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Latest Zooxanthella Stories

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2009-07-22 07:05:00

A new study shows that bleached corals bounce back to normal growth rates more quickly when they have clean water and plentiful sea life at their side The new research study led by scientists at Scripps Institution of Oceanography at UC San Diego suggests that by improving overall ocean health, corals are better able to recover from bleaching events, which occur when rising sea temperatures force corals to expel their symbiotic algae, known as zooxanthellae. Coral bleaching is a phenomenon...

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2009-05-20 09:15:00

Experts say that more than half of the world's coral reefs could disappear in the next 50 years, in large part because of higher ocean temperatures caused by climate change. But now Stanford University scientists have found evidence that some coral reefs are adapting and may actually survive global warming. "Corals are certainly threatened by environmental change, but this research has really sparked the notion that corals may be tougher than we thought," said Stephen Palumbi, a professor of...

2009-01-20 14:33:27

U.S. scientists say they've identified the bacteria responsible for yellow band disease -- an infection that affects the world's coral reefs. Researchers at the Woods Hole Oceanographic Institution and colleagues said YBD sickens coral colonies and is apparently a threat that's becoming worse with global warming. Just as a doctor can diagnose a child with chicken pox by the small, round bumps on her skin, you can tell a coral with yellow band disease by its own characteristic markings, the...

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2008-03-24 11:25:00

Over two hundred million humans depend for their subsistence on the fact that coral has an addiction to "Ëœjunk food' - and orders its partners, the symbiotic algae, to make it.This curious arrangement is one of nature's most delicate and complex partnerships "“ a collaboration now facing grave threats from climate change.The symbiosis between coral "“ a primitive animal "“ and zooxanthellae, tiny one-celled plants, is not only powerful enough to build the largest...

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2006-02-01 06:25:00

SYDNEY, Australia -- A bout of coral bleaching hitting Australia's Great Barrier Reef could be as bad as an episode in 2001-2002 that affected 60 percent of the reef, scientists warned Tuesday. An international team studying the world's reefs said in a statement that water temperatures for the past four months off Australia's northeastern coast have been well above long-term averages. "We were all very concerned when we saw the temperature readings for December," said Prof. Ove Hoegh-Guldberg...

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2005-11-03 12:59:21

SAN JUAN, Puerto Rico -- Unusually warm waters are bleaching coral reefs throughout the Caribbean, raising fears of a die-off of the important organisms, scientists and environmentalists said Wednesday. Ocean temperatures have been slowly rising, threatening sea coral that can only live within a narrow temperature band, according to the experts. A slight increase in temperature can induce coral bleaching and eventually kill the coral. Recent data gathered by the University of Puerto Rico...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'