The contents of total lipids and total fatty acids in the two rotifer
larval diets (Brachionus-Low and Brachionus-High) were similar
whereas the Acartia nauplii (stages III–IV) exhibited lower lipid
and fatty acid contents (Table 4, Fig. 1A). The three live feed diets
analysed showed a PL content of around 7% of DW (range 6.6–7.3%)
(Fig. 1B), corresponding to 42% of total lipids (range 41–43%) for
the rotifer diets and 73% for the Acartia nauplii (Fig. 1C). TAG were
the second most dominant lipid class of the rotifer diets, but TAG
were only present in low amounts in Acartia nauplii, which instead contained more free fatty acids (FFA). Cholesterol was slightly more
abundant in rotifers than in the copepod nauplii