BleachWatch VI

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Photo by TNC

What is BleachWatch Virgin Islands?

Stressful conditions can cause “bleaching” on coral reefs which weaken corals. The BleachWatch VI program prepares for, monitors and assesses bleaching events that affect Virgin Islands coral reefs. BleachWatch VI depends on divers and snorkelers to submit brief observations about what they see on the reef in order to produce status reports of coral reefs before, during and after bleaching events.

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Photo by John Melendez

Get involved. Become a BleachWatch VI volunteer!

The BleachWatch VI program conducts trainings for interested divers, snorkelers and swimmers who are willing to contribute to monitoring data. The training includes an introduction to coral bleaching, helps you differentiate between bleaching, paling, disease, and guides you through how to perform a BleachWatch survey.

    1. Complete a trainingContact Us to find out when the next training will be or schedule a training for your group. Click here for listing of 2017 trainings.
    2. Submit Quick Reports or Full Reports: The training will teach you how to perform both the quick and full survey reports about reef disturbances. Use the links below or download the app for easy submission from your mobile device.

What Would You Like to Do?

Submit Quick

Been diving or snorkeling recently? Keep us posted on bleaching and other disturbances using this two question survey. Even a response of “no bleaching” is helpful so let us know what you see!

Submit Full

Already took the BleachWatch VI training? Submit your datasheets here or using the BleachWatch VI app!



Download Training

Download and view the training presentation for an introduction to bleaching and how to fill out the reports.



Download BleachWatch

Ready to perform a survey? Download and print a datasheet or Contact Us for replacement datasheets.


What is Coral Bleaching?

When corals are under stress, they lose their symbiotic algae (zooxanthellae) making them appear bright white, a state we call “bleached.” Bleached corals are still alive, but are much more vulnerable to disease and other stressors. In the Virgin Islands, the warm water of late summer can be stressful enough to cause bleaching events, and if temperatures don’t return to a manageable level, the corals will not survive

The BleachWatch VI
App is Here!

Download Our New Mobile
App Today!


Quick Report
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