牙鲆仔鱼在混合饵料期的摄食能力及饵料选择性  

The feeding ability and selectivity of food of Paralichthys olivaceus larvae at the mixed food stage

作　　者：龚小玲[1] 鲍宝龙[1] 苏锦祥[1] 

机构地区：[1]上海水产大学生命科学与技术学院,上海200090

出　　处：《上海水产大学学报》2004年第1期30-35,共6页Journal of Shanghai Fisheries University

基　　金：国家自然科学基金项目(39470556)

摘　　要：研究了牙鲆仔鱼在轮虫、卤虫无节幼体混合饵料期的摄食能力及饵料选择性指标,结果表明,在开口后的第8天、第10天、第11天以轮虫为喜好性饵料,且最适的密度为10ind/mL,在开口后第10天对卤虫无节幼体开始有了一定的摄食能力;在开口后的第13天以后以卤虫无节幼体作为喜好性饵料;在开口后第15天开始放弃对轮虫的选择,可以以卤虫无节幼体作为唯一的食物来源;在轮虫、卤虫无节幼体混合饵料期,轮虫的最适密度是7～10ind/mL,卤虫无节幼体的最适密度是5～7ind/mL。The feeding ability and selectivity of food of Paralichthys olivaceus larvae at the mixed food stage were: the rotifer was the preference food on the 8^(th),10^(th) and 11^(th) days after Paralichthys olivaceus larvae opening mouth and the optimal density was the 10 ind/mL. On the 10^(th) day,Paralichthys olivaceus larvae had the ability to feed on nauplii of Artemia to some degree. On the 13^(th) day, Paralichthys olivaceus larvae regarded nauplii of Artemia as preference food. At the 13th day, Paralichthys olivaceus larvae started to give up rotifer, and could take nauplii of Artemia as the only food. At the mixed food stage of rotifer and nauplii of Artemia, the optimal rotifer and nauplii of Artemia densities should be 7～10 ind/mL and 5～7 ind/mL, respectively.

关 键 词：牙鲆 仔鱼 轮虫 卤虫无节幼体 混合饵料期 摄食能力 饵料选择性 

分 类 号：S963.1[农业科学—水产养殖]