Filed under: Uncategorized | Tags: bluefin tuna, cesium, cesium tuna, Cesium-134, Cesium-137, Fukushima, meltdown, radioactivity
Five months after the Fukushima disaster, Fisher of Stony Brook University in New York and a team decided to test Pacific bluefin that were caught off the coast of San Diego. To their surprise, tissue samples from all 15 tuna captured contained levels of two radioactive substances—ceisum-134 and cesium-137—that were higher than in previous catches.
The results “are unequivocal. Fukushima was the source,” said Ken Buesseler of the Woods Hole Oceanographic Institution, who had no role in the research.
Bluefin tuna absorbed radioactive cesium from swimming in contaminated waters and feeding on contaminated prey such as krill and squid, the scientists said. As the predators made the journey east, they shed some of the radiation through metabolism and as they grew larger. Even so, they weren’t able to completely flush out all the contamination from their system.
“That’s a big ocean. To swim across it and still retain these radionuclides is pretty amazing,” Fisher said.
All well below “safe levels,” of course, according to govt. agencies. That’s fine, I won’t be eating any. More for you!