DHA Accumulation in the Polar Lipids of the Euryhaline Copepod Pseudodiaptomus inopinus and Its Transfer to Red Sea Bream Pagrus major Larvae

The euryhaline copepod Pseudodiaptomus inopinus play important roles in coastal waters as vectors of docosahexanoic (DHA) and eicosapentaenoic (EPA) acids for larval fish. While DHA EPA polar lipids (PLs) are more effective fish development than non-polar lipid forms (NLs), there is little knowledge how much these accumulated copepods from microalgae early larvae. We report PLs fatty acid profiles P. fed DHA-poor evaluate its significance a food source larvae Pagrus major , compared with DHA-enriched rotifers. Copepods rotifers were mixed diet three algal species ( Phaeodactylum tricornutum Tisochrysis lutea Pavlova lutheri ), addition DHA-supplemented Super Fresh Chlorella (SFC) Compared SFC, the mixture had higher but lower DHA. total each diet. Copepod specifically enriched their contents both On other hand, comparable between preys, indicating that selectively fortified PLs. Fish culture experiment showed growth those SFC-enriched Principal component analysis organism composition emphasized trophic modification by toward This study highlighted contribute to enhanced efficiently transferring via metabolism.