Spain's macroalgae cultivation makes up less than 0.002% of the country's total aquaculture, according to the Spanish Aquaculture Business Association (Apromar). The administrative complexities and lack of tradition and experience have hindered the growth of this sector. Most macroalgae in Spain is collected naturally, but there are initiatives to cultivate species for food or bioactive compounds. The global production of macroalgae is the second largest aquaculture activity globally, with potential for human consumption and environmental benefits.