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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Mercury in biota from Clear Lake, California (ver. 4.0, April 2026) Mercury in biota from Clear Lake, California (ver. 4.0, April 2026)
Comma-separated values (.csv) file containing data related to mercury in biota collected from Clear Lake California. This data release supersedes Pierce, J.R., Feyrer, F.V., Young, M.J., Enos, E.R., Clause, J.K., Alpers, C.N., and Eagles-Smith, C.A., 2022, Mercury in biota from Clear Lake, California (ver. 3.0, August 2024): U.S. Geological Survey data release, https://doi.org/10.5066...
Demographic, morphometric, and meristic data describing cisco (Coregonus artedi) captured in the Spanish River, Ontario, Canada, 15-16 November 2022 Demographic, morphometric, and meristic data describing cisco (Coregonus artedi) captured in the Spanish River, Ontario, Canada, 15-16 November 2022
These data describe demographic (e.g, age), morphometric (body shape), and meristic (total number of gill rakers) measurements of a probable spawning run of cisco (Coregonus artedi) collected from the Spanish River (Ontario, Canada) immediately downstream of the Espanola Dam from 15-16 November 2022. These data were used to provide baseline biological, demographic, and morphological...
Mississippi River fishes collected by a suite of entanglement and entrapment gears; 2020-2023 Mississippi River fishes collected by a suite of entanglement and entrapment gears; 2020-2023
Black Carp (Mylopharyngodon piceus) were imported to the United States for use as a biological control in aquaculture and have since escaped with reproducing populations in the wild. Habitat use and capture of this species has not been well documented in the wild, thus questions about catchability by gears and habitats are present. This dataset represents sampling effort to capture Black...
Hydroacoustic data from uncrewed surface vehicle (USV) overtakes in Lake Superior, 2022 Hydroacoustic data from uncrewed surface vehicle (USV) overtakes in Lake Superior, 2022
These data were derived from hydroacoustic data collected by uncrewed surface vehicles (USVs) and powered research vessels in Lake Superior in 2022. The powered vessels overtook the USVs to study fish avoidance of survey vessels during traditional acoustic surveys. The water column was divided into four depth groups for analysis. Each USV transect was binned into 30-sec intervals and...
Evaluation of fish behaviors in response to driven and undriven entanglement nets with emphasis on invasive Silver Carp, Central Missouri, 2015-2016 Evaluation of fish behaviors in response to driven and undriven entanglement nets with emphasis on invasive Silver Carp, Central Missouri, 2015-2016
We used Adaptive Resolution Imaging Sonar (ARIS), which is based on Dual-Frequency Identification Sonar (DIDSON) technology to observe net encounter behaviors of bigheaded carps. Gill nets with four different mesh types (8.9 cm bar mesh) and trammel nets with five different mesh sizes (range 5.1-8.9 cm bar mesh) were evaluated. Net sets were undisturbed, or fish were driven with the...
Historical (2001-2013) and End-of-Century Future Climate Simulated Snowpack and Hydrometeorology for the Gallatin River, Montana and Wyoming Historical (2001-2013) and End-of-Century Future Climate Simulated Snowpack and Hydrometeorology for the Gallatin River, Montana and Wyoming
This data release contains output from a numerical snow simulation for a 65 kilometer (km) × 81 km model domain in parts of Montana and Wyoming, United States, encompassing the Gallatin River watershed upstream of the U.S. Geological Survey streamgage near Gallatin Gateway, MT (06043500). Weather Research and Forecasting (WRF) Model convection-permitting and orography-resolving regional...