Sargassum is a genus of brown algae found mainlyin tropical and subtropical waters, on rocks, preferably in places not exposed to strong waves, in the infralittoral region and on the fringe of the sub-infralittoral region known for forming large "floating forests" due to a small structure that is found along its entire stalk, whose name is pneumatocyst (floating vesicle). It has stems between 20 and 200 cm in length, a structure for fixation, called an appressorium, short cylindrical branches, which grow from the appressorium and abundant lateral branching, which grows from the short branches. In order to reproduce, Sargassum has flattened structures similar to leaves, which allows oogamic sexual reproduction, whose name is receptacle. After the growth of the lateral branches, the male gametes are released and fertilize the female gamete that is on the receptacle surface, after fertilization the branches become weak and end up detaching from the plant. This algae also has high ecological importance, as it serves as a habitat for several marine species. It is also of economic importance as it is a good indicator of water quality, as it has a high sensitivity to changes in water quality.