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Blue crabs in the bay find green invaders delicious

Published 12/13/05

The Chesapeake Bay has a long list of invaders that can't be turned back without significant human effort, including mute swans, snakeheads, nutria and phragmites.

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But at least one of the nonnative species is being bounced from the bay by a homegrown carnivore.

Blue crabs have developed a taste for green crabs, keeping their population down, according to a study by scientists from the Smithsonian Environmental Research Center in Edgewater. Their results were published in the latest issue of the journal Ecology.

In one of a series of tests for the study, researchers put green and blue crabs in controlled...

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