Kappaphycus Alvarezii (Macho)

About the Species

Kappaphycus alvarezii, locally known as Macho, is one of the main seaweed species cultivated by the Belize Women’s Seaweed Farmers Association (BWSFA). Thriving in the crystal-clear waters off Belize’s southern coast, this red seaweed grows on carefully maintained underwater lines—absorbing nutrients from the ocean while supporting marine biodiversity.

Sustainable Cultivation

Each seaweed strand is cultivated using low-impact, regenerative farming methods that restore marine ecosystems and create lasting livelihoods. BWSFA farmers monitor growth cycles, protect coral health, and ensure that every harvest contributes to a balanced and thriving ocean environment.

Farming with care, guided by community and conservation.

Nutritional & Commercial Value

Macho is rich in minerals, antioxidants, and carrageenan, a natural compound used in food, wellness, and cosmetic products. BWSFA processes Kappaphycus alvarezii into dried seaweed, gels, and powders, supporting Belize’s growing sustainable seaweed industry and bringing eco-friendly innovations to the global market.

Why It Matters

Cultivating Kappaphycus alvarezii demonstrates how community-led seaweed farming can drive positive change—creating income for coastal families, reducing pressure on wild fisheries, and advancing Belize’s Blue Economy vision. Each harvest represents progress toward a more sustainable and inclusive future.

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WHAT WE DO

Our Work

Seaweed Farming & Training

Value-Added Product Development

Outreach & Education

Advocacy

Marine Conservation

Seaweed Processing

The processing of seaweed at BWSFA is a careful, hands-on practice that reflects both tradition and sustainability. The process not only preserves the natural nutrients of the seaweed but also embodies the association’s commitment to environmentally responsible methods, resulting in a clean, reliable product ready for local use and international markets.

Harvest & Transport

Seaweed is carefully harvested and weighed before being placed into bags that are shaken to remove excess water. The bags are balanced securely within the vessel and transported to the processing site using rinsed wheelbarrows to ensure cleanliness.

Rinsing & Soaking

The harvested seaweed is thoroughly rinsed to remove sand and debris, then soaked overnight in clean, freshwater-filled drums. The soaking water is discarded the following morning, and the seaweed is given a final rinse in preparation for drying.

Drying Process

Clean seaweed is spread evenly across drying racks and turned regularly to ensure uniform drying. It is clipped into smaller pieces, covered overnight with a tarp, and then uncovered, clipped, and turned daily until completely dried.

Final Processing

Once fully dried, the seaweed is removed from the racks, bagged, weighed, and prepared for proper storage or distribution to buyers and partners.