Citizen Science

Citizen Science inspires citizens to get more involved in the issues affecting the natural places they cherish and provides an effective way to collect scientific data in the midst of everyday life.

For these reasons and more, St. Johns Riverkeeper is excited to launch citizen science programs to help protect and restore our river – with the help of concerned citizens like you!

Know Your Green Programs

Through our targeted Know Your Green algae programs, we engage volunteers and concerned citizens with the tools and information they need to better understand blue-green algae blooms, take action, and effectively report blooms when they see them on the river. Stay tuned for future Know Your Green public programs.

If your neighborhood association or group is interested in a Know Your Green algae presentation, please contact our outreach director, Karen Estella Smith, at to schedule one.



Report an Algae Bloom

If you see an algae bloom, take photos and report it to the Florida Department of Environmental Protection. Additionally, send the photos and location of the bloom to us at so we can follow up and take action if necessary. Concerned citizens like YOU are our eyes across the watershed!

Learn about ways you can help reduce algal blooms at home and in your community by living a River Friendly lifestyle. Educate yourself, take action, and Don’t Feed the Algae!

Become an Algae Bloom Water Quality Tester 

In the past, we’ve asked trained citizens to help detect potential toxins in algae blooms in the St. Johns River with their own take-home, do-it-yourself algae testing kits.

There are no upcoming algae testing trainings at this time.