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New story map provides access to historic biological and habitat sampling locations in Michigan's streams and rivers

Rapid biological monitoring sites sampled on the Silver River, Keweenaw County, 2021The latest story map produced by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) provides a look at EGLE's rapid biological and habitat monitoring program for rivers and streams - allowing the public to see data collected from their nearby lakes and streams.

EGLE aquatic biologists sample macroinvertebrates and fish to determine the health of rivers and streams. Water and stream sediment samples may also be collected for analysis and water quality assessment. Aquatic macroinvertebrates are insects and other small organisms that live in streams and rivers. These organisms are excellent indicators of water quality because many live in the water throughout the year. Some macroinvertebrates tolerate pollution more than others. In general, healthy streams have a wider variety of macroinvertebrates than waters that are polluted.

This information is collected throughout the state on a five-year rotating watershed basin cycle. Using this new story map, the public can explore watersheds, land use, and monitoring results throughout the state. The story map also allows the public to see if macroinvertebrates have been collected in their watershed in the past, when the watershed will be sampled again, and find the latest biological monitoring report available for that watershed.

The story map provides the name and email of the EGLE staff biologist who can answer additional questions about that watershed and direct users to other sources of information.

Caption: Rapid biological monitoring sites sampled on the Silver River, Keweenaw County, 2021

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