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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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Effects of dietary organic selenium on growth, survival, and reproduction in Hyalella azteca and Chironomus dilutus Effects of dietary organic selenium on growth, survival, and reproduction in Hyalella azteca and Chironomus dilutus

Chronic selenium toxicity thresholds are based primarily on dietary organoselenium exposure and subsequent reproductive effects in fish. Available chronic selenium toxicity data suggests that invertebrates are less sensitive than fish, but chronic invertebrate studies are limited. We evaluated yeast-based diets for chronic toxicity studies with Hyalella azteca and Chironomus dilutus...

Active location of fish telemetry tags of fish in the Mississippi and Missouri rivers, and tributaries, October 2019 – September 2023 Active location of fish telemetry tags of fish in the Mississippi and Missouri rivers, and tributaries, October 2019 – September 2023

This dataset represents coarse active relocations of acoustic transmitters in telemetry tagged fish of various species detected among the Mississippi and Missouri rivers near their confluence. These detections of unknown tagged individuals were incidental and occur within the range and frequency of effort for a focused active telemetry study on invasive carp. These river segments consist...

CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska CoSMoS-AK Modeled flood and erosion hazards at Utqiagvik - Coastal Alaska

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR) and projected coastal storms. Products include projected flood depths, flood extents including uncertainties, water elevations, wave heights, velocity hazards, and erosion and sedimentation patterns. These are generated using a suite of numerical models driven by outputs from...

Mollusk diet of wild caught Black Carp (Mylopharyngodon piceus) from the Mississippi River drainage, 2019 - 2023 Mollusk diet of wild caught Black Carp (Mylopharyngodon piceus) from the Mississippi River drainage, 2019 - 2023

The dataset is an inventory (enumeration and taxonomic identification) of mollusk diet items consumed by wild-caught black carp (Mylopharyngodon piceus), based on the examination of gut contents from black carp collected in the lower Mississippi River drainage of the U.S. in 2019 through 2023.

Patuxent Box Turtle Study Encounter Data Patuxent Box Turtle Study Encounter Data

The data set consists of eastern box turtle encounters made at Patuxent Refuge from 2019-2025 as part of organized field surveys on Central Tract.

Grass Carp diet and environmental data from the Lake Erie and Lake Michigan basins from 2019 to 2022 Grass Carp diet and environmental data from the Lake Erie and Lake Michigan basins from 2019 to 2022

Data include metabarcoding read data from grass carp associated with the Great Lakes removal program from 2019 to 2022. The anterior portion of the digestive tract was carefully separated from other organs for each captured grass carp and stored in 180 proof non-denatured ethanol. A 25 ml of subsampled gut contents was used for DNA purification and sequencing using polymerase chain...
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