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Two nurse sharks hover over a baited cage
Lesson Plan

Sea Surface Temperature and Coral Bleaching

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Two nurse sharks hover over a baited cage
Lesson Plan

In Hot Water

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Two nurse sharks hover over a baited cage
Lesson Plan

Corrosion to Corals

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A Coral Reef Watch satellite monitors the temperature of the world’s oceans.
Photo

Coral Reef Watch Satellite

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These bleached corals in the Gulf of Mexico are the result of increased water temperatures.
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Bleached Corals

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This orange boring sponge (Cliona varians) overgrows several coral species at Panama's Smithsonian Tropical Studies Institute.
Article

Ocean Acidification Excites Boring Sponges

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A coral head in the Mesoamerican Reef has both bleached and living coral. The white sections are bleached and the brown parts still contain zooxanthellae, the symbiotic algae that provide food to their coral hosts.
Article

Coral Under Pressure: Monitoring Bleaching In Real Time

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Nancy standing by the ocean
Article

Corals to Communication: Nancy Knowlton’s Success Focusing on the Imminent

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A photo of coral visibly affected by disease.
Photo

Diseased Coral

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Algae has overtaken this coral reef off heavily populated Kiritimati, or Christmas Island.
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Unhealthy Coral Reef, Kiritimi, Line Islands

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Convict surgeonfish are the roaming sheep of the reef but, instead of noshing on grass, they feed on algae.
Article

Helpful Herbivores

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Ari Daniel Shapiro and Dr.Randi Rotjan of the New England Aquarium, journey to the Phoenix Islands to study coral bleaching.
Audio

Coral Reefs: One Species at a Time

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