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8-day undersea mission begins experiment to improve coral reef restoration
Date:6/13/2008

velopment, and the corals there would have died anyway.

The researchers are splitting each of the fragments in half and placing one half in a shallow site (30 feet deep) and the other half in a deep site (60 feet deep) to see how they respond over time. "By splitting the fragments, we know that they are the same genetically, and we then can determine whether their abilities to withstand transplanting are due to their genetic makeup or to some environmental factor," said Baums.

While her colleagues in Aquarius transplant corals into the deep site, Baums and Margaret Miller, a scientist with the National Oceanic and Atmospheric Administration (NOAA) and the project's leader, are transplanting corals into the shallow site. Once the animals are established, the team will return to the sites monthly to measure, among other things, the corals' growth rates, their photosynthesis rates, and the biodiversity of the beneficial algae that live inside their cells.

The scientists expect that the study's results will help them to improve coral restoration efforts in the future. "The experiment will tell us why some corals die while others live after transplantation," said Baums. "We want to know if some corals die after transplantation because they already were weakened by an external force or because they are genetically weaker than some other individuals. Coral reefs are important because they protect our shores from wave action and create habitat for fish, but they also are beautiful. I am glad that I am able to apply my scientific expertise to their protection."


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Contact: Barbara K. Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

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