Rhodotorula is a pigmented yeast, part of the Basidiomycota phylum, quite easily identifiable by distinctive orange/red colonies when grown on SDA (Sabouraud's Dextrose Agar).
Research into the pigmentation of rainbow trout flesh using Rhodotorula in prepared diets was investigated in partnership with the Newfoundland and Labrador Institute of Fisheries and Marine Technology Aquaculture Unit.