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Learn about different methods for monitoring stream water quality, such as physical, chemical, and biological assessments. Discover why macroinvertebrates are crucial indicators. Get involved by posting data, photos, and videos on the website. Contact information provided for further engagement.
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Types of Stream monitoring • Physical • Chemical • Biological
Physical • Watershed survey • Visual assessment of the stream – erosion, vegetation on banks, smell, color, etc. • Stream flow
Chemical • Temperature, pH, dissolved oxygen, biological oxygen demand, turbidity, etc. • Labs test for specific pollutants, such as heavy metals. Photo Credit: Shannon Carnagie
Biological • Aquatic Macroinvertebrates (insects &crustaceans) • Aquatic – Living in water • Macro – Large enough to see with naked eye • Invertebrate – No backbone
Why Macroinvertebrates? • Sensitivity to pollution varies • Live underwater and breathe dissolved oxygen • Allows us to see what the water quality has been over a longer period of time
Water Quality Rating • Diversity • Sensitivity to Pollution
Activity • Critter Cubes– pg. 43/addendum pg. 5
You can… • Post stream monitoring data • Photos, Videos • Interactive project map • Additional resources
Next Steps • Curriculum • Run programs on your own • Set up a program leaders training • Already monitoring? • Submit your data • Website • Sign up for a program page • Explore the resources
Contact Information Erin Johnson Clean Water Fellow Izaak Walton League of America ejohnson@iwla.org 301-548-0150 x229