Avaliação do potencial da Praia do Iguape-CE para o cultivo comercial de macroalgas marinhas

Abstract

Macroalgae play a significant role in global sectors such as food, pharmacy, and nutrition, showcasing broad applicability. The versatility of algae biomass allows its exploration in various market segments. Furthermore, algae cultivation is emerging as a promising solution to enhance the income of fishing-dependent communities for subsistence. This potential is particularly evident in coastal regions, such as the Northeast of the country, where coastal conditions are conducive to macroalgae cultivation. The present study aimed to analyze the implementation potential of algae cultivation on Iguape Beach. For potential analysis, a survey of macroalgae at the location, qualitative surveys of zoo- and phytoplankton, and monitoring of a landing site were conducted to better understand the activity generating income for the region's fishermen. The collections revealed the presence of a species of brown macroalgae and four red species. Due to the lack of an algae bank, the implementation of Kappaphycus alvarezii cultivation emerges as a viable solution to provide the region with a new source of income. Based on phytoplankton and zooplankton samples, a bloom of Planhtothrix sp and few other species were identified. The broader expansion of mariculture in Brazil would not only diversify income sources but also contribute to environmental sustainability by utilizing marine resources conscientiously and responsibly. With the Iguape beaches in need of new livelihoods and possessing all the necessary conditions for cultivation, Kappaphycus alvarezii stands out as a viable option for the area.