compiled to determine the rate and magnitude of channel-planform change, and the topographic change of the channel and floodplain in Echo, Island, and Rainbow Parks within Dinosaur National Monument between the 1990s and 2019. The objective(s) of our study were to analyze geomorphic change within Echo, Island, and Rainbow Parks to determine the magnitude and style of...
An Open Repository of U.S. Cone Penetration Test (CPT) data An Open Repository of U.S. Cone Penetration Test (CPT) data
Cone Penetration Test (CPT) data collected by the U.S. Geological Survey since 1978 are compiled and provided as a uniformly formatted set of comma separated value (.csv) files. This dataset includes 1822 CPT soundings from 14 U.S. States. Provided CPT data are a set of three column comma separated value (.csv) files containing depth (meters), tip resistance (̨MPa), and sleeve resistance...
Emergence and growth of four native Intermountain West perennial grasses under six water availability regimes Emergence and growth of four native Intermountain West perennial grasses under six water availability regimes
These data were compiled to evaluate the effects of seed coat treatments on the emergence and growth of four native Intermountain West perennial grasses exposed to six different water availability regimes. The objective of our study was to evaluate how seed coat treatments influence seed response and seedling performance for different species exposed to different regimes of water...
Airborne magnetic and radiometric survey of the Boulder Batholith region, Montana, Butte extension 2023 Airborne magnetic and radiometric survey of the Boulder Batholith region, Montana, Butte extension 2023
This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over parts of Montana in the vicinity of the Boulder Batholith. The airborne survey was funded by the Earth Mapping Resources Initiative and was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 45...
Annual variation in summer phytoplankton communities influenced by river morphology and seasonal environmental conditions Annual variation in summer phytoplankton communities influenced by river morphology and seasonal environmental conditions
Phytoplankton samples were collected from the La Grange reach of the Illinois River from 2010-2020. Samples were collected from main channel, side channel and backwater areas. The following dataset includes phytoplankton community data (e.g., taxa, biovolume, cell counts, etc.). Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by...
Great Lakes seamless topobathymetric digital elevation models and shaded relief maps Great Lakes seamless topobathymetric digital elevation models and shaded relief maps
Modifications were made to existing great lakes topobathy data sets to interpolate areas of missing near shore elevation data. Areas with missing elevation data were not interpolated where there was low confidence in the underlying depth. This included rivers, canals, harbors, lakes, reservoirs, etc. Areas important for targeting Phragmites australis management often lie within these...
Anesthetic properties of carbon dioxide on native and invasive fishes Anesthetic properties of carbon dioxide on native and invasive fishes
This study evaluated the anesthetic properties of dissolved carbon dioxide on six fish species to determine its efficacy for use in sedating wild caught fish for surgeries. Phase I of this study aimed to inform induction time, recovery time, and short-term survival of fish using five different concentrations of carbon dioxide at one water temperature. Phase II determined the induction...
Acute Toxicity of Carbon Dioxide to Crayfish Acute Toxicity of Carbon Dioxide to Crayfish
This study evaluated the use of dissolved carbon dioxide as a control method for invasive crayfish. Five concentrations of CO2 were administered to twenty-four test tanks at a water temperature of 5°C. Initially, Red Swamp Crayfish (RSC; Procambarus clarkii) were intended to be the test species used in the study. However, problems with obtaining a healthy population of RSC occurred, so...