Science

Long-standing Indigenous practice of adding shells to sand helps young clams withstand ocean acidification

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 30/10/2026, 12:10:24 UTC.

Briefings

New research from the University of California, Davis explains that adding crushed shells to beach sand protects shell-making animals like clams, oysters, and mussels from ocean acidification. The study indicates that this practice helps young clams withstand the harmful effects of rising acidity in the ocean. The findings were published in October 2026, providing a scientific explanation for a long-standing Indigenous practice of using shells in beach nourishment.

Key points

• Crushed shells added to beach sand protect shell-making animals from ocean acidification by providing calcium carbonate.
• The study was conducted by researchers at the University of California, Davis and published in October 2026.

Context

This research addresses a critical environmental issue where rising ocean acidity threatens marine life. Understanding how to mitigate this threat is essential for preserving coastal ecosystems and supporting fisheries.

Limitations

The study covers only shell-making animals like clams, oysters, and mussels. It does not provide data on other marine species or the full extent of ocean acidification impacts on the entire ecosystem.

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