or other yolk components were preferentially used for energy. Total percentage of MUFA decreased during
development, which indicated MUFA were the primary lipid catabolized for energy during embryonic development.
Total percentage of PUFA increased during development, driven largely by an increase in 22:6(n-3). Temperature
did not influence percent lipid content or percent MUFA at any development stage, and had inconsistent
effects on percent SFA and percent PUFA during development. Thus, lake whitefish embryos appear to be highly
adapted to low temperatures, and do not alter lipids in response to temperature within their natural incubation
conditions.