OCCURRENCE AND DOMINANCE OF AN INVASIVE TOXIN PRODUCING MARINE CYANOBACTERIA INTO MANGROVE ENVIRONMENT OF THE POTENGI RIVER ESTUARY, IN NATAL, RIO GRANDE DO NORTE STATE, BRAZIL. Arq. Cien. Mar. 2017;38(1-2):19-27. doi:10.32360/acmar.v38i1-2.6387