Seaweed is a $6 billion industry worldwide. Different types of seaweed are harvested for a variety of uses including fertilizer, food ingredients, and nutritional supplements. With more people looking to grow seaweed, otherwise known as kelp, marine microalgae or sea vegetable, as a business or for supplemental income, the University of Maine-based Maine Sea Grant read more Pilot Project to Stimulate Seaweed Production on Mussel Farms in Maine