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Filter Total Items: 56
Date published: October 9, 2019

Microplastics in Lake Mead National Recreation Area, 2017-2018: U.S. Geological Survey data release

This dataset describes the quantity and morphology of microplastics in water, surficial sediment, sediment core, fish, and shellfish samples from Lake Mead National Recreation Area (Nevada/Arizona). Water and surficial sediment samples were collected once at 9 locations. A sediment core (33 cm long) was extracted from Las Vegas Bay to assess changes in microplastic deposition over time....

Date published: October 1, 2019

Metal-mixtures experimental stream study, part 2 (2014): Cd, Cu, and Zn exposures: aquatic, biofilm, tissue and sediment chemistry and larval aquatic insect counts

This dataset is from the second of four experiments which test the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams. Here we report original data from testing the toxicity of cadmium (Cd), zinc (Zn), and copper (Cu) singly and in mixtures, to natural aquatic insect communities. Thus, the...

Date published: September 30, 2019

Microplastics in the water column and sediment in Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan, 2016

This dataset describes the quantity, morphology, and polymer identity of microplastics in the water column and surficial sediments of Milwaukee-Area streams, the Milwaukee Harbor, and Lake Michigan (Wisconsin). Water samples were collected at 10 locations, 2-4 times each, from May to September, 2016. At the 4 shallowest locations, water was collected only at the water surface. At the remaining...

Date published: September 1, 2019

Metal-mixtures experimental stream study 1 (2013): Cd and Zn exposures: aquatic chemistry and larval counts

This dataset is from the first of four experiments which test the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams. Here we report original data from an experiment testing the toxicity of cadmium (Cd) and zinc (Zn), singly and in mixtures, to natural aquatic insect communities. Trays of cleaned...

Date published: January 1, 2019

SiteID-010 Perkiomen Creek at SR-1024, near Perkiomenville, PA

These geospatial data were collected during the November 15, 2016 topographic and hydrographic survey of Perkiomen Creek at SR-1024, near Perkiomenville, PA.

Date published: January 1, 2019

Bathymetry of Blackfoot Reservoir, Caribou County, Idaho, 2011

The USGS, in cooperation with the Shoshone-Bannock Tribes, surveyed the bathymetry of Blackfoot Reservoir in 2011 to determine temporal changes due to sedimentation and other factors, and to improve the overall accuracy of the stage-capacity table. Bathymetric surveys of high accuracy and resolution are possible through advances in instrumentation, notably a multibeam echosounder (MBES). An...

Date published: January 1, 2019

SiteID-016 Blackfoot River at I-90, at Bonner, MT

These geospatial data were collected during the June 30, 2016 topographic and hydrographic survey of the Blackfoot River at I-90 near Bonner, MT.

Date published: January 1, 2019

SiteID-034 Saddle River at NJ17 at Ridgewood, NJ

These geospatial data were collected during the May 24, 2017 topographic and hydrographic survey of Saddle River in the vicinity of New Jersey State Route 17 at Ridgewood, NJ.

Date published: January 1, 2019

SiteID-032 Old Man's Creek, at Iowa State Route 1 near Iowa City, IA

These geospatial data were collected during the August 31, 2016 topographic and hydrographic survey of Old Man's Creek in the vicinity of Iowa State Route 1 near Iowa City, IA.

Date published: January 1, 2019

SiteID-005 Snake River at Ferry Butte Road, near Blackfoot, ID

These geospatial data were collected during the May 30-31, 2017 topographic and hydrographic survey of the Snake River at Ferry Butte Road near Blackfoot, ID.

Date published: January 1, 2019

SiteID-021 Madison River at I-90, near Three Forks, MT

These geospatial data were collected during the July 14-26, 2016 topographic and hydrographic survey of the Madison River at I-90, near Three Forks, MT.

Date published: January 1, 2019

Metal-mixtures experimental stream study, part 3 (2015): Cu, Ni, and Zn exposures: aquatic, biofilm, tissue and sediment chemistry; larval aquatic insect counts, and algal biomass

This dataset is from the third of four experiments which test the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams. Here we report original data from testing the toxicity of copper (Cu), nickel (Ni), and zinc (Zn), singly and in mixtures, to natural aquatic insect communities. Methods are the...