Filters: Tags: light stable isotope analysis (X) > Types: Map Service (X)

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Stable isotopic ratios of hydrogen and oxygen in groundwater and calculated fraction of recharge from winter precipitation, South Rim Grand Canyon, Arizona Dataset provides inputs and model results of a stable isotope-based mixing model for estimating the relative contribution of seasonal recharge sources to the South Rim groundwater flow system, Grand Canyon, Arizona, USA. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arizona, Coconino, Geochemistry, Grand Canyon, Hydrology, All tags... North America, USGS Science Data Catalog (SDC), Water Resources, atmospheric sciences, biota, climatologyMeteorologyAtmosphere, earth sciences, environment, geoscientificInformation, geospatial dataset, groundwater, groundwater flow, hydrogeology, hydrology, light stable isotope analysis, mathematical modeling, precipitation (atmospheric), recharge, runoff, scientific interpretation, water chemistry, water cycle, Fewer tags Greater Everglades Burmese python stable isotope data, 2003-2012, and standard ellipse area literature review, 2018 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 euthanized pythons are necropsied, during which time samples are collected. We analyzed the stable isotope ratios of carbon and nitrogen in muscle samples from 423 Burmese pythons euthanized and necropsied between 2003-05-01 and 2012-09-02, and after processing and QA/QC, we were left with isotope ratios for 410 samples, which we reported here. We used these data to estimate the size of the isotopic niche of the Burmese python, commonly measured using standard ellipse areas, or SEAs. To put these SEAs in context, we conducted... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Ecology, Everglades, Florida, Florida Bay-Florida Keys, Southern Florida, All tags... USGS Science Data Catalog (SDC), Wildlife Biology, biota, invasive species, light stable isotope analysis, Fewer tags Understanding How Climate Change Will Impact Aquatic Food Webs in the Great Lakes This project addressed regional climate change effects on aquatic food webs in the Great Lakes. We sought insights by examining Lake Erie as a representative system with a high level of anthropogenic impacts, strong nutrient gradients, seasonal hypoxia, and spatial overlap of cold- and cool-water fish guilds. In Lake Erie and in large embayments throughout the Great Lakes basin, this situation is a concern for fishery managers, as climate change may exacerbate hypoxia and reduce habitat volume for some species. We examined fish community composition, fine-scale distribution, prey availability, diets, and biochemical tracers for dominant fishes from study areas with medium-high nutrient levels (mesotrophic, Fairport... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, CASC, Climate Change, Completed, FY 2012, All tags... Fish, Fish, Great Lakes, Hydroacoustics, Lake Erie, Northeast, Northeast CASC, Northeast Climate Science Center, Projects by Region, Rivers, Streams and Lakes, Rivers, Streams and Lakes, Water, Coasts and Ice, Water, Coasts and Ice, Wildlife and Plants, Wildlife and Plants, climate change impacts, emerald shiner, fish populations, food web dynamics, hypoxia, light stable isotope analysis, rainbow smelt, round goby, white perch, yellow perch, Fewer tags St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or archived by, or in collaboration with, the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). The SPCMSC Geologic Core and Sample Database includes geologic cores and samples collected beginning in the 1970s to present day, from study sites across the world. This database can be accessed through the CoreViewer 3.0 ArcOnline web mapping application, linked below. A copy of the data can also be downloaded from the web mapping application and the metadata is accessible through a link in the header of the application, as... Types: Application, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Atlantic Ocean, Bahamas, Belize, Brazil, All tags... CTD measurement, Caribbean Sea, China, Florida, Georgia, Gulf of Mexico, Honduras, Louisiana, Marshall Islands, Maryland, Mexico, Mississippi, Navassa Island, New Jersey, New Mexico, New York, Pacific Ocean, Philippines, Puerto Rico, Texas, Turks and Caicos Islands, U.S. Virgin Islands, United States, Virginia, Washington, age estimation methods, atomic emission spectroscopy, augering, biota, box coring, bulk density, carbon isotope analysis, carbon-14 analysis, chemical analysis, contamination and pollution, coral, core analysis, cores, drilling and coring, environment, faunal and floral census (microscopic), field sampling, geolocation measurement, geology, geoscientificInformation, grab sampling, grain-size analysis, information technology methods, isotopic analysis, laboratory methods, light stable isotope analysis, luminescence dating, magnetic susceptibility, marine geology, mass spectroscopy, oceans, paleomagnetic analysis, permeability, photography, piston coring, porosity, protists, push coring, radiometric dating, rock, rotary drilling, salinity, sample repositories, samples, sea surface temperature, sediment, soil sciences, stratigraphy, subsampling, tomography, vibracoring, water chemistry, water quality, x-ray diffraction, x-ray fluorescence, Fewer tags Understanding How Climate Change will Impact Aquatic Food Webs in the Great Lakes This project addressed regional climate change effects on aquatic food webs in the Great Lakes. We sought insights by examining Lake Erie as a representative system with a high level of anthropogenic impacts, strong nutrient gradients, seasonal hypoxia, and spatial overlap of cold- and cool-water fish guilds. In Lake Erie and in large embayments throughout the Great Lakes basin, this situation is a concern for fishery managers, as climate change may exacerbate hypoxia and reduce habitat volume for some species. We examined fish community composition, fine-scale distribution, prey availability, diets, and biochemical tracers for dominant fishes from study areas with medium-high nutrient levels (mesotrophic, Fairport... Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, Academics & scientific researchers, CSC, Climate Change, Conservation NGOs, All tags... Consevation design, Data Acquisition and Development, Data Management and Integration, Datasets/Database, EARTH SCIENCE > LAND SURFACE > LANDSCAPE, FY 2012, Federal resource managers, Fish, Great Lakes, Hydroacoustics, LCC Network Science Catalog, Lake Erie, Northeast CSC, Northeast Climate Science Center, Policy makers & regulators, Project, Publication, Rivers, Streams and Lakes, State agencies, Tribes, Water and Ice, Wildlife and Plants, climate change impacts, completed, emerald shiner, environment, environment, fish populations, food web dynamics, hypoxia, light stable isotope analysis, rainbow smelt, round goby, white perch, yellow perch, Fewer tags Geochemical and Geochronological Data for Hydrothermal Systems on Brokeoff Volcano and in the Maidu Volcanic Center, Lassen Peak area, northeastern California This dataset contains 8 data tables provided in csv format that contain sample location data, whole-rock geochemical data, argon-argon geochronologic data, sulfur, oxygen, and hydrogen isotope data, and mineralogical data from shortwave infrared spectrography (SWIR) and X-ray diffraction (XRD) analyses collected from igneous rocks on Brokeoff and Maidu volcanoes, northeastern California, USA. The data table files are Sample_Location_Data.csv, Argon_Data.csv, Geochemistry_Data.csv, SWIR_Data.csv, Whole_Rock_XRD.csv, Clay_XRD.csv, Sulfur_Isotope.csv, and Oxygen_Hydrogen_Data.csv. Fields in the data tables are defined in 8 corresponding data dictionaries, Sample_Location_Data_Dictionary.csv, Argon_Data_Dictionary.csv,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Brokeoff Mountain, Bumpass Hell, Geochemistry, Geochemistry, Geochronology, All tags... Lassen Peak, Light stable isotope analysis, Mineral, Mineralogy, Sulphur Works, USGS Science Data Catalog (SDC), Volcanology, X-ray diffraction, Fewer tags