Arribadas algae from Pacheco beach, Ceará, Brazil

• Autor(a) principal: Ferreira, Gabriela de Sousa
• Data de Publicação: 2020
• Outros Autores: Brito, Paulo Ovídio Batista de, Aderaldo, Francisco Ícaro Carvalho, Carneiro, Pedro Bastos de Macedo, Rocha, Adriana Marques, Gondim, Franklin Aragão
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Verde de Agroecologia e Desenvolvimento Sustentavel
• Texto Completo: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/6472
• topic: Macroalgae; Organic fertilizer; Plant nutrition; Macroalgas; Fertilizante orgánico; Nutrición vegetal; Macroalgas; Adubo orgânico; Nutrição vegetal

Macroalgae are important beings in their habitats, because they have great ecological relevance. In the aquatic ecosystems, they are source of nutrients and the main photosynthetic organisms. The Pacheco beach in Caucaia, a municipality in the metropolitan region of Fortaleza-CE, composes the coastal plain of the Brazilian Northeast. In this region, it is common for the macroalgae that have detached from their substrate to accumulate during low tide, called algae arribadas. This aim of this work was to identify the algae arribadas community of Praia do Pacheco by evaluating its nutritional potential for the formulation of fertilizer for plants. In this perspective, two manual collections were carried out during the low tide. One in April 2017 and the other in October 2018. The samples were identified and, subsequently, three of the species of higher incidence were analyzed in terms of macronutrients and micronutrients. It was obtained eighteen taxa, being: fourteen red algae, two green algae and two brown algae. The species found in greater quantity were Hypnea pseudomusciformis, Gracilaria cearensis and Ulva fasciata. When analyzed, it was found that there are high nutrients with potential for agricultural purposes. The studied region presented a rich environment in macroalgae and in biomass that must be used in a conscious way to guarantee its sustainability.