Lionfish Decimating Tropical Fish Populations, Threatening Coral Reefs

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The invasion of predatory lionfish in the Caribbean region poses yet another major threat there to coral reef ecosystems -- a new study has found that within a short period after the entry of lionfish into an area, the survival of other reef fishes is slashed by about 80 percent.

More... (http://www.sciencedaily.com/releases/2008/07/080717164319.htm)