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A line of dead Akoya pearl oysters (top) is shown next to a line of live, healthy ones. | EHIME PREFECTURE / VIA KYODO
The mysterious death of over 20 million Akoya pearl oysters in Ehime, Mie and other prefectures this summer is expected to hobble pearl production next year and beyond.
While the cause of the die-off is unclear, oyster producers have started taking steps to minimize the damage.
It takes three to four years to produce a cultured pearl, which the oysters make by depositing layers of nacre around a tiny bead inserted into their shells.
Ehime, the largest producer of Akoya pearl oysters in Japan, noticed the die-off in late July. At the end of September, the young shellfish cultured there stood at about 11 million, nearly 70 percent below average.
The die-off was the first in Japan since 1996, according to Takeshi Miura, a professor at Ehime University’s Faculty of Agriculture.
Courtesy of japantimes.co.jp
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