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Japanese oyster farms face mass die-offs due to climate change-linked heat and salinity, threatening exports.
Oyster farms in Japan’s Seto Inland Sea, which produce over 75% of the country’s farmed oysters, are experiencing mass die-offs with mortality rates up to 90% in some areas, attributed to record-high sea temperatures and increased salinity from reduced rainfall.
Officials link the crisis to climate change, with waters 1.5–1.9°C above average during key growing months.
Surviving oysters are smaller and less valuable.
The Ministry of Agriculture is investigating, while exports to Asia may be affected.
Farms in northern Sanriku remain unaffected.
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Las granjas de ostras japonesas se enfrentan a muertes masivas debido al calor y la salinidad vinculados al cambio climático, lo que amenaza las exportaciones.