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They were taking part in a massive operation, led by NOAA, to preserve the last remaining live elkhorn and staghorn corals from Florida’s coral reefs.

Some of the new Caribbean protections overlap with those already in place for threatened elkhorn and staghorn corals, which have been devastated by white band disease.

This year, for the first time, UM researchers including Williamson watched the spawning of staghorn corals that had been raised in a lab and transplanted to a restoration reef off Key Biscayne.

The species most likely to bleach and die are staghorn coral and other root and branch corals with spaces that allow many kinds of fish to swim and gain protection.

On the side walls she hung cutout shapes of staghorn corals covered with mirrored glass.