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Air Quality Investigations - Biological Sampling Data
Twenty-two high elevation lakes (>3000m) in Rocky Mountain National Park and Indian Peaks Wilderness Area, Colorado, were surveyed in 1981, 1996, and 1998-2001 to explore... -
Physical and chemical data from an evaluation of metal-contaminated sediments...
This data release contains chemistry and toxicity data from sediment toxicity tests conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples... -
Benthos Sample Data from Izembek and Nelson Lagoons, Alaska, 1998
This data set contains a single table of descriptions of benthic samples collected in 1998 at Nelson and Izembek lagoons, Alaska. This includes: the weight of the sample, the... -
Sediment bioassay toxicity data from the Upper Columbia River, Washington, 20...
This data release contains bioassay data from sediment toxicity tests conducted by the USGS Columbia Environmental Research Center (CERC) with 66 sediment samples collected from... -
APIS 2017 survey dataset concerning Dreissena veligers and supporting environ...
An excel file where each row is a sample station and columns provide station descriptors, number and density of Dreissena veligers in the zooplankton samples, substrate type,...