September Stream Science Classes at Audubon Naturalist Society


For 25 years, ANS has been teaching the natural history of aquatic ecology and training volunteer stream monitors who track the health of our region’s streams. Learn from the experts: study stream science in our introductory classes, and you just might be inspired to become a stream monitor yourself! Our advanced classes are perfect for those interested in deepening their knowledge about biological stream monitoring and are taught by our Maryland Biological Stream Survey-certified instructor Cathy Wiss. Our classes are great for fly fishermen, citizen science program or team leaders, aquatic resource biologists, and anyone interested in monitoring and understanding stream health.


Registration & Fee Information
Registration required. The classes are open to anyone 10 years and older. Prices for all classes are $15 Members/$25 non-members. Learn more and register at Contact with questions.


How to Read Your Stream
Thursday, September 27 (7-9:30 pm)
Woodend Sanctuary, Chevy Chase, MD
Learn about the influence of land uses on streams, stream character and dynamics, bank erosion, bar formation, substrate composition, different velocity-depth regimes, and the importance of riffles and riparian vegetation. We will practice assessing stream habitat by using photgraphs of streams and the forms that monitors fill out in the field. This class is recommended for anyone who plans to participate in the ANS water quality monitoring program and is a good refresher on habitat assessment for experienced monitors.

Learn more and register at