Abstract: The invention relates to a novel microalga species and to the use thereof for animal and/or human consumption and in the production of carotenoids. A novel strain of Scenedesmus has been isolated at the Las Palmerillas experimental station, Cajamar, identified as microorganisms that had not been previously registered by the University of Gottinghem and deposited within the Culture Collection of Alagae and Protozoa (CCAP) as Scenedesmus almeriensis. The novel strain, which can be used for animal and/or human consumption, produces large quantities of carotenoids, particularly lutein and beta-carotene. Scenedesmus almeriensis grows adequately in a wide range of temperatures from 10° C. to 40° C. at a pH of between 7 and 9.5 and can tolerate high concentrations of copper, up to 1 mg/L. The microalgal strain is grown in a 4000 L photobioreactor, into which the culture is inserted mechanically, and produces less than 4 mg of lutein per gram of dry material.