Pacific Ocean Algal Bloom Grows More Than Ever

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Industry Tags: Algae, Pollution, Research

Toxic algae bloom in the Pacific Ocean stretching from California north to Washington state might be the largest ever detected off the U.S. West Coast​

The bloom, which first appeared in May, involves microscopic algae that produce a neurotoxin potentially fatal to humans called domoic acid, according to researchers at the University of California at Santa Cruz.

Levels of domoic acid in California's Monterey Bay are some of the highest scientists have ever observed, Raphael Kudela, professor of ocean sciences at the Santa Cruz campus, said in a statement.

"The domoic acid levels are extremely high right now in Monterey Bay, and the event is occurring as far north as Washington state," he said. "It appears this will be one of the most toxic and spatially largest events we've had in at least a decade."

Researchers are concerned that shellfish and other marine life, including razor clams, crabs, hake and West Coast sardines, could have elevated levels of domoic acid.

The acid has been responsible for several deaths and has sickened more than 100 people, according to the Washington state Department of Fish and Wildlife.

Fish and shellfish can accumulate the toxin without ill effect, the agency said, but in humans it crosses into the brain and interferes with nerve signal transmission.

Source: Reuters

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