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Data

CERC makes scientific data available to the public through the USGS ScienceBase catalog. Our most recent data releases are highlighted below. 

Filter Total Items: 278

Code and outputs for a mallard reproduction model incorporating migration delays and reduced adult body mass Code and outputs for a mallard reproduction model incorporating migration delays and reduced adult body mass

These data are outputs from a mallard (Anas platyrhynchos) reproduction model that accounts for breeding ground arrival time and the body mass of individuals. Specifically, adult female mallards that arrive late or with lower body mass have the potential for lower clutch sizes and are less likely to renest if a nest fails. The model is based on an existing mallard reproduction model that...

Development and optimization of species-specific qPCR assays for eDNA detection of the mucket (Ortamannia ligamentina) and spectaclecase (Cumberlandia monodonta) mussels’ male mitotype Development and optimization of species-specific qPCR assays for eDNA detection of the mucket (Ortamannia ligamentina) and spectaclecase (Cumberlandia monodonta) mussels’ male mitotype

This dataset describes the sensitivity (limit of detection and limit of quantification) and specificity (list of species tested against the assays) of two qPCR assays designed to detect the male mitotype of two freshwater mussel species Ortmanniana ligamentina and Cumberlandia monodonta from water samples (eDNA).

Measurement of Per- and Polyfluoroalkyl Substances in Graminaceous plants using three extraction techniques Measurement of Per- and Polyfluoroalkyl Substances in Graminaceous plants using three extraction techniques

Dataset contains measured concentrations of PFAS analytes and limits of detection/quantification for 37 total samples. There are 82 total PFAS analytes (7 non-extracted internal standards, 24 extracted internal standards, and 51 target native analytes) and each individual sample has been quantified for all 82 of these compounds. Samples are extracts of plant tissues from three sources...

Juvenile Virile Crayfish (Faxonius virilis) length, weight, and consumption after a 28-day sublethal nickel exposure with associated water quality data Juvenile Virile Crayfish (Faxonius virilis) length, weight, and consumption after a 28-day sublethal nickel exposure with associated water quality data

Data was collected in association with the exposure of aqueous nickel (NiCl2-H2O) to juvenile crayfish (Faxonius virilis) for 29 days at different concentrations to observe any differences in growth (after 28 days) and food consumption (on day 29). Data for the growth component of the study included crayfish wet weight (initial and final), final carapace length, and crayfish sex. The...

Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022 Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022

The orthomosaic, digital surface model and point cloud presented here document conditions at Pickle Pond in Superior, Wisconsin in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were...

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...

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.

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...

Otter Creek pre-restoration orthomosaic and elevation products, Toledo, Ohio, September 2022 Otter Creek pre-restoration orthomosaic and elevation products, Toledo, Ohio, September 2022

The orthomosaic, digital surface model and point cloud presented here document conditions at Otter Creek in Toledo, Ohio in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were approximately 400...

Per- and polyfluoroalkyl substance concentrations in water, sediment, and tissue in a stream food web contaminated by food processing facility wastewater, 2021-2022 Per- and polyfluoroalkyl substance concentrations in water, sediment, and tissue in a stream food web contaminated by food processing facility wastewater, 2021-2022

This dataset contains chemistry results for water, sediment, and various tissue samples collected upstream and downstream of a PFAS source (treated industrial wastewater). Samples were analyzed by a USGS laboratory (National Water Quality Laboratory; Denver, CO) and SGS-AXYS (Sidney, BC, Canada). Concentration, surrogate recovery, and blank results are presented within.

Swan Lake National Wildlife Refuge pre-restoration orthoimagery and elevation products, spring 2025 Swan Lake National Wildlife Refuge pre-restoration orthoimagery and elevation products, spring 2025

The products presented here document conditions at the Swan Lake National Wildlife Refuge, Missouri from March to May, 2025. Imagery was collected to document conditions at areas in the north (“N_wetlands”) and east (“E_wetlands”) portions of the refuge prior to restoration to modify hydrology and habitat and improve future management capabilities. Imagery also captured a section of...
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