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, led by the Scottish Association for Marine Science, 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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State of the World’s Seaweeds 2025

The State of the World’s Seaweeds 2025, presented by the Natural History Museum and the Scottish Association for Marine Science, provides 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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Recognising Seaweeds: Addressing Gaps in International Biodiversity Frameworks for Global Seaweed Conservation

A thematic analysis of 18 international biodiversity frameworks to assess the representation of seaweeds. It explores ways to better integrate them into policies. Obstacles preventing full integration include imperfect institutional coordination, inconsistent terminology use, limited representation within biodiversity targets and the absence of legally binding agreements with enforcement mechanisms.

It recommends improvement of seaweed integration into biodiversity frameworks, thereby supporting broader marine ecosystem resilience. This will contribute to achieving Sustainable Development Goal 14 (Life below water).

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Comparison of two cultivation methods for domesticating wild red algal eucheumatoids for use in the seaweed industry

A study of Eucheumatoid seaweed cultivation methods Semporna, East Malaysia. Seaweed farming supports coastal livelihoods in Malaysia but relies on old, genetically uniform Kappaphycus clones, increasing vulnerability to pests and diseases which in turn is exacerbated by climate change.

Two cultivation methods, tie tie and basket net, were tested for wild eucheumatoids from four sites. Tie tie cultivation produced higher growth rates, while basket nets improved survival by reducing grazing and detachment. Surviving wild strains show potential as resilient new commercial cultivars.

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