Barraza, José Enrique, Julio Alberto Armero-Guardado, and Zobeyda Marisol Valencia de Toledo. “The Red Tide Event in El Salvador, August 2001-January 2002”. Revista de Biología Tropical 52, no. S1 (September 1, 2004): 1–4. Accessed May 7, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/26489.