42 datasets found
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Federal
Pacific Northwest Avian Scavenger Lead and Mercury Dataset, 2012-2016
Department of the Interior —
The dataset includes the bird species, region where sampled, sampling site, capture location, mercury concentration in whole blood, lead concentration in whole blood,... -
Federal
Isotope data of vesicomyid clams collected in the Pacific Ocean off the Oregon coastline in 2019
Department of the Interior —
Isotope data for vesicomyid clams collected in the Pacific Ocean off the Oregon coastline in 2019. -
Federal
Data for Analysis of Endocrine Disrupting Compounds in Lake Mead National Recreation Area near Las Vegas, Nevada
Department of the Interior —
This data release presents the results of analyses of biota and water samples collected on multiple dates from 2007 to 2014 at 3 locations in Lake Mead National... -
Federal
Microchemistry demographics and development data from wild caught black carp in the Mississippi River basin, 2011-18
Department of the Interior —
Data consists of ploidy, otolith stable isotope analysis and microchemistry, age, weight, sex, length and geolocation data from wild caught black carp... -
Federal
Morphometric, Age, Visible Abnormalities, Skin and Liver Neoplasms, and Stable Isotopes in White Sucker Collected in the St. Louis River and Estuary, Minnesota/Wisconsin, 2011-2015
Department of the Interior —
The dataset provides length, weight, age, observations of visible external abnormalities, liver and skin histopathology and stable isotopes of white sucker captured... -
Federal
Carbon Isotope Concentrations in Stream Food Webs of the Arctic Network National Parks, Alaska, 2014-2016
Department of the Interior —
This dataset is one table with information on the carbon isotopes in samples collected from organic and mineral soils, streams, algae, invertebrates, and fish in the... -
Federal
The Stable Carbon Isotope Dataset of Individual Foraminifer (Orbulina universa) Shells Measured by Secondary Ion Mass Spectrometry and Gas-Source Mass Spectrometry
Department of the Interior —
This data release contains data associated with the journal article, “Comparison of δ13C Analyses on Individual Foraminifer (Orbulina universa) Shells by Secondary... -
Federal
Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: implications for parasite-host trophic studies
Department of the Interior —
Despite being one of the most prevalent forms of consumerism in ecological communities, parasitism has largely been excluded from food-web models. Stable isotope... -
Federal
Length, Weight, Energy Density, and Isotopic Values of Fish from Rivers in Northwest Alaska, 2015-2019
Department of the Interior —
This dataset contains length, weight, energy density, and isotope values of fish collected in northwest Alaskan rivers during summer and fall 2015-2019. -
Federal
Stable isotope values for Dry Tortugas nesting loggerheads sampled 2013-2018
Department of the Interior —
We used a combination of stable isotope analysis of carbon and nitrogen values in nesting loggerhead sea turtle samples to describe the foraging area used by each... -
Federal
Comparison of methane concentration and stable carbon isotope data for natural samples analyzed by discrete sample introduction module - cavity ring down spectroscopy (DSIM-CRDS) and traditional methods
Department of the Interior —
A discrete sample introduction module (DSIM) was developed and interfaced to a cavity ring-down spectrometer to enable measurements of methane and CO2 concentrations... -
Federal
Chemical and isotopic data for thermal and non-thermal features across Yellowstone National Park, v. 2.0
Department of the Interior —
Degassing thermal features at Yellowstone National Park include spectacular geysers, roiling hot springs, bubbling mud pots, fumaroles, frying pans, and areas of... -
Federal
Geochemical Composition of Urban Stormwater Runoff Within the Conterminous United States from Samples Collected in 2016-2017
Department of the Interior —
These analyses provide the basic geochemical composition of urban stormwater runoff from rainwater/stormwater that does or has the potential to infiltrate groundwater... -
Federal
Stable Isotopic Data (δ13C and δ2H) for Reference Materials HCG-1, HCG-2, and HCG-3
Department of the Interior —
Stable carbon and hydrogen isotopic data generated by off-line preparation and dual inlet mass spectrometric analysis used the determine the recommended values for... -
Federal
Arctic Cisco Stable Isotope Data, Prudhoe Bay, August 2009
Department of the Interior —
This data set documents the carbon and nitrogen stable isotope ratios of age-0 Arctic cisco (Coregonus autumnalis) captured in Prudhoe Bay, Alaska in August 2009. -
Federal
Aquatic Stable Isotopes in the Owens River Gorge, CA 2017-2021
Department of the Interior —
This dataset includes stable nitrogen-15 and carbon-13 isotope analysis data derived from freshwater aquatic and semi-aquatic primary producers, invertebrates, and... -
Federal
Changes in Organic Carbon Source and Storage with Sea Level Rise-Induced Transgression in a Chesapeake Bay Marsh
Department of the Interior —
This data set includes a variety of bulk organic carbon, lignin-phenol biomarker, and sedimentation rate data from a set of sites in the Blackwater Marsh in... -
Federal
Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets
Department of the Interior —
This dataset contains stable isotope incorporation and discrimination results for several sets of feeding experiments with captive brown and polar bears. Experiments... -
Federal
Land surface carbon and nitrogen data from the spring sampling trip of 2014 around Chincoteague Bay
Department of the Interior —
Following Hurricane Sandy, scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center conducted a seasonal collection of estuarine,... -
Federal
Carbon and Nitrogen Isotope Concentrations in Polar Bear Hair and Prey from the Alaska Beaufort and Chukchi Seas, 1978-2019
Department of the Interior —
This dataset includes carbon and nitrogen isotope concentrations measured in polar bear hair and marine mammal prey muscle and blubber samples collected 1978-2019 in...
42 datasets found