The feeding habits and growth of larval, juvenile and young Lateolabrax japonicus

The feeding habits and the growth of larval,juvenile and young Lateolabrax japonicus are dealt with,The result shows that the larva began to feed about 140 h from hatching at water temperature of 15,5-16.5℃.The initial diet is small Brachionus,The naupliar larva of Chirocephalus can be fed when the larva attained about 10 mm in total length,The Cladocera can be fed when the total length of the larva was about 11 mm,Based upon the determination of 431 individuals,the percentage of stomach with food was 99,1%and the plump coefficient of stomath was 2,38%-16.4896 in the experimental conditions,The diel feeding amount was 45%-60% of the body weight of larval,juvenile and young fish,Rhythm of feeding intensity is obviously different during the day and night,the higher feeding intensity is at 16:00 and 20:00 p,m,Nothing can be fed in the darkness of night during the larval and juvenile stages,and the young fishes can feed a few in the same condition,There are certain differences in growth between the individuals of the larval,juvenile and young fish,The relationship between the feeding amount and body weight is expressed as y=0.1018+8.3261×10^-2x,that between the total length and body weight is expressed ω=1.6473×10^-3L^3.4743 that between total length and day age can be expressed as L_t=5.5242e^{1.9681×10-2D} and that between the body weight and the day age is expressed ω=0.5836e^{6.9208×10-2D}.