Abstract: In this study，food selectivity and food intake for initial food algae with different sizes including Isochrysis zhanjiangensis，Dunaliella salina and Platymonas helgolondica were investigated in brine shrimp Artemia parthenogenetica Aibi Lake.Results showed that the brine shrimp had the maximum food intake of 30.6×104cells/(ind.·h)for I.zhanjiangensis， 16.6×104cells/(ind.·h)for D.salina and 6.7×104cells/(ind.·h)for P.helgolondica，indicating that the higher food intake was observed in the brine shrimp fed the food alga particle with smaller size.There was significantly higher food intake of the initial feeding brine shrimp than that in other experimental groups when they were exposed to the mixtures of two and three food algae with the same density(P＜0.05)， especially the brine shrimp fed D.salina showing very significantly higher food intake(P＜0.01)，indicating that the brine shrimp Aibi Lake habitually ingested initial food after acclimation to initial food.The food selection index revealed that the brine shrimp Aibi Lake fed the mixture of two or three species of food algae prefered to I.zhanjiangensis，followed by D.salina，and finally P.helgolondica.The findings will provide references with selection of food algae during brine shrimp culture.
2018, Vol. 33 
