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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...
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, 2013-2014
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...
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,...