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Maternal Transfer of Mercury to Northern Elephant Seal Pups We used free-ranging northern elephant seals as a model species to investigate maternal transfer of mercury (Hg) to pups in relation to maternal traits, including maternal blood mercury concentrations, and to quantify the links between pup lanugo mercury concentrations and maternal mesopelagic foraging behavior during gestation. We satellite tracked known-age adult females at sea during their seven-month-long foraging trip to determine maternal foraging strategies (geographic locations and diving depths) and quantified mercury concentrations in maternal blood and their pups’ blood and lanugo (which is defined as pup hair grown in utero) early in lactation when seals were hauled out. We then tested how the maternal... Categories: Data; Tags: Ecology, Environmental Health, Marine Oceanic Mesopelagic Layer, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... bioaccumulation, biota, contaminant transport, ecology, ecotoxicology, mercury, mercury contamination, seals, sea lions and walruses, Fewer tags Mercury Contamination of Red-legged Kittiwakes in the Western Subarctic Pacific Ocean This dataset contains mercury concentrations and locations of wintering red-legged kittiwakes in the western subartic Pacific Ocean. These data support the following publication: Fleishman, AB, RA Orben, N Kokubun, A Will, R Paredes, JT Ackerman, A Takahashi, AS Kitaysky, and SA Shaffer. 2019. Wintering in the Western Subarctic Pacific increases mercury contamination of red-legged kittiwakes. Environmental Science and Technology, in press. Categories: Data; Tags: Pacific Ocean, USGS Science Data Catalog (SDC), Wildlife Biology, biogeography, biota, All tags... birds, contaminant exposure, distribution, hierarchical clustering, isotopic analysis, marine isoscape, mercury contamination, mesopelagic predator, migration (organisms), non-breading, seabird, seabird sentinels, stable isotopes, western subartic, Fewer tags Mercury Stable Isotope Assessment of Global Food Webs This dataset describes mercury (Hg) stable isotope values in fish dorsal muscle from different freshwater environments across the globe. Fish were collected at numerous field sites in North America, South and Central America, Africa, and Asia from 2006-2020. Sub-samples were provided by cooperators to the U.S. Geological Survey Mercury Research Laboratory and the University of Wisconsin for mercury stable isotope analysis. Samples were analyzed for mercury stable isotopes from 2017-2021. These specimens represent multiple trophic levels and body sizes from different food webs and when adequate mass was available, multiple species from the same food web were examined. Cooperators include, but are not limited to:... Categories: Data; Tags: Aquatic Biology, Botswana, Congo, Environmental Health, Gabon, All tags... Geochemistry, Ghana, Guatemala, Honduras, Kenya, Mongolia, Panama, Suriname, Tanzania, Thailand, USGS Science Data Catalog (SDC), United States, Venezuela, food web, isotopic analysis, mercury contamination, Fewer tags Assessment of Mercury and Mercury Stable Isotopes in Sediments and Biota from Reservoirs and Remedial Zones within the Saint Louis River, Minnesota This data release includes mercury concentrations and mercury stable isotope measurements measured in sediments and biological tissues collected from the Saint Louis River located in Minnesota. Sediments and biota were collected by the U.S. Geological Survey, U.S. Environmental Protection Agency, U.S. Army Corps of Engineers, and federal contractors (Battelle) from 2017-2021. Collection regions included nearshore zones within the main estuary, remedial sites within the lower river, and upstream reservoir sites. Sediments were analyzed for total mercury, methylmercury, and mercury stable isotopes by the U.S. Geological Survey Mercury Research Laboratory (MRL, Madison, Wisconsin). Biological samples were analyzed... Categories: Data; Tags: Environmental Health, Geochemistry, Saint Louis River, Minnesota, USGS Science Data Catalog (SDC), biota, All tags... food web, isotopic analysis, mercury contamination, Fewer tags Total mercury concentrations in dragonfly larvae from U.S. national parks (ver. 9.0, November 2023) Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks collected as part of the Dragonfly Mercury Project (DMP). This data release supersedes Eagles-Smith, C.A., Nelson, S.J., Flanagan-Pritz, C.M., Willacker Jr., J.J., and Klemmer, A.J., 2018, Total mercury concentrations in dragonfly larvae from U.S. national parks (ver. 8.0, December 2022): U.S. Geological Survey data release, https://doi.org/10.5066/P9TK6NPT. Please contact fresc_outreach@usgs.gov for access. Categories: Data, Data Release - Revised; Tags: Acadia National Park, Allegheny Portage Railroad National Historic Site, Amistad National Recreation Area, Apostle Islands National Lakeshore, Appomattox Court House National Historical Park, All tags... Aquatic Biology, Assateague Island National Seashore, Battle Creek Cypress Swamp, Bear Creek Lake Park, Bear Meadows Natural Area, Big Bend National Park, Big Cypress National Preserve, Big Thicket National Preserve, Buffalo National River, Cape Cod National Seashore, Capitol Reef National Park, Carl Sandburg Home National Historic Site, Carlsbad Caverns National Park, Channel Islands National Park, Chattahoochee River National Recreation Area, Chickasaw National Recreation Area, City of Rocks National Reserve, Colorado National Monument, Congaree National Park, Crater Lake National Park, Craters of the Moon National Monument & Preserve, Cuyahoga Valley National Park, Death Valley National Park, Delaware Water Gap National Recreation Area, Denali National Park and Preserve, Devils Tower National Monument, East Inlet Natural Area-Connecticut Lakes Nature Preserve, Ecology, Ell Pond Preserve, Everglades National Park, Fort Larned National Historic Site, Fort Worth Nature Center and Refuge National Natural Landmark, Gateway National Recreation Area, Glacier Bay National Park & Preserve, Glacier National Park, Glen Canyon National Recreation Area, Golden Gate National Recreation Area, Grand Canyon National Park, Grand Portage National Monument, Grand Teton National Park, Great Basin National Park, Great Sand Dunes National Park, Great Smoky Mountains National Park, Gulf Islands National Seashore, Hawaii Volcanoes National Park, Homestead National Monument, Horseshoe Bend National Military Park, Hot Springs National Park, Indiana Dunes National Park, Isle Royale National Park, Jean Lafitte National Historical Park and Preserve, John Day Fossil Beds National Monument, Joshua Tree National Park, Katahdin Woods and Waters National Monument, Katmai National Park and Preserve, Kenai Fjords National Park, Kenilworth Park & Aquatic Gardens, Klondike Gold Rush National Historical Park, Knife River Indian Villages National Historic Site, Lake Clark National Park and Preserve, Lassen Volcanic National Park, Lewis and Clark National Historical Park, Lilley Cornett Woods, Mammoth Cave National Park, Marsh-Billings-Rockefeller National Park, Maurice National Wild and Scenic River, Minute Man National Historical Park, Mississippi National River & Recreation Area, Monocacy National Battlefield, Montezuma Castle National Monument, Mount Rainier National Park, Natchez Trace Parkway and National Scenic Trail, New River Gorge National Park and Preserve, Niobrara National Scenic River, North Cascades National Park, Ocmulgee Mounds National Historical Park, Olympic National Park, Oregon Caves National Monument, Ozark National Scenic Riverway, Padre Island National Seashore, Petersburg National Battlefield, Pictured Rocks National Lakeshore, Pinnacles National Park, Pipestone National Monument, Prince William Forest Park, Pu'ukohola Heiau National Historic Site, Redwood National Park, Richmond National Battlefield Park, Rio Grande Wild & Scenic River, Rock Creek Park, Rocky Mountain National Park, Roosevelt-Vanderbilt National Historic Sites, Saguaro National Park, Saint Croix National Scenic Riverway, Saint-Gaudens National Historic Site, San Juan Island National Historical Park, Santa Monica Mountains National Recreation Area, Sequoia & Kings Canyon National Parks, Shenandoah National Park, Sleeping Bear Dunes National Lakeshore, Sudbury, Assabet & Concord Wild & Scenic Rivers, Tallgrass Prairie National Preserve, Timucuan Ecological Historic Preserve, Tumacacori National Historical Park, Tuzigoot National Monument, USGS Science Data Catalog (SDC), Upper Delaware Scenic and Recreational River, Valles Caldera National Preserve, Voyageurs National Park, Water Quality, Weir Farm National Historical Park, Wekiva Wild & Scenic River, White Mountain National Forest, Wildlife Biology, Wind Cave National Park, Women’s Rights National Historical Park, Yellowstone National Park, Yosemite National Park, Zion National Park, biota, environment, mercury contamination, Fewer tags Mercury concentrations in surface water, sediment, and biota in the Laurentian Great Lakes, 2005 through Present Under the Great Lakes Restoration Initiative, the U.S. Geological Survey Mercury Research Lab (USGS MRL) conducted a multiyear assessment of mercury across the Laurentian Great Lakes. Biannual sampling was conducted across all five lakes onboard the U.S. Environmental Protection Agency (US EPA) research vessel Lake Guardian (in years 2010–2014, 2018) at pelagic sampling locations established by the long-term US EPA Great Lakes monitoring program. In addition to the regularly scheduled biannual sampling, in September 2013 and 2014 Lake Michigan and Lake Erie (respectively) were sampled with increased focus on shallow nearshore locations. Throughout these sampling efforts, sediments, mussels, surface water, and plankton... Categories: Data; Tags: Aquatic Biology, Ecology, Environmental Health, Geochemistry, Great Lakes, All tags... Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Superior, Limnology, USGS Science Data Catalog (SDC), Water Quality, aquatic biology, atmospheric sciences, biochemistry, ecology, industrial pollution, light stable isotope analysis, limnology, liquid chromatography, mass spectroscopy, mercury contamination, nonpoint-source pollution, surface water quality, water chemistry, Fewer tags Mercury concentrations in amphibian tissues across the United States, 2016-2021 Comma-separated values (.csv) file containing data related to amphibian sampling across the United States between 2016 and 2021. Data files contain mercury concentrations in amphibian and dragonfly tissues, mercury concentrations in sediment, as well as amphibian morphometrics, and habitat and climate characteristics where the samples were collected. Categories: Data; Tags: Aquatic Biology, California, Colorado, Connecticut, Ecology, All tags... Environmental Health, Louisiana, Maine, Manitoba, Massachusetts, Montana, Oregon, Pennsylvania, USGS Science Data Catalog (SDC), Vermont, Virginia, Water Quality, Wildlife Biology, Wisconsin, Wyoming, biota, environment, inlandWaters, mercury contamination, Fewer tags Total Mercury Concentrations in Fish Muscle from the Colorado River and Bright Angel Creek, AZ, USA (2015) Mercury is a globally distributed pollutant that threatens human and ecosystem health. Even protected areas, such as national parks, are subjected to mercury contamination because it is delivered via atmospheric deposition, often after long-range transport. In aquatic ecosystems, certain environmental conditions can promote microbial processes that convert inorganic mercury to an organic form (methylmercury). Methylmercury biomagnifies through food webs and is a potent neurotoxicant and endocrine disruptor. This dataset contains data on the length, mass, and muscle total mercury concentration of Brown Trout (Salmo trutta) and Rainbow Trout (Oncorhynchus mykiss) collected from the Colorado River in Glen Canyon National... Categories: Data; Types: Citation; Tags: Arizona, Bright Angel Creek, Colorado River, Glen Canyon National Recreation Area, Grand Canyon National Park, All tags... USGS Science Data Catalog (SDC), mercury contamination, Fewer tags Mercury concentrations, isotopic composition, biomass, and taxonomy of stream and riparian organisms in the vicinity of Yellow Pine, Idaho, 2015-2016 This data release includes sampling location data; field-collected stream attribute data; laboratory-analyzed chemistry concentrations (total mercury, methyl mercury) and isotopic composition (total mercury, carbon, and nitrogen) for stream biota (seston, periphyton, benthic insects, emerging adult insects, riparian spiders, and fish); density, body length, and taxonomic information for benthic insects; and density, biomass, and taxonomic information for emerging adult aquatic insects for biota sampled from stream reaches up and downstream of an historical mercury mine site. Sampling took place during summer low-flow conditions in 2015 and 2016. Stream reaches were located on USFS land near the Cinnabar Mine Site... Tags: Aquatic Biology, Environmental Health, Idaho, Nez Perce Tribe, USGS Science Data Catalog (SDC), All tags... Yellow Pine, aquatic insects, aquatic-terrestrial linkages, biomagnification, biota, food web, macroinvertebrates, mercury contamination, mine drainage, riparian ecosystems, riparian spiders, spiders, sugar creek, Fewer tags Mercury and Methylmercury Stable Isotope Measurements in Giant Petrels Methylmercury (MeHg) and total mercury (HgT) stable isotope measurements were made by the USGS Mercury Research Lab (MRL) in different organs on the Giant Petrels (Macronectes spp.) to examine internal mercury cycling in these seabirds. These data were collected as a compliment to x-ray spectroscopy measurements made by the University of Grenoble, France. The tissues and feathers of the southern giant petrels exhibit large variability in mercury-202 isotope values (δ202HgT), which are typically used to ascertain Hg sources in the environment. These values follow a pattern across all individuals based on tissue type: feathers (δ202HgT = 2.74 ± 0.16‰, n =5, mean ± standard deviation) > brain (δ202HgT = 1.09 ± 0.77‰,... Categories: Data; Tags: Antarctica, Ecology, Geochemistry, Kerguelen Islands, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biochemistry, food web, isotopic analysis, mercury contamination, Fewer tags Mercury and selenium concentrations in bird eggs at Great Salt Lake, Utah These metadata provide data used to examine mercury and selenium concentrations in eggs of birds breeding in wetlands of the Great Salt Lake ecosystem, Utah, particularly at Bear River Migratory Bird Refuge. Eggs were salvaged during 2010 - 2012 and include 33 species of birds. These data support the following publication: Ackerman, J.T., Herzog, M.P., Hartman, C.A., Isanhart, J., Herring, G., Vaughn, S., Cavitt, J.F., Eagles-Smith, C.A., Browers, H., Cline, C., and Vest, J., 2015, Mercury and selenium contamination in waterbird eggs and risk to avian reproduction at Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2015-1020, 164 p., https://doi.org/10.3133/ofr20151020. Categories: Data; Tags: Great Salt Lake, USGS Science Data Catalog (SDC), Wildlife Biology, biota, bird, All tags... mercury contamination, Fewer tags Feather mercury concentrations in North American raptors sampled at migration monitoring stations We assessed total mercury concentrations in breast feathers of diurnal North American raptors collected at migration monitoring stations. We sampled raptor feathers from 9 species in the Pacific Flyway and compared species, sex, date, and flyway effects on mercury concentrations. We also explored year effects on 3 species of raptors in the Pacific Flyway during 13-years (2002-2014). Finally, we compared mercury concentrations in merlin among 4 continental flyways. These data support the following publication: Bourbour, R.P., Martinico, B.L., Ackerman, J.T., Herzog, M.P., Hull, A.C., Fish, A.M. and Hull, J.M., 2019. Feather mercury concentrations in North American raptors sampled at migration monitoring stations.... Categories: Data; Tags: Atlantic Flyway, Intermountain Flyway, Mississippi Flyway, Pacific Flyway, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, mercury contamination, migratory species, wildlife, Fewer tags Survival, growth, behavior and mercury concentrations of mayflies exposed to elevated dietary methylmercury and aqueous selenium Survival and size of mayflies at each life stage, as well as MeHg concentrations in diatoms and mayflies exposed to low and high MeHg concentrations and a range of selenomethione (SeMet) concentrations. Tags: Aquatic Biology, Columbia Environmental Research Center, Environmental Health, Mayfly, Methylmercury, All tags... USGS Science Data Catalog (SDC), bioaccumulation, biota, diatoms, ecotoxicology, mercury contamination, selenium, Fewer tags Avian Eggshell Thickness for 12 Species in the Western U.S. from 2014 to 2018 Eggshell thickness was measured at the egg equator and poles (sharp pole and blunt pole) for 12 avian species. Eggshell thickness was related to egg morphometrics (egg length and width), embryonic development, egg status, and mercury contamination. Individual eggshells each have up to 3 thickness measurements, linked by the eggshell identification. Each measurement has the corresponding egg length, egg width, egg status, mercury concentration, and nest identification. Additionally, eggshell thickness was measured at 5 equally spaced positions along the longitude of the egg (sharp pole, quarter egg, half egg, three quarter egg, and blunt pole) in a subset of Forster's tern (Sterna forsteri) eggs. These data support... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Nevada, USGS Science Data Catalog (SDC), Washington, biota, All tags... birds, egg measurements, eggshell, laboratory methods, mercury contamination, Fewer tags Mercury and biogeochemical parameters in surface water and sediment from U.S. National Parks, 2014-2015 (ver. 2.0, December 2023) Comma-separated values (.csv) file containing data related to mercury and biogeochemical parameters in surface water and aquatic sediment collected from U.S. National Parks in 2014-2015. Categories: Data, Data Release - Revised; Tags: Acadia National Park, Big Bend National Park, Big Cypress National Park, Big Thicket National Preserve, Cape Cod National Seashore, All tags... Chickasaw National Recreation Area, Cuyahoga Valley National Park, Denali National Park and Preserve, Glacier National Park, Great Smoky Mountains National Park, Gulf Islands National Seashore, Indiana Dunes National Park, John Day Fossil Beds National Monument, Knife River Indian Villages National Historic Site, Lake Clark National Park and Preserve, Mammoth Cave National Park, Marsh-Billings-Rockefeller National Park, Montezuma Castle National Monument, Mount Rainier National Park, Niobrara National Scenic River, Olympic National Park, Ozark National Scenic Riverway, Pictured Rocks National Lakeshore, Pipestone National Monument, Redwood National Park, Rocky Mountain National Park, Roosevelt-Vanderbilt National Historic Sites, Saguaro National Park, Saint-Gaudens National Historic Site, Shenandoah National Park, Tallgrass Prairie National Preserve, Timucuan Ecological & Historic Preserve, Tumacacori National Historical Park, Tuzigoot National Monument, USGS Science Data Catalog (SDC), USGS:637e5e47d34ed907bf769345, Valles Caldera National Preserve, Voyageurs National Park, Yellowstone National Park, Yosemite National Park, environment, inlandWaters, mercury contamination, Fewer tags Mercury contamination in Anna’s hummingbirds Heavy metal contamination (n=17 metals) of feather and tissue samples from live and deceased Anna's hummingbirds (Calypte anna) was evaluated. Feathers taken from live birds are low in sample weight, therefore a novel method was used in feather sample preparation. Feather samples were then analyzed utilizing an inductively coupled plasma mass spectrometry (ICP-MS) assay. In addition, ICP-MS was used to measure heavy metal concentrations in feather and tissue samples from salvaged hummingbird carcasses. Iron, zinc, selenium and mercury concentrations were most commonly elevated in body feathers from live birds with mercury being the metal most likely to be found in elevated concentrations. Because of this, we conducted... Categories: Data; Tags: Anna’s hummingbird, Calypte anna, Mercury contamination, Northern California, Sierra Nevada foothills, All tags... USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags Mercury Concentrations and Stable Isotopes in Riparian Songbirds and Invertebrates from the Willamette River, Oregon, 2013 This dataset includes bird species, invertebrate order and family, sample identification codes, collection date, latitude, longitude, site name, bird age, invertebrate life stage, invertebrate trophic group, carbon and nitrogen stable isotopes in birds and invertebrates, total mercury concentrations in bird blood, and methylmercury concentrations in composite invertebrates. Categories: Data; Tags: Aquatic Biology, Ecology, Environmental Health, Oregon, USGS Science Data Catalog (SDC), All tags... Water Resources, Wildlife Biology, Willamette River, biota, environment, mercury contamination, Fewer tags Biomass and methylmercury concentrations in biweekly biological samples from Brownlee and Oxbow Reservoir outflows, Snake River Hells Canyon Complex (Idaho-Oregon), 2018-2019 This dataset describes biomass and methylmercury concentrations in zooplankton, other invertebrates, fish, and coarse and fine detritus samples collected at the outflow locations of Brownlee and Oxbow Reservoirs in the Snake River Hells Canyon Complex. Based on the sampling locations, the sampled materials were presumed to have flowed through the dam turbines or over the spillway, thereby representing biological export from the reservoirs. Samples were collected biweekly at each location over a sixteen-month period, June 2018 – September 2019. Sampling and analysis methods are described in the Processing Steps section of the metadata. Categories: Data; Tags: Aquatic Biology, Ecology, Environmental Health, Hells Canyon, Ictaluridae, All tags... Idaho, Lepomis macrochirus, Micropterus dolomieu, Oregon, Perca flavescens, Pomoxis, Snake River, USGS Science Data Catalog (SDC), Water Quality, Water Resources, bioaccumulation, biota, contamination and pollution, ecotoxicology, environment, field sampling, fish, inlandWaters, invertebrates, mercury contamination, methylmercury, plankton, toxic trace element contamination, Fewer tags Incubation Constancy, Number of Incubation Recesses, Recess Duration and Mercury Concentrations for Tree Swallows at the Cosumnes River Preserve 2014 These metadata provide data used to examine tree swallow incubation behavior in relation to egg mercury concentration and maternal blood mercury concentration. These data were collected from tree swallows nesting in artificial wooden nest boxes at the Cosumnes River Preserved in California's Central Valley in 2014. Included are two datasets. One dataset provides daily incubation constancy (the proportion of the day the female spent incubating her eggs), the number of incubation recesses (breaks from incubating) taken by the attending female each day and the total mercury concentration of one egg from the female's clutch, and blood total mercury concentrations collected from the mother. Additionally, we include other... Categories: Data; Tags: Cosumnes River Preserve, Tachycineta bicolor, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, All tags... biota, incubation behavior, incubation constancy, mercury contamination, tree swallow, Fewer tags Mercury stable isotopes in biota, sediment, groundwater, and waste piles, Clear Lake area, Lake County, California, 2019-2022 Samples were collected from Clear Lake, California from 2019-2022 by the U.S. Geological Survey (USGS) California Water Science Center, the USGS Forest and Rangeland Ecosystem Science Center (FRESC), the US Environmental Protection Agency, and EA Engineering Science and Technology Inc. to assess the extent and cycling of legacy mercury (Hg) contamination from Sulphur Bank Mine. Samples of waste rock, sediments, groundwater, and biological tissue (zooplankton, bluegill, smallmouth bass, Mississippi silversides, and largemouth bass) were analyzed for Hg stable isotopes by the U.S. Geological Survey Mercury Research Laboratory. Mercury concentrations for sediments, waste rocks, and groundwaters are included within... Categories: Data; Tags: California, Clear Lake, California, Environmental Health, Lake County, California, USGS Science Data Catalog (SDC), All tags... fish, groundwater, isotopic analysis, mercury contamination, mine waste, sediment, Fewer tags 1 2 »