Enrichment of Artemia urmiana nauplii in order to improvement quantity and quality of the Persian sturgeon fish larvae(Acipenser persicus) in stock enhancement

Sturgeon fishes are the most important species in the world base on caviar production and biodiversity. In order to promoting quantity and quality production of Acipenser persicus larvae in proliferation and propagation centers of sturgeon fishes and to survey possibility release larvae to the Caspian Sea directly at stock enhancement procedure, artemia naupli as live food enriched with an commercial emulsion ICES30/4 and ovarian sturgeon oil accomplish with 10, 20 and 30 percent of vitamin C during 12 and 24 h enrichment period and fed to sturgeon larvae for 20 days. Results showed the best quantity and quality 700 mg WW larvae  were obtain when they fed with ICES30/4, 20 % vitamin C during 24h enrichment and this treatment implemented the best survival rate when they exposed to salinity stress 120 ppt during 120 h.