Fatty Acid Composition of Neural Tissues of Normally Pigmented and Unpigmented Juveniles of Japanese Flounder Using Rotifer and Artemia Enriched in n-3 HUFA

The lipid class and fatty acid composition of brain and eyes of unpigmented and normally pigment ed Japanese flounder (Paralichthys olivaceus), reared using live food, were analysed.The neural tissues of normally pigmented and unpigmented fish showed a similar lipid class composition.However nor mally pigmented individuals had a higher content of polyunsaturated fatty acids in the polar lipid frac tion, specially arachidonic acid, eicosapentaenoic acid, and docosahexaenoic acid.Considering the im portance of docosahexaenoic acid in the composition of neural tissues, as well as eicosapentaenoic, and arachidonic acids in eicosanoid production, a relationship among vision, neural transmission, and pig mentation is suggested.