All Data

Airborne electromagnetic (AEM) and magnetic survey data were collected during November 2018 over a total distance of 1,480 line kilometers in the Maricopa Flats and surrounding areas of southwestern San Joaquin Valley of California adjacent to the Buena Vista, Midway Sunset, Yowlumne, Los Lobos, Pioneer, Landslide, San Emidio Nose, Rio Viejo, and White Wolf oil fields. These data were...

This dataset includes files associated with a 21-day nutrient diffusing substrate experiment run in Pear Lake of Sequoia National Park, California in summer 2022. The experiment was designed to evaluate the effects of different treatment levels of a macronutrient (nitrogen) and a micronutrient (copper) on periphyton growth and community structure in an alpine lake. While the effects of...

These RNA sequencing (RNA-seq) data were collected to better understand how exposure to environmentally relevant doses of nitrate affects the brain transcriptome in fathead minnows. Fish were exposed to nominal doses of 0, 2, 5, 10, 25, or 100 mg/L nitrate nitrogen (NO3-N), added to flow-through well water as sodium nitrate. Transcriptomic data were collected from three experiments that...

This dataset includes eDNA concentrations of water samples from an experimental release of lake trout (Salvelinus namaycush) slurry used to analyze eDNA transport in the Big Piney River, Missouri. The spectaclecase (Cumberlandia monodonta) was also included as a target species due to the proximity of a known spectaclecase population at the slurry release site. The slurry, a frozen block...

In January 2023, the USGS demonstrated the use of side-scan sonar and down-imaging sonar to locate and quantify fish including invasive carp. A dike pool in the study area was surveyed (254-meter reach) using a Humminbird Helix sonar system. Sonar surveys included concurrent recordings of side-scan and down-imaging sonar. Proprietary sonar data were converted to PNG image files (i.e...

This dataset contains measurements of in situ benthic biofilms from rivers of northwest Alaska during summer and fall 2016-2019. Measurements were made using a Benthotorch (bbe Moldaenke, Kiel, Germany) hand-held fluorometer, which distinguishes taxa (cyanobacteria, green algae, diatoms) and provides estimates of standing biomass.

These data were collected to determine the effect of nitrapyrin, a commercial nitrification inhibitor, on nitrification by a diverse nitrifier-enriched microbial (NEM) community. The NEM community was originally collected from an aquaculture pond in Columbia, Missouri and cultured in HEPES-buffered, minimal mineral salts media, supplemented with a nominal dose of 2 milligrams per liter...

Nitrogen (N), phosphorus (P), and suspended sediment (SS) loads in Fairfax County, Virginia streams were calculated using monitoring data from 5 intensively monitored watersheds for the period from water year (October - September) 2008 through 2022. Nutrient (N and P) and SS loads were computed using a surrogate (multiple-linear regression) approach with lab analyzed N, P, and SS samples...

As part of the Interconnected Coastal Environments at Decadal Timescales and Coastal Sediment Availability and Flux projects, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore geophysical survey to map the shoreface and characterize stratigraphy near Wallops and Assawoman Islands, Virginia (VA). The purpose of this...

A pair of modified marine radars were deployed at two locations, the Clark's Fork Fish Hatchery (near Powell, Wyoming) and the Timber Creek Ranger Station (near Meeteetse, Wyoming), during the summer of 2023 and 2024. The radars collected data on flying animals with a focus on army cutworm (Euxoa auxiliaris) moths within a couple kilometers of the radars during most of the army cutworm...

The majority of landbirds breeding in eastern North America migrate through the Gulf of America (Gulf of Mexico; hereafter Gulf) region during spring and fall. Rarely do migratory landbirds make nonstop flights between breeding and non-breeding areas, rather they stopover in habitats (a.k.a. stopover sites) en route to rest and refuel. Forested habitats in the northern Gulf region...

The Ecology Section at the USGS Conte Laboratory has conducted individual tagging studies in a number of locations. We provide data here for three smaller studies (Sawmill river in MA, USA, Shorey brook in ME, USA, and Catamaran brook in NB, CA). The goal is to understand the strength and direction of drivers on fish growth, movement and survival in the wild. We hope to provide a...