1 23 Journal of Applied Phycology ISSN 0921-8971 J Appl Phycol DOI 10.1007/s10811-014-0420-5 Comparison of continuous and day time only mixing on Tetraselmis suecica (Chlorophyta) in outdoor raceway ponds Maria C. Cuello, Jeffrey J. Cosgrove, Ankitha Randhir, Ashiwin Vadiveloo & Navid R. Moheimani