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Three people working together to electroshock fish and collect in nets.
Fish shocking in Menomonee River at Wauwatosa, Wisconsin
Fish shocking in Menomonee River at Wauwatosa, Wisconsin
Fish shocking in Menomonee River at Wauwatosa, Wisconsin

Fish sampling using a backpack shocker. USGS scientists use a backpack-mounted electrofishing device to sample fish communities in the Menomonee River at Wauwatosa, WI (MENOMONEE RIVER AT WAUWATOSA, WI - USGS Water Data for the Nation), near 70th Street.

USGS scientists collecting phytoplankton for mercury and PFAS analyses in Saginaw Bay of Lake Huron​
Collecting phytoplankton for mercury and PFAS analyses in Saginaw Bay of Lake Huron​
Collecting phytoplankton for mercury and PFAS analyses in Saginaw Bay of Lake Huron​
Researchers Learning About the Phragmites Adaptive Management Framework
Phragmites Adaptive Management Framework Training
Phragmites Adaptive Management Framework Training
Phragmites Adaptive Management Framework Training

Participants at Phragmites Adaptive Management Framework training in norther Wisconsin, June 2022. Photo credit: Taaja Tucker-Silva, USGS. 

R/V Arcticus docked at the UW-Milwaukee School of Freshwater Sciences
R/V Arcticus docked at the UW-Milwaukee School of Freshwater Sciences
R/V Arcticus docked at the UW-Milwaukee School of Freshwater Sciences
R/V Arcticus docked at the UW-Milwaukee School of Freshwater Sciences

The R/V Arcticus docked at the UW-Milwaukee School of Freshwater Sciences on its journey from home base in Cheboygan, Michigan to Ludington, Michigan.

Woman standing on boat collecting samples from side
Grace Armstrong
Grace Armstrong
Grace Armstrong

Grace Armstrong collecting water samples while riding in a boat, sampling in Wisconsin.

Grace Armstrong collecting water samples while riding in a boat, sampling in Wisconsin.

A scientist's hand holding a plastic sample bottle filled with yellow lake water, with lake in the background
Plankton collected from Lake Mendota
Plankton collected from Lake Mendota
Plankton collected from Lake Mendota

Collection of water and phytoplankton for metals analysis in Lake Mendota, Wisconsin. M3 Research Lab researchers collect in two to five liter containers and then filter and size fractionate the samples at the lab process these samples back at the lab to determine the amount of mercury and metals entering the food web.

Collection of water and phytoplankton for metals analysis in Lake Mendota, Wisconsin. M3 Research Lab researchers collect in two to five liter containers and then filter and size fractionate the samples at the lab process these samples back at the lab to determine the amount of mercury and metals entering the food web.

Scientist collects plankton in water by holding a large net over the side of a boat
Scientist collecting plankton off side of boat in Lake Mendota, Wisconsin
Scientist collecting plankton off side of boat in Lake Mendota, Wisconsin
Scientist collecting plankton off side of boat in Lake Mendota, Wisconsin

USGS scientist Grace Armstrong is demonstrating how we collect plankton in lake waters, by towing the plankton net in Lake Mendota, Wisconsin.
 

Scientist sampling water in stream in early spring.
Sampling for organic contaminants/Stream Health Synthesis in Root River near Franklin, Wisconsin
Sampling for organic contaminants/Stream Health Synthesis in Root River near Franklin, Wisconsin
Sampling for organic contaminants/Stream Health Synthesis in Root River near Franklin, Wisconsin

USGS scientist collecting a baseflow sample to test for organic contaminants (pharmaceuticals, pesticides, and organic waste compounds), with crest stage gage in the foreground at Root River near Franklin, Wisconsin. https://waterdata.usgs.gov/monitoring-location/04087220/

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