Swimming by microscopic organisms in ambient water flow
Swimming by microscopic organisms in ambient water flow
复制标题
DOI：
10.1007/s00348-007-0371-6
复制
发表时间：
2007-11-01
影响因子：
2.4
通讯作者：
Reidenbach, Matthew A.
中科院分区：
文献类型：
--
作者：
Koehl, M. A. R.;Reidenbach, Matthew A.
当微生物在其自然栖息环境中游泳时，它们同时会被周围的水流、波浪和湍流所携带。因此，要了解游泳如何影响极小生物在环境中的移动，我们需要研究它们在真实水流条件下的行为。此处所描述工作的目的是开展一系列不同尺度的综合野外和实验室测量，使我们能够记录下暴露于（1）水流速度和（2）影响其行为的化学信号分布的真实时空模式下的微生物行为的高分辨率视频。我们在研究各种底栖海洋动物的微小幼虫在流动水中的游泳行为时一直在开发这些方法。在浅海栖息地，与波浪相关的振荡水流运动可能会在影响微小幼虫轨迹的尺度上对水流产生巨大影响。
When microscopic organisms swim in their natural habitats, they are simultaneously transported by ambient currents, waves, and turbulence. Therefore, to understand how swimming affects the movement of very small creatures through the environment, we need to study their behavior in realistic water flow conditions. The purpose of the work described here was to develop a series of integrated field and laboratory measurements at a variety of scales that enable us to record high-resolution videos of the behavior of microscopic organisms exposed to realistic spatio-temporal patterns of (1) water velocities and (2) distributions of chemical cues that affect their behavior. We have been developing these approaches while studying the swimming behavior in flowing water of the microscopic larvae of various bottom-dwelling marine animals. In shallow marine habitats, the oscillatory water motion associated with waves can make dramatic differences to water flow on the scales that affect trajectories of microscopic larvae.