10 Nov '11, 8pm

Fish Acting as Lawn Mowers Help Coral Reefs Recover

Fish Acting as Lawn Mowers Help Coral Reefs Recover

A major barrier for corals trying to recover from damage is the overgrowth of algae. Too much algae, and coral larvae aren't able to find suitable spots to settle down and grow up. But, with the help of a few certain types of fish, coral reefs stand a better chance of bouncing back from problems like storms or predation. PhysOrg reports on research from University of California, Santa Barbara that found in some places, fish can be the key to corals' survival. The South Pacific island of Moorea, in French Polynesia, seemed to bounce back easier after the loss of live coral in the 1980s. The researchers wanted to understand why. Crown-of-thorns sea stars had fed on corals, and algae grew on the skeletons. Normally, that's a bad sign. But in this area, there were larger numbers of bigger, fatter parrotfish and surgeonfish. It turns out, that the coral reef nearest the island ...

Full article: http://www.treehugger.com/ocean-conservation/fish-acting-...

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Fish Acting as Lawn Mowers Help Coral Reefs Recover | Care2 Causes

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Support orangutan conservation organizations. If you don't have money for donations, ask if you can help in other ways by ...