Enhancing Pearl Shell Value in French Polynesia: Survey and Strategies for Sustainable Pearl Farming Development

The Marine Resources Directorate (DRM) recently launched a survey to assess the quantities of pearl shells stored onshore at Polynesian pearl farms. This initiative is part of a broader strategy to develop the pearl shell sector, aiming to find local solutions for valorizing Pinctada margaritifera shells, which are currently exported in bulk.

The DRM is exploring several avenues to transform this resource into high-value-added products, including:

  • Using shell derivatives in agriculture (e.g., fertilizers or dietary supplements for laying hens),
  • Incorporating shells into handicrafts,
  • Establishing a local industry for nucleus production from powdered shell.

However, a major challenge remains identifying reliable and sufficient sources to supply these new value chains.

To address this, in late September, the DRM launched a survey to inventory shell stocks across French Polynesia’s 349 active pearl farms. Local pearl farming management committees are collaborating with industry professionals to compile precise stock data, with full estimates expected by October 26.

While pearl shells have been exported since the 1980s—generating modest income for producers—the DRM is now prioritizing local valorization over bulk exports to Asia. Between 2014 and 2020, Polynesia exported an average of 1,604 tons of shells annually, with 1,299 tons shipped in 2020 (revenue: 183 million Fcfp). The average price reached 141 Fcfp/kg in 2020, surpassing the 124 Fcfp/kg average since 2014.

Most onshore stocks consist of shells unfit for commercial sale due to defects or damage. Nevertheless, the DRM remains optimistic about developing more profitable and sustainable solutions for this local resource. The ongoing survey’s results will provide critical data to guide efforts toward more effective local valorization of Tahitian pearl shells.

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