The abnormal growth rate appeared when daily ration was below 3.30% of body weight,implied that Japanese halfbeak may get other food resources besides supplied net zooplankton.

• 当日粮水平低于 3 .；30%25时；小鳞鱼箴生长表现异常；意味着它可能利用了网采浮游动物以外的其它食物源