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Invasive kelp comes to San Francisco Bay, worrying scientists and outpacing eradication effort
10 July 2009

SAN FRANCISCO (AP) - An invasive, fast-growing seaweed from the Far East has been found in San Francisco Bay, worrying marine scientists and outpacing eradication efforts.

The kelp is called Undaria pinnatifida and was first found in the state at the Port of Los Angeles in 2000. A year later it was found at Catalina Island and along the shores of Monterey Bay.

In May, a marine biologist found the kelp clinging to docks and fouling boat hulls and pier pilings at a yacht harbor in San Francisco Bay.

Previously, ocean scientists believed the kelp's northward spread had been stopped at Monterey Bay. But federal funding for eradication dried up last year, and volunteer divers are now the main line of defense against the invasive seaweed.
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