2,857 Works

Annual California Sea Otter Census 1985-2014 Spring Census Summary

M. Tim Tinker & Brian B Hatfield
This dataset represents an archived record of annual California sea otter surveys from 1985-2014. Survey procedures involve counting animals during the "spring survey" -- generally beginning in late April or early May and usually ending in late May early June but may extend into early July, depending on weather conditions. Annual surveys are organized by survey year and within each year, three shapefiles are included: census summary of southern sea otter, extra limit counts of...

GLM model data sets used to evaluate changes in the hydrodynamics of Anvil Lake, Wisconsin

Dale M. Robertson & James L. Kennedy
Interannual differences in the water quality of Anvil Lake, WI, were examined to determine how water level and climate affect the hydrodynamics and trophic state of shallow lakes, and their importance compared to anthropogenic changes in the watershed. To determine how changes in water level may affect these processes, the General Lake Model (GLM) was used to simulate how the lake s thermal structure should change in response to changes in water level using R....

Data release for manuscript entitled: �Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity�

T.S. Schmidt, R. Fornaroli, A. Ippolito, L.S. Balistrieri, M.J. Tolkkinen, H. Mykr� & T. Muotka
This dataset is comprised of water quality data and benthic macroinvertebrate data collected from basins in Colorado, USA, and Finland. The data includes ancillary water quality characteristics but also a suite of trace metals observed at each site. Also included are modeled outputs that characterize the bioavailability of each trace metal to a biotic ligand. These data were used to explore the importance of metal toxicity and pH as stressors on benthic macroinvertebrates characterized as...

Shoreline change rates in salt marsh units in Edwin B. Forsythe National Wildlife Refuge, New Jersey

Zafer Defne & Neil K. Ganju
Monitoring shoreline change is of interest in many coastal areas because it enables quantification of land loss over time. Evolution of shoreline position is determined by the balance between erosion and accretion along the coast. In the case of salt marshes, erosion along the water boundary causes a loss of ecosystem services, such as habitat provision, carbon storage, and wave attenuation. In terms of vulnerability, higher shoreline erosion rates indicate higher vulnerability. This dataset displays...

Geospatial output data from the RVR Meander model of the Wabash River near the Interstate 64 Bridge near Grayville, Illinois

Justin A. Boldt & Jeremiah G. Lant
Natural river channels continually evolve and change shape over time. As a result, channel evolution or migration can cause problems for bridge structures that are fixed in the flood plain. A once-stable bridge structure that was uninfluenced by a river s shape could be encroached upon by a migrating river channel. The potential effect of the actively meandering Wabash River on the Interstate 64 (I 64) Bridge at the border with Indiana near Grayville, Illinois,...

Geospatial datasets and model for the flood-inundation study of the Wabash River near the Interstate 64 Bridge near Grayville, Illinois

Justin A. Boldt
Natural river channels continually evolve and change shape over time. As a result, channel evolution or migration can cause problems for bridge structures that are fixed in the flood plain. A once-stable bridge structure that was uninfluenced by a river s shape could be encroached upon by a migrating river channel. The potential effect of the actively meandering Wabash River on the Interstate 64 (I 64) Bridge at the border with Indiana near Grayville, Illinois,...

Satellite Telemetry Data for Greater White-fronted Geese (Anser albifrons) Captured on the Arctic Coastal Plain of Alaska, 2013-2017

Brandt W. Meixell
This data release contains one table of data from a four-year study of Greater White-fronted Goose (Anser albifrons frontalis) breeding ecology conducted in the National Petroleum Reserve Alaska during 2013-2017. Location data depict habitat use of 5 marked birds throughout the annual cycle.

Fish Species Composition and Diet Information in Lakes of the Arctic Coastal Plain, Alaska, 2011-2013

Sarah M. Laske
This dataset provides information on fish species composition and their diet information for 16 lakes and 16 ponds at two locations on the central Arctic Coastal Plain, Alaska. In one table, we provide the presence of fish species and the total species count for each lake or pond sampled. This table also includes metrics of surface water connectivity to the stream network. In a second table, stomach content information is provided for fish collected during...

Regression and load estimates for the tributary nutrient and sediment monitoring program on the Great Lakes, 2011-2013

Laura E. Hubbard & Dale M. Robertson
Nutrient and sediment regression information (diagnostics and coefficients) and estimated load data from 30 tributaries to the Great Lakes, beginning of the program (water year 2011) to water year 2013.

Distribution and seasonal differences in Pacific Lamprey and Lampetra spp eDNA across 18 Puget Sound watersheds, 2014 and 2015

Carl O. Ostberg & Dorothy M. Chase
These data contain all the raw results needed to support the conclusions for the final product. These data are water sampling locations (latitude and longitude), date of water sampling, quantitative PCR values for each water sample, and stream flow at USGS stream gauging stations on sampling day.

Data sets for: Variations on a method for evaluating decadal-scale changes in the groundwater quality of two GAMA coastal study units 2004-2014, California GAMA Priority Basin Project

Robert H. Kent
The U.S. Geological Survey collected samples from 50 public supply wells during two distinct sampling episodes (2004-2005 and 2014) on the North-Central California coast. During each sampling episode, the samples were analyzed for 160 water-quality constituents, including water-quality indicators, nutrients, major and minor ions, trace elements, volatile organic compounds, and pesticide compounds. The paired-sample results were submitted to an evaluation method to determine whether or not step trends had occurred in the concentrations of each...

Using colony monitoring devices to evaluate the impacts of land use and forage quality on honey bee health datasets

Matthew Smart & Clint Otto
Honey bee colonies located in 2 apiaries in North Dakota were fitted with two types of monitoring device: pollen traps and scales. Data were collected from devices periodically throughout the 2014 season (May-October). Data derived from pollen traps included: the total fresh weight of pollen collected, the percent crude protein content, the percent content of each amino acid, and DNA identification of floral plant sources. Scales collected colony weight through time.

Airborne electromagnetic and magnetic survey data, Big Sioux aquifer, October 2015, Sioux Falls, South Dakota

David V. Smith
Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2015 along 769 line-kilometers over a 160-square-kilometer area that includes the Big Sioux aquifer between Sioux Falls and Dell Rapids, South Dakota, USA. Data were acquired with the CGG Resolve frequency-domain helicopter-borne electromagnetic system along with a cesium vapor magnetometer. Files included in this data release are: (1) raw and processed AEM and magnetic data; (2) processed AEM resistivity-depth inversions, and (3) a contractor...

Data set used to develop a conceptual framework for effectively anticipating water-quality changes resulting from changes in agricultural activities

Paul D. Capel
Agricultural activities can impact water quality and the health of aquatic ecosystems. A conceptual framework was developed that combined generalized concepts on the movement of water, the environmental behavior of chemicals and eroded soil, and the designed functions of various agricultural activities. The framework addresses the impacts on water quality of a broad range of agricultural chemicals and sediment across a variety of hydrologic settings. This USGS data release contains 2013 streamflow, baseflow, and precipitation...

Shallow ATRIS (sATRIS) Images Dry Tortugas National Park, Florida, 2011

David G. Zawada, Christopher D. Reich & Jessica P. Resnick
Underwater digital images, single-beam bathymetry, and global positioning system (GPS) data were collected July 13 to July 17, 2011 within Dry Tortugas National Park, FL, USA. A total of 272,828 images of the seafloor and water column were collected along pre-defined transect lines and organized into 14 sets: track1, track2, track3, track4, track5, track6, track7, track8, track9, track10, track11, track12, track13, and track14. This data release contains a subset of those images (43,991 images), all...

Metabolic Rate, Body Composition, Foraging Success, Behavior, and GPS Locations of Female Polar Bears (Ursus maritimus), Beaufort Sea, Spring, 2014-2016 and Resting Energetics of an Adult Female Polar Bear

Anthony Pagano
This data release comprises 4 datasets used to measure the field metabolic rate, body composition, foraging success, behavior, and movement patterns of 9 female polar bears on the sea ice of the Beaufort Sea in April, 2014-2016 as well as 1 dataset used to measure the energetic cost of resting in an adult female polar bear at the San Diego Zoo, San Diego, CA. Wild bears were dosed with and had their blood analyzed for...

Appendices for Transgressive-regressive cycles in the metalliferous, oil shale-bearing Heath Formation (Upper Mississippian), central Montana

Julie A. Dumoulin, Craig A. Johnson, Karen D. Kelley, Palma Jarboe, Paul Hackley, Clint Scott & John F. Slack
This set of data files are the appendices for paper titled Transgressive-regressive cycles in the metalliferous, oil shale-bearing Heath Formation (Upper Mississippian), central Montana. The dataset consists of 8 appendices, including a histogram of solid bitumen and vitrinite Ro values, gas chromatograms, isotopic data, organic and inorganic geochemical analyses, and x-ray diffraction mineralogy data.

The thermal regime and species composition of fish and invertebrates in Kelly Warm Spring, Grand Teton National Park, WY-Data

David D. Harper
We evaluated the thermal regime and relative abundance of native and non-native fish and invertebrates within Kelly Warm Spring and Savage Ditch, Grand Teton National Park, Wyoming. Water temperatures within the system remained relatively warm year round with mean temperatures less than 20 degrees Celsius near the source, and greater than 5 degress Celsius approximately 2 km downstream of the spring source. A total of 5 non-native species were collected; Convict/Zebra Cichlids (Cichlasoma nigrofasciatum), Green...

Velocity, depth, and selected water quality profiles of the Lower Penobscot River Estuary in Maine, 2017

Robert W. Dudley & Nicholas W. Stasulis
This data release includes transect data comprising velocity and depths collected by use of an acoustic-doppler current profiler (ADCP), and vertical profile data comprising conductivity, temperature, and depth by use of a conductivity, temperature, and depth (CTD) instrument, as well as tide elevation data at specified locations in the lower Penobscot River and Penobscot Bay (the Penobscot River Estuary).

Science to Inform Management of Floodplain Conservation Lands under Non-Stationary Conditions

Edward A. Bulliner, Garth A. Lindner, Kristen L. Bouska, Craig P. Paukert & Robert B. Jacobson
Within large-river ecosystems, floodplains serve a variety of important ecological functions. A recent survey of 80 managers of floodplain conservation lands along the Upper and Middle Mississippi and Lower Missouri Rivers in the central United States found that the most critical information needed to improve floodplain management centered on metrics for characterizing depth, extent, frequency, duration, and timing of inundation. These metrics can be delivered to managers efficiently through cloud-based interactive maps. To calculate these...

7Q10 Records and Basin Characteristics for 173 basins in Arkansas, Iowa, Kansas, Missouri, Nebraska, and Oklahoma (2017)

Scott C. Worland, William H. Farmer & Julie Kiang
This data release replicates the methods detailed in the 2017 publication titled "Improving predictions of hydrological low-flow indices in ungaged basins using machine learning" for a different data set. The original data set and the associated readme file for the model archive can be viewed here: https://doi.org/10.5066/F7CR5S4T. The original data set contained streamflow data for sites located in South Carolina, Georgia, and Alabama. The data set used in this data release is for 6 states...

MODFLOW-2005 Simulation of Groundwater-Flow Budget for the Lower Apalachicola-Chattahoochee-Flint River Basin in Southwestern Georgia and Parts of Florida and Alabama, 2008 12

Nicasio Sepulveda & Jaime A. Painter
As part of the National Water Census program in the Apalachicola-Chattahoochee-Flint (ACF) River Basin, the U.S. Geological Survey evaluated the groundwater budget of the lower ACF, with particular emphasis on recharge, characterizing the spatial and temporal relation between surface water and groundwater, and groundwater pumping. To evaluate the hydrologic budget of the lower ACF River Basin, a groundwater-flow model, constructed using MODFLOW-2005, was developed for the Upper Floridan aquifer and overlying semiconfining unit for 2008...

Shallow ATRIS (sATRIS) Images Dry Tortugas National Park, Florida, 2009

David G. Zawada & Jessica P. Resnick
Underwater digital images, single-beam bathymetry, and global positioning system (GPS) data were collected June 13 14, 2009 at Pulaski Shoal within Dry Tortugas National Park, FL, USA. A total of 195,406 images of the seafloor and water column were collected along pre-defined transect lines and organized into 3 sets: track1, track2, and track3. This data release contains a subset of those images (32,135 images), all of which were used for benthic habitat classification, and contain...

Cottonwood Lake Study Area - Invertebrate Weights

David M. Mushet, Ned H. Euless & Matthew Solensky
This dataset contains aquatic macro-invertebrate sampling data (weights) for wetlands in the Cottonwood Lake Study Area, Stutsman County, North Dakota. This dataset is part of the Missouri Coteau Wetland Ecosystem Observatory database that is a collection of abiotic and biotic data documenting biotic and abiotic responses to long-term climate and land-use change in the Prairie Pothole Region (PPR) of the U.S. The PPR has a naturally dynamic climate that is characterized by extended wet and...

2016 Upper Missouri River Dye Trace Experiment

Susannah O. Erwin
Data were collected in June 2016 as part of a dye-trace experiment in the Missouri River downstream from Fort Peck Dam, Montana, USA. Fluorometers were deployed at 8 measurement stations over a 135-km study reach. Approximately 51 L of Rhodamine WT (RWT) dye was injected on 26 June 2016 at 14:30 MDT. The injection occured along a transect located approximately 3000 meters downstream from the confluence of the Milk and Missouri Rivers. Injection was performed...

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