Flexible paddle sheds new light on speed: a novel method for the remote measurement of swim speed in aquatic animals
Flexible paddle sheds new light on speed: a novel method for the remote measurement of swim speed in aquatic animals
复制标题
柔性桨为速度提供了新的视角：一种远程测量水生动物游泳速度的新方法
DOI：
10.3354/esr00052
复制
发表时间：
2008
影响因子：
3.1
通讯作者：
K. Lucke
中科院分区：
文献类型：
--
作者：
E. Shepard;R. Wilson;N. Liebsch;F. Quintana;A. G. Laich;K. Lucke
在自由生活的动物中，速度是能量消耗的关键决定因素，特别是在海洋脊椎动物中，其中游泳的动力需求作为速度的立方函数增加。然而，目前用于测量自由生活的动物的游泳速度的装置具有局限性，包括过大的阻力、低分辨率、高失速速度（约1000 rpm）、高流速（0.3 ms-1）、成本、生物污损和对损害的敏感性。我们提出了一种速度传感器系统，利用对一个灵活的桨，弯曲的水在研究动物的流动的红外光的反射。在实验室试验中，这在速度范围（0.1至1.75 m s-1）内表现良好，失速速度为0.1 m s-1。本发明的桨系统的优点在于，它不受水柱中存在的物质的影响，价格便宜且易于更换。此外，该系统能够以无与伦比的分辨率记录速度数据，仅受采样频率的限制。来自自由生活的帝王鸬鹚Phalacrocorax atriceps上的设备部署的数据确定了游泳冲程内和之间的速度变化，并且还显示，随着浮力随着深度的增加而降低，每次踢腿会产生更大的速度。因此，柔性桨系统有望用于测量自由生活的水生动物的速度。
Speed is a key determinant of energy expenditure in free-living animals, and particu- larly in marine vertebrates, where power requirements for swimming increase as a cubed function of the speed. However, current devices used to measure swim speed in free-living animals have limita- tions, including excessive drag, low resolution, high stall speed (ca. 0.3 m s -1 ), cost, biofouling and susceptibility to damage. We present a speed sensor system that utilises the reflectance of infrared light against a flexible paddle that bends in relation to the flow of water over the study animal. In lab- oratory trials, this performed well across a range of speeds (0.1 to 1.75 m s -1 ), and had a stall speed of 0.1 m s -1 . The advantages of this present paddle system are that it is impervious to the presence of matter in the water column, is inexpensive and easily replaceable. Furthermore, the system is able to record speed data at an unparalleled resolution, limited solely by sampling frequency. Data from deployments of devices on free-living imperial cormorants Phalacrocorax atriceps identified changes in speed within and between swim strokes, and also showed that greater speed was generated per kick as the buoyancy decreased with depth. As such, the flexible paddle system holds promise for the measurement of speed in free-living, aquatic animals.
加州海狮游泳：形态测量、阻力和能量。
DOI：
10.1242/jeb.131.1.117
发表时间：
1987
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Feldkamp,SD
通讯作者：
Feldkamp,SD