不同光照强度对红鳍东方鲀稚鱼摄食的影响

Feeding of juvenile Takifugu rubripes under different illuminances

为研究不同光照强度对红鳍东方鲀(Takifugu rubripes)稚鱼摄食的影响,试验测量了红鳍东方鲀在不同光照强度下的摄食量。结果表明,在400 lx时红鳍东方鲀稚鱼摄食量达到最高,随着光照强度的降低,在1000~400 lx时,摄食量总体呈现出上升趋势;在400~100 lx时,摄食量呈现出下降趋势。在400 lx时,摄食率和摄食效率均随时间延长逐渐下降;在1000、700、100 lx时,随着时间的延长摄食率和摄食效率均呈现出先上升后下降的趋势,最大值均出现在40 min。

In order to explore the feeding of juvenile Takifugu rubripes under different illuminances,the feeding amount of Takifugu rubripes under different illuminances were measured.The results showed that the highest feeding was observed under 400 lx,and the feeding showed an upward trend at 1000~400 lx with the decrease of illuminance.For 400~100 lx,the feeding showed a downward trend.At 400 lx,the feeding rate and feeding efficiency decreased gradually with the time prolonging.At 1000,700 lx and 100 lx,feeding rate and feeding efficiency both showed a upward and then downward tendency with the extension of time,and the maximum value appeared at 40 min.