Teyke T
Institut für Zoologie (III) Biophysik, Johannes Gutenberg-Universität, Mainz, Federal Republic of Germany.
J Comp Physiol A. 1988 May;163(1):53-61. doi: 10.1007/BF00611996.
The data presented support the hypothesis that the flow field supplies the stimulus to the lateral line organ (LLO) in blind cave fish (Anoptichthys jordani). Two basic predictions from the theoretical analysis of the flow field were confirmed: (i) individual blind cave fish prefer particular swimming velocities, (ii) the velocity preferred depends on the cross-sectional area (CSA) of the fish, i.e. the smaller the CSA the higher the swimming velocity. This relationship was found also in experimentally blinded fish of other species. Furthermore, when placed in unfamiliar surroundings, blind cave fish swim at higher velocities than in familiar surroundings for a certain habituation period. The boundary layer which surrounds the fish attenuates the amplitude of the hydrodynamic stimulus because of its damping properties. Computations of the current velocity distribution within the boundary layer indicate that the stimulus for freestanding neuromasts is considerable even during swimming in open water.
所呈现的数据支持这样一种假设，即流场为盲穴鱼（墨西哥丽脂鲤）的侧线器官（LLO）提供刺激。对流场进行理论分析得出的两个基本预测得到了证实：（i）个体盲穴鱼偏好特定的游泳速度，（ii）偏好的速度取决于鱼的横截面积（CSA），即CSA越小，游泳速度越高。在其他物种的实验致盲鱼中也发现了这种关系。此外，当置于不熟悉的环境中时，盲穴鱼在一定的适应期内会比在熟悉的环境中以更高的速度游动。由于其阻尼特性，围绕鱼体的边界层会减弱水动力刺激的幅度。边界层内当前速度分布的计算表明，即使在开阔水域游泳时，对独立神经丘的刺激也是相当大的。
