Filters: Tags: Bioaccumulation (X) > partyWithName: Josh T Ackerman (X)

Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Sarah H Peterson U.S. Geological Survey - ScienceBase Western Ecological Research Center Shanna L Miller U.S. Geological Survey More... Categories Data (4) Tag Types Theme (4) USGS Scientific Topic Keyword (3) Place (3) Harvest Set (4) Tag Schemes USGS Thesaurus (3) None (2) ISO 19115 Topic Category (3) Marine Realms Information Bank (MRIB) keywords (2) usgs thesaurus (1) Common geographic areas (1) Coastal and Marine Ecological Classification Standard (2) More... View Results as: JSON ATOM CSV

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 Wetland Management Strategy to Reduce Mercury Export in Water and Bioaccumulation in Fish Total mercury concentrations in western mosquitofish (Gambusia affinis) that were caged at specific locations within four control wetlands and four treatment wetlands for a 30-day exposure time period to test the effectiveness of wetland management strategy to reduce mercury contamination. Fish data only. Water data published in a separate data release by co-authors. These data support the following publication: Ackerman, J.T., Fleck, J.A., Eagles‐Smith, C.A., Marvin‐DiPasquale, M., Windham‐Myers, L., Herzog, M.P. and McQuillen, H.L., 2019. Wetland Management Strategy to Reduce Mercury in Water and Bioaccumulation in Fish. Environmental toxicology and chemistry. https://doi.org/10.1002/etc.4535 Categories: Data; Tags: Cosumnes River Preserve, USGS Science Data Catalog (SDC), bioaccumulation, fish, mercury, All tags... methlmercury, Fewer tags Geochemical data for water, sediment, and biota in Lake Combie, California, 2017-2021 This dataset includes field measurements and laboratory analyses of surface water, bottom water (sediment-water interface), surficial (0-2 cm) sediment, pore water (0-2 cm), and biota collected in Lake Combie, California, from September 2017 through August 2021. The study area includes six sites within the reservoir where discrete samples of surface water, bottom water, sediment, and pore water were taken along the length of the reservoir at the following distances from the spillway: 0.07 miles, 0.5 miles, 0.9 miles, 1.2 miles, 1.3 miles, and 1.4 miles. The within-reservoir sites were sampled during September 2017, February 2018, and May 2018, prior to a large sediment removal operation, and again during September... Categories: Data; Tags: California, Geochemistry, Hydrology, Lake Combie, Limnology, All tags... USGS Science Data Catalog (SDC), Upper Bear, Water Quality, Zooplankton, bioaccumulation, biota, chemical analysis, dissolved metals, environment, field sampling, fish, geoscientificInformation, inlandWaters, mercury, mercury analysis, mercury contamination, methyl mercury, methylmercury, optical methods, reservoir, sediment analysis, suspended material (water), water chemistry, water properties, water quality, Fewer tags Hair and blood total mercury concentrations in raccoons and striped skunks from Suisun Marsh 2016 to 2019 Total mercury concentrations were determined in hair and whole blood of raccoons and skunks in Suisun Marsh from 2016 to 2019. Individual skunks and raccoons were identified by a unique identifier (Animal_ID) and some animals were sampled multiple times. This dataset includes animal sex, age class, the date the sample was collected, animal body mass, head length, and head-to-torso length. These data support the following publication: Peterson, Sarah H., Ackerman, J.T., Hartman, C.A., Casazza, M.L., Feldheim, C.L., and Herzog, M.P. 2020. Mercury exposure in mammalian mesopredators inhabiting a brackish marsh. Environmental Pollution Categories: Data; Tags: California, THg, USGS Science Data Catalog (SDC), Wildlife Biology, bioaccumulation, All tags... biota, blood, capturing (animals), fur, hair, mammals, mercury contamination, wildlife, Fewer tags