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Outdoor mass microalgae production in Bahia Kino, Sonora, NW Mexico |
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| Authors: | Domenico Voltolina, Marí a del Pilar S nchez-Saavedra,Luz Marí a Torres-Rodrí guez |
| Affiliation: | aCentro de Investigaciones Biológicas del Noroeste, Laboratorio de Estudios Ambientales UAS-CIBNOR, P.O. Box 1132, Mazatlán, Sinaloa, C.P. 82000, Mexico bCentro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Departamento de Acuicultura, Kilómetro 107 Carretera Tijuana-Ensenada, Apartado Postal 2732, Ensenada, Baja California, C.P. 22860, Mexico cInstituto Nacional de la Pesca, Subdirección de Acuicultura, Pitágoras 1320, Col. Santa Cruz Atoyac, C.P. 03310, Mexico, Distrito Federal, Mexico |
| Abstract: | The diatom Chaetoceros muelleri was grown in outdoor mass cultures under the winter, spring and summer conditions of Bahia Kino, Sonora, NW Mexico. The solar irradiance in winter was close to 60% of that available in spring and summer, but the cell concentrations and the harvestable biomass were one order of magnitude higher in spring and summer than in winter. There was no difference between the biomass harvested after 2 and 3 days in winter and summer, whereas in spring it was higher after 3 days. The protein content was significantly lower in winter, and carbohydrates and lipids were higher in winter and spring. The number of cells and the amount of harvestable biomass of outdoor cultures of C. muelleri depend on the temperature prevailing in each season, which causes significant differences in growth rates and in biochemical composition. |
| Keywords: | Chaetoceros muelleri Outdoor cultures Light utilization Growth efficiency Biomass production Proximate composition |
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