黑脊倒刺鲃仔稚鱼摄食的习性与生长

研究了养殖条件下黑脊倒刺仔稚鱼摄食习性与生长,结果表明:仔鱼4日龄开口摄食,全长9.0~9.99mm;仔稚鱼的摄食具有明显的昼夜节律性;仔稚鱼个体间生长速度具有一定的差异性;其体重与摄食量的关系为y=0.064 4X+1.433 1,全长与日龄的关系为L=8.861 4×exp(0.042 9T),体重与日龄的关系为W=3.736×exp(0.151 3T),全长与体重的关系为W=1.7×10-3×L3.531 4。

Feeding Habits and Growth of Larval and Juvenile Spinibarbus caldwelli

The feeding habits and growth of larval and juvenile Spinibarbus caldwelli was studied.The results showed that the four-day-old larva began to feed during the total length of the larva was about 9.0-9.99 mm,and feeding rhythm is obviously different during the day and the night.There wer certain differences in growth between the individuals of larval and juvenile fish.The relationship between feeding amount and body weight was expressed as y=0.064 4x+1.433 1,that between total length and day age could be expressed as L=8.861 4×exp(0.042 9T),that between body weight and day age could be expressed as W=3.736×exp(0.151 3T) and that between body weight and total length was expressed W=1.7×10~(3)×L~(3.531 4).