State of the World’s Seaweeds 2025

 

 

The State of the World’s Seaweeds 2025 presents a global assessment of seaweed biodiversity, production, trade and sustainability, synthesising ecological and socio-economic evidence to inform conservation and responsible industry growth.

It highlights trends in wild harvesting and aquaculture, pressures on coastal ecosystems, governance gaps, and opportunities to strengthen sustainable management and equitable value chains. The analysis supports improved data systems, policy coherence and investment in climate-resilient seaweed sectors.

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Global seaweed stock and Marine Protected Area assessments provide potential opportunities to protect wild seaweeds

 

 

 

 

This Applied Phycology article presents findings from the GlobalSeaweed SUPERSTAR project assessing seaweed aquaculture and wild harvesting in relation to biodiversity protection and Marine Protected Areas.

Using global mapping and multi-dataset analysis across 82 countries, the study identifies 261 commercially used species, highlights major gaps in species identification and production reporting, and shows that nearly half of seaweed activities occur within 1 km of MPAs. With relevance to Indonesia and Malaysia, findings inform strategies to protect wild stocks, strengthen coastal ecosystems, build capacity and improve livelihoods.

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