Found 90 datasets matching filters. (clear all filters)
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These data were compiled to study mercury and selenium concentrations in fish species and assemblages in lotic waterbodies across the Upper Colorado River Basin. Data were compiled from State and...
Search relevance: 1.00 | Views last month: 24 | Catalog Last Checked: May 05, 2026 at 10:17 PM -
Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks, Protected Places, and other federal lands collected as part of...
Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: May 05, 2026 at 09:03 PM -
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.
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: May 05, 2026 at 10:09 PM -
Comma-separated values (.csv) file containing data related to mercury in biota collected from Clear Lake California.
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: May 05, 2026 at 08:27 PM -
This data release includes results of raw water, soil, seston, and fish tissue samples collected from 14 lakes within Lake Clark National Park and Katmai National Park between 2007 and 2017....
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 07:48 PM -
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.
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 09:01 PM -
This dataset includes laboratory analyses of surface water samples and sediment trap material collected from (1) locations upstream, downstream, and within the Hells Canyon Complex (Idaho, Oregon)...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 09:33 PM -
Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 08:50 PM -
This data release includes sampling location data; field-collected stream attribute data; laboratory-analyzed chemistry concentrations (total mercury, methyl mercury) and isotopic composition...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 09:25 PM -
Fish collected for taxonomic and systematic purposes are often preserved and then archived in museum collections. Preserved fish are commonly first fixed in a formalin solution and then...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 08:58 PM -
Primary and secondary consumers are important links in the trophic transfer of methylmercury, and their methylmercury concentrations are often measured to assess the potential risk of toxicity to...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 09:15 PM -
Sediment samples were collected from mercury-contaminated streams and lakes in Texas, Virginia, and Tennessee and were analyzed for total carbon (TC) and total nitrogen (TN). A portion of the...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 09:30 PM -
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...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 09:52 PM -
The Hamilton Wetland Restoration Project (HWRP) is a joint venture between the US Army Corps of Engineers (USACE; San Francisco District) and the California State Coastal Conservancy. The site is...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 08:39 PM -
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...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 09:19 PM -
Comma-separated values (.csv) file containing data related to bat sampling from southwestern U.S. National Parks in 2023. Data file contains mercury concentrations in bat tissues and blood.
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 09:40 PM -
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...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 10:13 PM -
Clear Lake is a 180 km2 freshwater lake located approximately 120 km northwest of Sacramento in the California Coast Range. The lake is a popular sport-fishing destination, however, there are fish...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 09:24 PM -
Mercury (Hg) is a well-known toxic element and environmental contaminant. The central valley of California has long been identified as a hotspot for Hg contamination due to the historic mining of...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 07:31 PM -
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...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: May 05, 2026 at 08:43 PM
