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Too much algae -- and too many microbes -- threaten coral reefs
A healthy coral reef in the Line Islands in the central Pacific Ocean.
Credit: Brian Zgliczynski
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A degraded reef dominated by fleshy algae in the Line Islands.
Credit: Jennifer Smith
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Scientist Forest Rohwer collecting microbial samples for further study.
Credit: Zafer Kizilkaya
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Fleshy algae may soon smother this otherwise healthy coral reef.
Credit: Jennifer Smith
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A team of divers descending to survey and sample a reef for microbes.
Credit: Jennifer Smith
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Coral slowly being overgrown by fleshy algae.
Credit: Jennifer Smith
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