Caribbean Sargassum project to develop innovative products for climate resilience advances to new phase

Sargassum seaweed influxes have been a bane to the Caribbean since 2011, but the Caribbean Regional Fisheries Mechanism (CRFM) and Plant & Food Research (PFR), a New Zealand government-owned Crown Research Institute, are advancing a regional project aimed at turning Sargassum into innovative products that will create jobs and income as well as contribute to building the region’s climate resilience and mitigating the negative impacts of Sargassum in the region.

Sargassum blooms in the Atlantic have already begun, and they are expected to inundate the Caribbean region by April 2023. The Outlook of 2023 Sargassum blooms in the Caribbean Sea and Gulf of Mexico, released by the University of South Florida Optical Oceanography Lab on 1 February 2023, revealed that, “The overall Sargassum quantity in the Atlantic Ocean doubled from December 2022 to January 2023 (8.7 million tons), again setting a new record (previous January record was 6.5 million tons in 2018).”

The outlook noted that this is the second consecutive monthly doubling of Sargassum, previously observed only in 2018, and all indications are that the Sargassum biomass will continue to accumulate and migrate westward over the next several months. Climate change has been identified as one of the major contributing factors to this phenomenon which has been affecting our region—and principally our coastal fishing communities—for the past 12 years.

The CRFM-Plant & Food Research collaboration will identify and use appropriate sustainable technologies for efficient harvesting of Sargassum, according to international best practices. The final phase is outreach and supply chain development, which would entail the dissemination of a model to industry stakeholders and wider Caribbean.