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DNR to Host Maryland Stream Wader Training

A Stream Wader volunteer using a net to catch critters

A Stream Wader volunteer using a net to find and survey critters

Who: Teachers, students, environmental groups, citizens

When: Saturday, February 22 from 9 a.m. to 3 p.m.
Where: Robinson Nature Center, 6692 Cedar Ln, Columbia
Contact: Sara Weglein, coordinator,

Maryland Biological Stream Survey stream sampling protocols are currently required by some counties and State agencies ─ and the program can always use volunteers to help fill the gaps where crews can’t sample! To accommodate all interests and requirements, DNR offers various training opportunities and levels of certification.

To become a volunteer Stream Wader, participants must complete a one-day training on site selection, safety, sampling protocols, aquatic invertebrate ecology and data reporting. The session will include indoor presentations and sampling demonstrations at a nearby stream. About 65 volunteers are expected to attend.

After completion, participants spend about two more days during the March-April window collecting aquatic invertebrate samples from stream beds. Volunteers work in the same watersheds across Maryland as those sampled by biologists, only at a smaller scale. Thus, volunteer data fits seamlessly into results from the Maryland Biological Stream Survey.

This year marks the 15th year of the Stream Waders Program. Since 2000, about 7,300 stream sites have been sampled by Stream Waders volunteers and about 2,000 volunteers have participated in the program. Learn more at or on Facebook at