Search Data.gov
Found 324 dataset(s) matching "nitrogen isotopes".
-
238U/206Pb SHRIMP, 40Ar/39Ar geochronologic, and geochemical data from the Central Virginia Piedmont
The Central Virginia Seismic Zone (CVSZ) is an area of historically increased earthquake activity that is of particular importance due to its proximity to many well-populated regions in the...
-
This data release includes laboratory analyses for spider tissue samples collected from 20 sites in riparian areas along streams in the upper Clark Fork Basin in western Montana during July 2023....
-
This dataset contains Isotopic composition (13C and 14C) of sedimentary organic carbon within sediments collected aboard R/V Weatherbird II and R/V Justo Sierra cruises in the southern Gulf of...
-
The storage and persistence of soil organic matter (SOM) is of critical importance to soil health, and to the terrestrial carbon cycle with implications for long-term climate change. To better...
-
This dataset includes carbon-13 (d13C) and nitrogen-15 (d15N) stable isotope analysis from muscle, fin, and eye lens (laminae) tissues from Santa Ana sucker (Pantosteus santaanae) and arroyo chub...
-
These metadata sets present the comprehensive geochemical composition of solid and water samples from the site of a 11.4ML (million liters) wastewater spill discovered in January, 2015. Analyses...
-
Water and gas chemistry data from: Mariner, R.H., Presser, T.S. and Evans, W.C., 1982. Chemical and isotopic composition of water from thermal springs and mineral springs of Washington: U.S....
-
Estuaries provide critical habitat for a vast array of fish and wildlife but are also a nexus for core economic activities that mobilize and concentrate contaminants that can threaten aquatic...
-
These data are nutrient concentrations of seven key forage-plant species in the ranges of three caribou herds, in northern Alaska. During the growing seasons of 2011-2014, we collected forage...
-
Montana Fish, Wildlife, and Parks (MT FWP), in collaboration with the United States Geological Survey (USGS) Wyoming-Montana Water Science Center (WY-MT WSC), Montana Department of Environmental...
-
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 Chesapeake Bay. At each site, a short...
-
The Southern African Regional Science Initiative (SAFARI 2000) was conducted in part to investigate the impacts of the large-scale transport and deposition of increasingly anthropogenic emissions...
-
This dataset contains length, weight, energy density, and isotope values of fish collected in northwest Alaskan rivers during summer and fall 2015-2019.
-
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 turtle. Here we present the...
-
The Permian Basin, straddling New Mexico and Texas, is one of the most productive oil and gas (OG) provinces in the United States. OG production yields large volumes of wastewater that contain...
-
Trophic studies can provide valuable information on the risk an invader poses to native species. Brook Stickleback Culaea inconstans is an invasive fish species in Wyoming whose effect on native...
-
Catfishes are opportunistic feeders that are among the world's worst invasive species. Flathead catfish *Pylodictus olivaris* -- a large predatory catfish -- were first detected in the Susquehanna...
-
Burmese pythons are an invasive species in the Greater Everglades Ecosystem. Burmese pythons captured in the ecosystem are euthanized, and in an effort to learn about this invasive species, all...
-
Sea/air gas ratios data was collected in TOGA Area - Pacific (30 N to 30 S) between January 1, 1989 and December 31, 1989 during cruises conducted using ships WECOMA, KILA and MOANA WAVE as part...
