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Latest Zooxanthella Stories

2012-01-20 11:45:08

Recent experiments conducted at the Australian Institute of Marine Science (AIMS) produced striking results, showing for the first time that corals hosting a single type of “zooxanthellae” can have different levels of thermal tolerance — a feature that was only known previously for corals with a mix of zooxanthellae. Zooxanthellae are algal cells that live within the tissue of living coral and provide the coral host with energy; the relationship is crucial for the...

2011-10-27 10:27:24

A team of researchers from the Hawai'i Institute of Marine Biology (HIMB) have developed an interactive global map of corals and zooxanthellae as part of a hybrid web application titled GeoSymbio. This application provides global-scale biological and ecosystem information on symbiotic zooxanthellae called Symbiodinium which are uni-cellular, photosynthetic dinoflagellates that live inside the cells of other marine organisms like anemones, jellyfish, and corals. Symbiodinium are responsible...

2011-10-17 10:43:50

Coral reefs are among the most diverse ecosystems on the planet, second only to tropical rain forests. Bird's nest coral (Seriatopora hystrix) is common throughout the Indo-Pacific and is able to live across a range of depths. However, there is little gene flow between the coral populations at each depth and even the algal endosymbionts (Symbiodinium), which provide energy for the corals to survive, are genetically different across habitats. New research published in BioMed Central's open...

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2011-01-15 10:57:34

The world's corals not only display stunning beauty and diversity "“ they also have rhythm, man. And that helps to keep them going through the lonely low-­"point of the night, when their partner robs them blind. That corals, among the simplest of Earth's creatures, have some curiously human-­"like attributes is emerging in a fresh set of revelations from by an international team of Australian and Israeli coral geneticists at...

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2010-10-21 09:18:08

Researchers at the Hawai"˜i Institute of Marine Biology (HIMB), an organized research unit in the University of Hawai"˜i at Mānoa's School of Ocean and Earth Science and Technology have made a remarkable new discovery. When most people envision coral, they typically think of shallow-water reef-building corals found along beaches and tropical nearshore habitats. These "typical" corals are dependent upon photosynthetic algae (also known as...

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2010-07-16 13:15:20

Scientists say that a species of coral in the Red Sea could stop growing by 2070 if current warming trends continue. A team of researchers said they used 3D technology to find that the rate of growth of Diploastrea heliopara declined by 30 percent since 1998. They found that rising sea surface temperatures were already "driving dramatic changes" in the growth rate of the important reef-building organism. Co-author Anne Cohen, a research specialist at Woods Hole Oceanographic Institution...

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2010-02-16 12:52:24

Penn State researchers and their international collaborators have discovered a diversity of corals harboring unusual species of symbiotic algae in the warm waters of the Andaman Sea in the northeastern Indian Ocean.  "The existence of so many novel coral symbioses thriving in a place that is too warm for most corals gives us hope that coral reefs and the ecosystems they support may persist "” at least in some places "” in the face of global warming," said the team's leader,...

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2009-10-22 11:05:00

With technology similar to that used by physicians to perform magnetic resonance imaging (MRI) scans, researchers from six institutions"”including the National Institute of Standards and Technology (NIST)"”working at the Hollings Marine Laboratory (HML) in Charleston, S.C., are studying the metabolic activity of a pathogen shown to cause coral bleaching, a serious threat to undersea reef ecosystems worldwide. Coral bleaching is the whitening of living coral due to a disruption of...

2009-09-10 12:53:00

A U.S.-led scientific team has found a rare photosynthetic alga might be able to save certain colonies of coral from the damaging effects of global warming. The team, led by Pennsylvania State University Assistant Professor Todd LaJeunesse, evaluated corals -- and the photosynthetic algae that live inside their cells -- before, during and after a period in 2005 when global warming caused Caribbean Ocean sea-surface temperatures to rise. Symbiodinium trenchi is normally a rare species of...

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2009-09-10 08:20:00

Scientists take advantage of 'experiment of nature' to discover new insights into coral bleaching A rare opportunity has allowed a team of scientists to evaluate corals--and the essential, photosynthetic algae that live inside their cells--before, during, and after a period in 2005 when global warming caused sea-surface temperatures in the Caribbean to rise. The team, led by Penn State biologist Todd LaJeunesse, found that a rare species of algae that's tolerant of stressful environmental...


Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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