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BleachWatch In-Person Training (Key West)

June 11 @ 6:00 pm - 7:30 pm

BleachWatch logo showing a dive mask framing coral that is turning from orange to light grey

Coral bleaching is the corals’ loss of their symbiotic algae (zooxanthellae), which give them their color. Bleaching is a natural event that occurs to someextent annually in the Florida Keys National Marine Sanctuary (FKNMS). Records show that coral bleaching has been occurring for many years in the Florida Keys and also indicate that the frequency and severity of these events has steadily increased since the 1980s. Large-scale mass coral bleaching events are driven by unusually warm sea temperatures and calm seas. The effects of these mass events are potentially devastating to ecosystems and the people who depend on them.

The initial onset of mass coral bleaching can vary among different species, geographic locations, types of reef zones and a fluctuation of severity, which makes it very difficult to predict where or when it will occur.  The Florida Keys BleachWatch Program, modeled after Great Barrier Reef’s BleachWatch, is a team of trained recreational, commercial and scientific divers who help monitor and report on conditions at the reefs.  After each visit to the reef, the divers complete a data form,either printed or online, and send it to the BleachWatch Coordinator at   The divers will be provided with an underwater wristband to use as a reference and a reminder key below and above the water.



June 11
6:00 pm - 7:30 pm


Florida Keys National Marine Sanctuary’s Eco-Discovery Center
33 East Quay Road
Key West, FL 33040 United States
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