High seas fisheries regulators fall short on conservation

By Daniel Cusick | 12/10/2025 01:35 PM EST

A new study found 16 multilateral organizations charged with protecting biodiversity in international waters are not meeting goals.

Fish swim near bleached coral.

Fish swim near bleached coral at Kisite Mpunguti Marine Park and Preserve in Kenya. Brian Inganga/AP

International regulatory authorities charged with monitoring and stopping overfishing in the high seas are failing to meet conservation goals, according to a new study led by Duke University researchers.

The result is ongoing biodiversity declines across two-thirds of the world’s oceans, the study found.

The findings about the lackluster performance of 16 multilateral bodies, called “regional fisheries management organizations,” or RFMOs, could make it more difficult to meet the conservation provisions agreed to by countries that have signed onto the United Nations’ “High Seas Treaty,” which takes effect in January.

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Four countries ratified the treaty in September, pushing it over the needed threshold.

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