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Effects of food resources on fatty acid composition, growth and survival of freshwater mussels Increased nutrient and sediment loading have caused observable changes in algal community composition, and thereby, altered the quality and quantity of food resources available to native freshwater mussels. Our objective was to characterize the relationship between nutrient conditions and mussel food quality and examine the effects on the fatty acid composition, growth and survival of juvenile mussels. Juvenile Lampsilis cardium and L. siliquoidea were deployed in cages for 28 d at four riverine and four lacustrine sites in the lower St. Croix River, Minnesota/Wisconsin, USA. Mussel foot tissue and food resources (four seston fractions and surficial sediment) were analyzed for quantitative fatty acid (FA) composition.... Categories: Data; Types: Citation; Tags: Mississippi River, Prescott, WI, St Croix Falls, WI, St Croix River, St Croix River, All tags... USGS Science Data Catalog (SDC), fatty acid composition, food resources, freshwater mussels, nutrients, sediment, survival and growth, Fewer tags 2003 Blood Corticosterone Common Loons: Data To help determine whether Hg had a causal effect on corticosterone, we investigated the impact of experimental Hg intake on the corticosterone stress response in captive juvenile loons. Juveniles were subjected to three different feeding regimes: 0, 0.4 and 1.2 µg Hg (as MeHgCL)/g wet weight (ww) fish. We then measured baseline and 30 min post-solitary confinement stressor corticosterone concentrations. The data set consists of times of blood draws and dietary Hg levels. Blood samples and data set were provided to the senior author for analysis. Categories: Data; Types: Citation; Tags: Corticosterone, Loon, Piscivorous bird, Stress, USGS Science Data Catalog (SDC), All tags... Upper Midwest Environmental Sciences Center, Wisconsin, mercury, Fewer tags Using dissolved carbon dioxide to alter the behavior of invasive Round Goby Carbon dioxide (CO2) is under consideration as a chemical fish deterrent at pinch points in rivers (e.g., inside locks) to reduce unwanted fish passage. This study evaluated the behavioral responses of invasive round goby (Neogobius melanostomus) to dissolved CO2 in laboratory tanks. The goal of this project was to quantify CO2 concentrations that modify round goby behavior. More specifically, avoidance behavior (voluntary response) and loss of equilibrium (involuntary response) were quantified across 5, 15, and 25°C water temperatures. These data can be used to inform future field testing of CO2 as an invasive fish deterrent. Spreadsheets include data that were used to evaluate the efficacy of carbon dioxide (CO2)... Categories: Data; Types: Citation; Tags: Round goby, USGS Science Data Catalog (SDC), Upper Midwest Environmental Sciences Center, avoidance, behavior, All tags... carbon dioxide, water temperature, Fewer tags A refined electrofishing technique for collecting Silver Carp: Implications for management. Supporting data The table provides all fish collected using two different electrofishing methods at Illinois River sites in 2012 and 2013. Length and weights were taken on most species and gender was taken from Silver Carp. Fishes were categorized whether they were netters (caught by nets) or jumpers (jumped in the boat while sampling) and only netters were used in analyses. Large numbers of shad were collected in 2013 and an additional spreadsheet includes abundance data in an aggregated form for those sites. The data is not sensitive/classified and there are no legal restrictions on who may obtain or use the data. Categories: Data; Types: Citation; Tags: Fishes, Fishing with Benthic Mobile Gear, Illinois, Illinois River, Native fish community, All tags... USGS Science Data Catalog (SDC), Upper Mississippi River System, acoustic doppler current profiling, electrofishing, field sampling, fish, fisheries, fishery resources, Fewer tags Seasonal trends in eDNA detection and occupancy of bigheaded carps, Wabash River, IN: Raw Data Invasive species may vary in their seasonal distribution and abundance due to environmental conditions such as precipitation and temperature. Bigheaded carps, which include silver and bighead carp, are one such taxon of invasive species that appear to change habitats seasonally. Seasonal changes in bigheaded carp distribution may occur because of hydrological changes, water temperature changes, and spawning activities. Monitoring this seasonal dispersal and migration is important for management to control the population size and spread of the species. We examined if environmental DNA (eDNA) approaches could detect seasonal changes in the occurrence of DNA in water samples and used these approaches to calculate the... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Americus, French Post, Indiana, Mascouten, Occupancy modeling, All tags... Presence/absence, USGS Science Data Catalog (SDC), Wabash River, big headed carp, invasive species, Fewer tags ADCP data from rivers in Alaska, September 18–20, 2016 The U.S. Geological Survey obtained measurements of channel geometry, flow velocity, and river discharge from five rivers in Alaska September 18–20, 2016, to support research on remote sensing of river discharge. The streamflow data were acquired from the Knik, Matanuska, Chena, and Salcha Rivers and Montana Creek using TeleDyne RD Instruments Acoustic Doppler Current Profilers (ADCPs), including the RioPro, StreamPro, and RiverRay models. The original *.mmt and *.pd0 format files are provided in this data release. This data release supports the following article: Legleiter, C.J., Kinzel, P.J., and Nelson, J.M., 2017, Remote measurement of river discharge using thermal particle image velocimetry (PIV) and various... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Chena River, Knik River, Matanuska River, Montana Creek, All tags... Salcha River, USGS Science Data Catalog (SDC), channel geometry, flow velocity, river discharge, water depth, Fewer tags Experimental observations on the decay of environmental DNA from bighead and silver carp-Data Interest in the field of environmental DNA (eDNA) is growing rapidly and eDNA surveys are becoming an important consideration for aquatic resource managers dealing with invasive species. However, in order for eDNA monitoring to mature as a research and management tool, there are several critical knowledge gaps that must be filled. One such gap is the fate of eDNA materials in the aquatic environment. Understanding the environmental factors that influence the decay of eDNA and how these factors impact detection probabilities over time and space could have significant implications for eDNA survey design and data interpretation. Here we experimentally explore eDNA decay in waste materials and reproductive cells obtained... Categories: Data; Types: Citation; Tags: Aquatic Biology, Ecology, Environmental Health, Genetics, Missouri, All tags... USGS Science Data Catalog (SDC), eDNA, environmental factors, microbial load, pH, water temperature, Fewer tags Water Balance Model Inputs and Outputs for the Conterminous United States, 1900-2015 This metadata record describes monthly input and output data covering the period 1900-2015 for a water-balance model described in McCabe and Wolock (2011). The input datasets are precipitation (PPT) and air temperature (TAV) from the PRISM group at Oregon State University. The model outputs include estimated potential evapotranspiration (PET), actual evapotranspiration (AET), runoff (RUN) (streamflow per unit area), soil moisture storage (STO), and snowfall (SNO). The datasets are arranged in tables of monthly total or average values measured in millimeters or degrees C and then multiplied by 100. The data are indexed by the identifier PRISMID, which refers to an ASCII raster of cells in an associated file named... Types: Citation; Tags: Conterminous United States, National Water Quality Program, USGS Science Data Catalog (SDC), Water Resources, evaporation, All tags... precipitation, streamflow, temperature, Fewer tags Rangeland Ecology Monitoring Data, Utah, 1967-2013 The dataset describes rangeland monitoring results from the Hanksville, UT (USA) area. Monitoring results consist of canopy cover of plant species and functional types according to ecological site group from 1967 to 2013. The study area is bordered on the north by the Wayne-Emery County line, on the west by Capitol Reef National Park, and on the south and east by the Colorado River, Glen Canyon National Recreation Area, and Canyonlands National Park. Cover was estimated every 1 to 5 years (except the last measurement that had a 12 year interval) from 1967 to 2013 at 36 permanently marked sites in 15 livestock grazing allotments/pastures. Canopy cover of perennial plant species was estimated to the nearest tenth... Types: Citation; Tags: Climate change, Colorado Plateau, Ecological sites, Garfield County, Grazing, All tags... Hanksville, Land-use change, Landscape Scale, Plant Responses, Precipitation, Rangeland Monitoring, San Juan County, Soils, State-and-transition models, USGS Science Data Catalog (SDC), United States, Utah, Vegetation, Wayne County, Fewer tags Condition of Surgical Acoustic Tag Incisions in Recaptured Lake Erie Walleye (2011-2016) Intracoelomic implantation of electronic tags has become a common method in fishery research, but rarely are fish examined by scientists after release to understand the extent that surgical incisions have healed. Walleye (Sander vitreus) are a valuable, highly-exploited fishery resource in the Laurentian Great Lakes. Here, fishery capture of walleye with internal acoustic transmitters combined with a high reward program provided multiple opportunities to examine photographs and quantify the status of surgical incisions. Walleye (n=926) from reef and river spawning populations in Lake Erie and Lake Huron were implanted with acoustic transmitters during spring spawning events from 2011 to 2016. Incisions were closed... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Detroit, Lake Huron, Lower Maumee, Plant and animal tagging, Sandusky, All tags... Tittabawassee, USGS Science Data Catalog (SDC), Western Lake Erie, biota, capturing (animals), fish, Fewer tags Riparian Vegetation and Environmental Variables, Colorado River, 2014—Data These data consist of species relative cover, percent cover of dead plant material, percent cover of soil and rock, and a variety of broad - and local- scale environmental variables. These data relate to sample sites along the Colorado River through Grand Canyon between Lees Ferry and river mile 245. The plant and ground cover data included here were originally collected as a part of annual vegetation monitoring by Grand Canyon Monitoring and Research Center. Environmental variables were either recorded in the field or obtained through other data sources. Species and ground cover data were collected in August and September 2014 at 96 randomly selected sample sites that were approximately evenly distributed along... Types: Citation; Tags: American Southwest, Arizona, Colorado River, Environmental variables, Grand Canyon, All tags... Landscape ecology, Riparian vegetation, Southwestern United States, USGS Science Data Catalog (SDC), United States, Vegetation composition, Fewer tags Modeled 2030 land cover for the Northern Glaciated Plains ecoregion The USGS Forecasting Scenarios of Land-use Change (FORE-SCE) model was used to produce an agricultural biofuel scenarios for the Northern Glaciated Plains, from 2012 to 2030. The modeling used parcel data from the USDA's Common Land Unit (CLU) data set to represent real, contiguous ownership and land management units. A Monte Carlo approach was used to create 50 unique replicates of potential landscape conditions in the future, based on a agricultural scenario from the U.S. Department of Energy's Billion Ton Update. The data are spatially explicit, covering the entire Northern Glaciated Plains ecoregions (an EPA Level III ecoregion), with a spatial resolution of 30-meters and 22 unique land-cover classes (including... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: FORE-SCE, Great Plains, Land Cover, Minnesota, Model, All tags... North Dakota, Northern Glaciated Plains Ecoregion, Northern Glaciated Plains Ecoregion, Parcel, Scenario, South Dakota, USGS, USGS Science Data Catalog (SDC), United States, projection, Fewer tags Sediment chemistry and sediment toxicity in wadable streams across the Midwestern United States, 2013 These data present chemistry and toxicity results from freshwater stream sediments collected from 99 wadable stream sites across eleven states in the Midwestern U.S. as one component of a larger USGS study in the summer of 2013. This data presents a selected suite of chemistry collected at these sites (PAHs, Organochlorines, PCBs, Trace Elements, and current use pesticides) used in calculating a Probable Effect Concentration-Likely Effect Benchmark quotient mixture score for contaminants measured in sediments. The toxicity data presents results of toxicity tests following ASTM and US EPA standard methods for sediment toxicity tests with the amphipod Hyalella azteca (28-d exposure), the midge Chironomus dilutus (10-d),... Categories: Data; Types: Citation; Tags: Illinois, Indiana, Iowa, Kansas, Kentucky, All tags... Michigan, Minnesota, Missouri, Nebraska, Ohio, South Dakota, USGS Science Data Catalog (SDC), Water Quality, Wisconsin, chemistry, invertebrates, monitoring, pesticides, pollution, sediment, toxicity, Fewer tags Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110 Digital elevation model outputs from wetland accreting rate model of ecosystem resilience (WARMER) at ten year intervals from 2010-2110. Baseline elevations were collected with RTK GPS units and LiDAR elevations in non-surveyed areas were also corrected using LEAN method. Historical accretion rates were collected at each salt marsh and used to parameterize WARMER, predicting future elevations. These data support the following publication: Rosencranz JA, Thorne KM, Buffington KJ, et al. Sea‐level rise, habitat loss, and potential extirpation of a salt marsh specialist bird in urbanized landscapes. Ecol Evol. 2018;00:1–11. https://doi.org/10.1002/ece3.4196 Types: Citation; Tags: California, Carpinteria, Mugu Lagoon, Remote Sensing, Seal Beach National Wildlife Refuge, All tags... Sweetwater, Tijuana Estuary, USGS Science Data Catalog (SDC), Upper Newport Bay, biota, dynamic salt marsh accretion model, environment, marsh, salt marsh, wetland ecosystems, Fewer tags Serum biochemistries of Pacific black brant The data set contains results for nine serum biochemistries in molting Pacific black brant (Branta bernicla nigricans). These data were used to calculate reference intervals (sometimes referred to as normal values) for the nine serum biochemistries. All brant were after-hatch year. All samples were collected in 2006 and 2007 in the Teshekpuk Lake Special Area, Alaska. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Arctic Coastal Plain, Serum biochemistry, Teshekpuk Lake Special Area, USGS Science Data Catalog (SDC) Matched ecological assessment and stream gaging data for the CONUS Ecological assessment data from the USGS National Water-Quality Assessment Program and the USEPA National River and Stream Assessment were reviewed and records were retained from sampling sites co-located with active USGS stream gages. A limited amount of ancillary data, including location, physical watershed features, and basic water chemistry data for each site were also retained. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Ecology, National Water Quality Program, USGS Science Data Catalog (SDC), United States, All tags... biological diversity, stream-gage measurement, Fewer tags Datasets of High-throughput DNA Sequencing, Genetic Fingerprinting, and Quantitative PCR from Upper Klamath Lake, Oregon, 2013-14 Monitoring the community structure and metabolic activities of cyanobacterial blooms in Upper Klamath Lake, Oregon, is critical to lake management because these blooms degrade water quality and produce toxic microcystins that are harmful to humans, domestic animals, and wildlife. Genetic tools, such as DNA fingerprinting by terminal restriction fragment length polymorphism (T-RFLP) analysis, high-throughput DNA sequencing (HTS), and real-time, quantitative polymerase chain reaction (qPCR) provide more sensitive and rapid assessments of bloom ecology than traditional techniques. The objectives of this study were (1) to characterize the microbial community at one site in Upper Klamath Lake and determine changes in... Categories: Data; Types: Citation; Tags: Genetics, USGS Science Data Catalog (SDC), Upper Klamath Lake, population dynamics, algal blooms, ecology, water quality Bioelectrical impedance analysis for an endangered desert fish—Data These data were used to examine the effectiveness of a non-lethal tool (Bioelectrical Impedance Analysis, "BIA") to estimate the physiological condition of endangered and threatened fishes in the Colorado River Basin. We conducted laboratory trials using hatchery-raised Humpback Chub and Bonytail and wild-captured Roundtail Chub, where fish were subjected to different feeding trials to elucidate a response in physiological condition and different temperature treatments to approximate field conditions. At the end of each 6-week trial fish were removed from tanks, lateral and dorsal measurements of BIA were taken, and fish were sacrificed for proximate composition analysis (lipid, protein, water, ash, dry mass, energy... Types: Citation; Tags: Arizona, Bioelectrical Impedance Analysis, Bonytail, Colorado River Basin, Dorsal measurements, All tags... Fish condition, Flagstaff, Humpback Chub, Laboratory trials, Lateral measurements, Mortality rates, Proximate composition analysis, Roundtail Chub, Temperature correction equations, Threatened and endangered species, USGS Science Data Catalog (SDC), Fewer tags Detailed geologic mapping geodatabase for the Blue Ridge Parkway in Virginia with station point photographs The US Geological Survey, in cooperation with the National Park Service, mapped 35 7.5-minute quadrangles, within a 2-mile-wide+ corridor centered on the Parkway, from BLRI (Blue Ridge Parkway) Mile Post (MP) 0 near Afton, Virginia southward to MP 218 at Cumberland Knob, approximately 1.3 km south of the Virginia – North Carolina State Line. Detailed bedrock geologic mapping for this project was conducted at 1:24,000-scale by systematically traversing roads, trails, creeks, and ridges within and adjacent to the 2-mile-wide+ corridor along the 216.9-mile length of the BLRI in Virginia. Geologic data at more than 23,000 station points were collected during this project (September 2009 – February 2014), with approximately... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Adney Gap, Air Bellows Gap, Alligator Back Formation, Antietam Formation, Ashe Formation, All tags... Ashville, Bald Mountain, Balsam Gap, Beacon Heights, Bear Den, Bear Mountain Gap, Bearwallow Gap, Bedrock, Beech Gap, Beetree Gap, Benge Gap, Big Island, Big Witch Gap, Biltmore Estate, Blackhorse Gap, Blowing Rock, Blue Ridge Music Center Visitor Center, Blue Ridge Park Visitor Center and Park Headquarters, Blue Ridge Parkway, Bluff Mountain, Bottom Creek Metagranitoid Suite, Buck Creek Gap, Buena Vista, Bull Gap, Carbonate, Cherokee, Cherokee Indian Reservation, Chestoa View, Chilhowee Group, Cold Mountain, Conococheague Formation, Crabtree Falls, Crabtree Faults, Craggy Gardens Visitor Center, Craven Gap, Crossnore, Crossnore Plutonic Suite, Cumberland Knob, Daniel Boone's Trace, Deep Gap, Devils Backbone Overlook, Devils Courthouse, Diabase, Doughton Park, E.B. Jeffress Park, Elbrook Formation, Elk Pasture Gap, Ervin, Ervin, Fallingwater Cascades, Fancy Gap, Flat Rock, Folds, Formation, Fox Hunters Paradise, Geology, George Washington National Forest, Gillespie Gap, Glendale Springs, Gneiss, Graggy Dome, Grandfather Mountain, Grandfather Mountain State Park, Granite, Graveyard Fields, Great Valley Overlook, Green Knob, Greenstone Trail, Groundhog Mountain, Hampton Formation, Harpers Formation, Hawksbill Mountain, Hominy Creek, Humpback Mountain, Humpback Rocks Visitor Center, Indian Gap, Irish Gap, James River, James River Visitor Center and Canal, Jefferson National Forest, Julian Price Memorial Park, Jumpinoff Rock, Lake Powhaten, Laurel Springs, Lineville River, Linville, Linville Falls, Linville Falls Visitor Center, Little Switzerland, Looking Glass Rock Overlook, Lynchburg Group, Mabry Hill, Martinsburg Formation, McKinney Gap, Meadows of Dan, Mesoproterozoic gneisses of the Fries Thrust Sheet, Metabasalt, Metagranitoid, Moses H. Cone Memorial Park and Visitor Center, Mount Jefferson State Park, Mount Mitchell, Mount Mitchell State Park, Mount Pisgah, Museum of North Carolina Minerals Visitor Center, N&W Railroad Overlook, Nantahala National Forest, Normal Fault, North Carolina, North Carolina Arboretum, Northwest Trading Post, Oconalufte Visitor Center, Onion Mountain Overlook, Orchard Gap, Oteen, Otter Creek, Overmountain Victory Nation Historic Trail, Peach Bottom Mountain, Peaks of Otter Metagranitoid, Peaks of Otter Visitor Center, Petites Gap, Pilot Gneiss, Pineola, Pipers Gap, Pisgah National Forest, Poor Mountain, Powell Gap, Price Lake, Puckett Cabin, Purgatory Overlook, Rakes Millpond, Ravens Roost, Reverse Fault, Richland Balsam, Roanoke Mountain, Roanoke River, Roanoke River Gorge, Roanoke Valley Overlook, Rocky Knob, Rocky Knob Visitor Center, Sandy Creek Gneiss, Shady Dolomite, Sharp Top, Sherando Lake, Skyland, Southern End, Staunton River, Stone Mountain State Park, Structure, Sugarloaf Mountain, Swannanoa River, Swift Run Formation, Table Rock Mountain, Terrapin Mountain, The Lump, The Saddle, Thrust Fault, Tunnel Gap, Twenty Minute Cliff, Tye River, Tye River Gap, USGS Science Data Catalog (SDC), Unicoi Formation, Virginia, Virginia Explore Park and Visitor Center, Volunteer Gap, Wagon Road Gap, Watauga River, Waterrock Knob Visitor Center, Wayneboro Formation, Waynesboro, Wayneville, Weverton Formation, Whites Gap Overlook, Wigwarm Falls, Woodlaw, Wrights Creek, Yankee Horse Ridge, Z.B. Vance Birthplace, Fewer tags PaRadonGW.shp - Evaluation of Radon Occurrence in Groundwater from 16 Geologic Units in Pennsylvania, 1986–2015, with Application to Potential Radon Exposure from Groundwater and Indoor Air This dataset documents results from 1,041 groundwater samples collected during 1986‒2015 from 16 geologic units in Pennsylvania associated with 25 or more groundwater samples with activities or concentrations of radon-222. Radon-222 is hereafter referred to as “radon.” These 16 geologic units were evaluated in an effort to identify variations in radon concentrations and to classify potential radon exposure from groundwater and indoor air. This dataset was developed for the Pennsylvania Environmental Public Health Tracking (PAEPHT) Program to describe the spatial distribution of radon concentrations in groundwater in Pennsylvania and to illustrate data gaps that exist throughout the State. The PAEPHT Program is part... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Environmental Health, Geography, Hydrogeology, Pennsylvania, USGS Science Data Catalog (SDC), All tags... Water Quality, geology, groundwater quality, radon-222, radon, indoor air, human health, Fewer tags « 1 2 3 4 5 ... 35 »