How California Ecologists Are Fighting Back Against Invasive Green Crabs03:29
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One of the roughly 10,000 invasive European green crabs removed from Seadrift Lagoon this summer by the Green Crab Project. (Peter Arcuni/KQED)
One of the roughly 10,000 invasive European green crabs removed from Seadrift Lagoon this summer by the Green Crab Project. (Peter Arcuni/KQED)
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The European green crab ranks among the world's worst invasive species — decimating populations of native clams, fish and other crabs. The voracious predators arrived in the U.S. from Europe in the 1800s, and today cost the East Coast fishing industry $19 million each year.

More recently, green crabs are threatening commercial fisheries in California.

KQED's Peter Arcuni takes a look at how ecologists in Marin County are striking back.

This segment aired on December 25, 2017.

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