【摘要】 对中华乌塘鳢Bostrichthys sinensis (Laceped)仔、稚,幼鱼的游泳、摄食、探索等行为生态方面进行实验观察,发现中华乌塘鳢仔、稚、幼鱼在不同发育阶段的游泳行为有五种类型:底壁旋转、阶梯型游泳、滑翔运动、巡游和疾游。摄食方式有两种类型:摄食时呈现特殊的姿态和不呈现特殊姿态。中华乌塘鳢仔、稚鱼的摄食姿态属于“鲐鱼型”。仔、稚鱼在探索食物时主要以巡游速度游泳。探索过程中,除视觉之外,味觉、触觉等可能起着重要的作用。文中对这些行为的生态学意义也进行了讨论。更多还原

【Abstract】 This paper presents the experimental observations on the behaviour ecology of Bostrichthys sinsnsis larvae,juveniles and young.The larvae show five types of movements in different development stages: a. rotation on the bottom, b. ladderwise swimming, c,gliding, d. cruising and e.speeding.Larvae must assume a striking posture on feeding. Juveniles assume a striking posture on feeding adult copepoda,but do not so on feeding rotifera or Arte-mia salina.The young have protecting food behaviour and cave dwelling behaviour.While looking for prey,the larvae, juveniles and young swim mainly at cruising speed.Lastly,morphological characteristics, ecological habits,swimming speeds,prey preception and recognition,and feeding patterns are remarked in this paper.更多还原