S. Goldst. & Belsky emend. T. Booth & C. E. Mill. 
Schizochytrium is a genus of unicellular protists found in coastal marine habitats in the family Thraustochytriaceae. They are assigned to the stramenopiles, a group which also contains kelp and various microalgae.
There are several stages in the life cycle. The feeding form has a stiff, rounded body with cellular extensions used in feeding. Cells can transform into mobile flagellated cells with stiff tripartite hairs typical of stramenopiles. Cells can also grow and divide to form a cluster of cells which may become a sorus that produces biflagellate zoospores.
Relation to humans
Certain species produce large amounts of docosahexaenoic acid and are grown commercially for production of this oil for animal feeds, biomass and biofuels. In 2016 juvenile Nile tilapia were given a food containing dried Schizochytrium in place of fish oil. When compared to a control group raised on regular food, they exhibited higher weight gain and better food-to-growth conversion, plus their flesh was higher in healthy omega-3 fatty acids.
- Rinka Yokoyama & Daiske Honda (2007). "Taxonomic rearrangement of the genus Schizochytrium sensu lato based on morphology, chemotaxonomic characteristics, and 18S rRNA gene phylogeny (Thraustochytriaceae, Labyrinthulomycetes): emendation for Schizochytrium and erection of Aurantiochytrium and Oblongichytrium gen. nov.". Mycoscience. 48 (4): 199–211. doi:10.1007/s10267-006-0362-0.
- Honda, Daiske; Yokochi, Toshihiro; Nakahara, Toro; Erata, Mayumi; Higashihara, Takanori (April 1998). "Schizochytrium limacinum sp. nov., a new thraustochytrid from a mangrove area in the west Pacific Ocean". Mycological Research. 102 (4): 439–448. doi:10.1017/S0953756297005170.
- Yue Jiang, King-Wai Fan, Raymond Tsz-Yeung Wong & Feng Chen (2004). "Fatty acid composition and squalene content of the marine microalga Schizochytrium mangrovei". Journal of Agricultural and Food Chemistry. 52 (5): 1196–1200. doi:10.1021/jf035004c. PMID 14995120.
- Coxworth, Ben (June 6, 2016). "Scientists take the fish out of fish food". www.gizmag.com. Retrieved 2016-06-08.
- Sarker, Pallab K.; Kapuscinski, Anne R.; Lanois, Alison J.; Livesey, Erin D.; Bernhard, Katie P.; Coley, Mariah L. (2016-06-03). "Towards Sustainable Aquafeeds: Complete Substitution of Fish Oil with Marine Microalga Schizochytrium sp. Improves Growth and Fatty Acid Deposition in Juvenile Nile Tilapia ( Oreochromis niloticus )". PLOS ONE. 11 (6): e0156684. doi:10.1371/journal.pone.0156684. ISSN 1932-6203.