French Polynesia Expands Full Ocean Protection to 30% of Its Waters in Landmark Conservation Step

French Polynesia has expanded its fully protected marine waters by an additional 520,000 square kilometres, bringing approximately 1.4 million square kilometres, equivalent to 30 percent of its exclusive economic zone, under protection from extractive industries including seabed mining and industrial fishing. The announcement by President Moetai Brotherson on 7 June 2026 builds on the establishment of the Tainui Atea marine protected area in June 2025 and positions French Polynesia as one of the first Pacific territories to meet the 30 by 30 global conservation target through fully protected waters.

 

Scope and Geographic Coverage of the New Protection

 

The expansion adds 520,000 square kilometres of fully protected waters near the Austral, Marquesas, and Western Society islands to the 900,000 square kilometres already protected near the Society and Gambier islands under the 2025 Tainui Atea designation. The combined 1.4 million square kilometres of full protection sits within a broader EEZ spanning nearly 5 million square kilometres, within which artisanal fishing zones have been established to allow local communities to continue traditional fishing while industrial extraction is prohibited. In 2025, artisanal fishing zones collectively covering 190,000 square kilometres were created, with more than 8,000 additional square kilometres of artisanal fishing zones being added in 2026. Fishing within these zones is limited to single pole-and-line catch from vessels under 12 metres in length, preserving access for subsistence and small-scale commercial fishing while excluding industrial fleets.

 

Biodiversity Significance of the Protected Waters

 

The conservation value of the expanded protected area is substantial. The zone will support 20 species of sharks including the critically endangered scalloped hammerhead and oceanic whitetip, three species of sea turtles, 10 marine mammal species, 60 pelagic fish species, and 455 mollusc species. The area is also one of the few known breeding sites for 22 bird species including the endangered Polynesian storm-petrel, the vulnerable Phoenix petrel, and Murphy's petrel, which undertakes transoceanic migrations across the Pacific between feeding trips. The protection of breeding habitat for these species has significance for population recovery that extends well beyond French Polynesian waters, since migratory seabirds and pelagic species use connected ocean habitats across the broader Pacific. The expansion also protects commercially important species including swordfish, bigeye tuna, and opah in the Austral and Marquesas areas.

 

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Community Governance and Seabed Mining Moratorium

 

The protected area was established by consensus of communities within French Polynesia following more than a decade of advocacy from local mayors, reflecting a governance model that has embedded community participation as a foundational principle rather than an afterthought. Donatien Tanret, principal officer of the Pew Bertarelli Ocean Legacy, which helped develop the conservation plan, has noted that French Polynesia has maintained a moratorium on seabed mining in its waters since 2022, reaffirmed by the Presidency in 2025, and that banning seabed mining was embedded in the 2025 protection commitments. The moratorium provides direct relevance to the global debate on deep-sea mining governance at a moment when the United States is advancing lease sales in Pacific territories, with French Polynesia's community-endorsed prohibition offering a contrasting model of Pacific territorial governance. France supports enforcement of the protections through satellite vessel tracking and operational surveillance.

 

Global Significance and Political Leadership

 

President Brotherson has framed the expansion as a mission of Oceanian identity and expressed hope that it can inspire other countries, particularly larger ones, in how they manage their relationship with the ocean. The statement positions French Polynesia's conservation leadership within a broader Pacific cultural framework while also making an explicit call to larger nations whose ocean governance decisions have proportionally greater global impact. The timing of the announcement, ahead of the 2026 UN Ocean Conference, adds political weight to the commitment and contributes to building momentum for broader adoption of strong ocean protection measures. For the international community working toward the 30 by 30 target under the Convention on Biological Diversity, French Polynesia's achievement of that threshold through fully protected marine waters provides a concrete and replicable example at a scale that demonstrates the feasibility of ambitious ocean protection even within the constraints of small island governance.