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The Los Angeles Times reports that "Pacific bluefin tuna carried radioactivity from Japan’s 2011 Fukushima Daiichi nuclear disaster all the way across the ocean to the shores of California, scientists reported Monday.

"They didn’t bring much — the levels were far lower than, for instance, levels of naturally occurring potassium 40 that have existed in the ocean for centuries — but the radioactivity was enough to survive the fishes’ migration east to North America from the Western Pacific."

“We showed that a bluefin tuna is capable of picking up radioactive material and transporting it across the ocean.  That’s new. Traditionally people don’t think of migratory animals as transport vectors for radioactive materials,” says doctoral student Daniel Madigan, who studies the migration patterns of tuna at Stanford University.
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