The protein content of various copepods varied between 52.4% and 57.6% of dry weight (DW),
and was significantly higher than in A. franciscana (41% in newly hatched nauplii and 34% after 24-h
enrichment).
There was a close relationship between the percent DHA content in 28–36-day-old halibut larvae
and the live food organisms they were fed on. High percent DHA content in the live food organism
resulted in a high percent DHA content in the fish larvae and vice versa. The relatively high DHA
content in the larvae was significantly reduced after 8 days when given enriched A. franciscana. For
the rest of the feeding period, the DHA content decreased steadily when fed on A. franciscana,
whereas it remained at the initial high level in larvae-fed copepods.
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