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Incidence of coral bleaching due to warming seawater.

Incidence of coral bleaching due to warming seawater.
Incidence of coral bleaching due to warming seawater.
Incidence of coral bleaching due to warming seawater.
Incidence of coral bleaching due to warming seawater.
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Barkley, Hannah
Incidence of coral bleaching due to warming seawater.
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06/14/2011
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Caption from Oceanus magazine, Vol. 51, No. 2, pg. 28:
One impact of warming ocean temperatures is bleaching, a phenomenon that can kill corals. White or bleached areas of the coral indicate where symbiotic algae have departed from coral tissues. (The corals have retained the algae and their color in the brown patches.) Without the algae to make food, the corals can starve.
Image Of the Day caption:
Warming seawater threaten coral reefs by disrupting the relationship between corals and symbiotic algae they host. The corals provide a protected place for the algae to live and chemical compounds that algae need for photosynthesis. In exchange, the algae produce oxygen and organic materials the corals need to grow. When seawater warms, the colorful algae move out, revealing the corals white skeletonsa phenomenon known as bleaching. To study the impacts of a warming ocean on corals, researchers Anne Cohens lab have deployed an extensive network of underwater sensors on and around reefs in Palau.
Photo by Hannah Barkley
© Woods Hole Oceanographic Institution
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