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Upper Midwest Water Science Center images.

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Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park
Scientists sampling for fish on Shoepack Lake via canoe
Scientists sampling for fish on Shoepack Lake via canoe
Scientists sampling for fish on Shoepack Lake via canoe

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

Winter view of Houghton Lake, Michigan with pressure cracks in the ice
Houghton Lake Michigan frozen and cracked
Houghton Lake Michigan frozen and cracked
Two mini SPMDs prior to deployment
Two mini SPMDs prior to deployment
Two mini SPMDs prior to deployment
Two mini SPMDs prior to deployment

Two passive samplers (mini Semi-Permeable Membrane Devices or “SPMDs”) prior to a onemonth deployment for measurement of organic contaminants.

Two passive samplers (mini Semi-Permeable Membrane Devices or “SPMDs”) prior to a onemonth deployment for measurement of organic contaminants.

Best management practices of agricultural streams
Best management practices of agricultural streams
Best management practices of agricultural streams
Best management practices of agricultural streams

Effective best management practices have been shown to reduce the transport of sediment, nutrients, herbicides, and pesticides from agriculture to waterways.

Effective best management practices have been shown to reduce the transport of sediment, nutrients, herbicides, and pesticides from agriculture to waterways.

Photo of a center-pivot agricultural irrigation system.
Center pivot irrigation system
Center pivot irrigation system
Center pivot irrigation system

In spite of some very wet weather, this center pivot in southern Wisconsin is running. Irrigation has been growing in the Midwest in recent years and it could be effecting the transport of agricultural chemicals to streams.

In spite of some very wet weather, this center pivot in southern Wisconsin is running. Irrigation has been growing in the Midwest in recent years and it could be effecting the transport of agricultural chemicals to streams.

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