Development of a Variable Flow Seawater Flume and High- Speed Video Imaging System

我们建议发展一个可变流量的海水水槽和高速视频成像系统，用于研究移动流体中的摄食，扩散和运动。生态学和进化生物学系的一个海水水槽和视频系统将协助海洋生态学组（Bertness和Witman）和脊椎动物形态学组（Goslow和Swartz）的研究/教育方案。水流在调节生态相互作用中起着重要作用。然而，这种中介的具体细节在很大程度上是未知的，它们的阐明仍然是伯特尼斯、维特曼和他们的学生的主要研究重点。具有可变水流速和水量的海水水槽以及记录快速发生的生物反应的手段，将能够研究内波、可变食物供应和温度对悬浮物摄食无脊椎动物种群的影响。 该系统还将有助于研究海洋捕食者在受控条件下对增加的水流的反应方式。 脊椎动物也受到其物理环境的影响，这反映在身体形状和运动方式上。物理参数塑造形态的机制是Goslow，Swartz及其学生研究计划的重点。例如，一群海鸟，“翅膀推动”的潜水员，用他们的翅膀在水下和空中“飞行”;一种能力，需要一些进化的妥协，如果不是两种媒介。在鱼类和海洋哺乳动物中，存在着相当大的身体形态、鳍形、骨骼结构和运动模式的多样性，只有通过仔细的操作研究才能理解。一个水槽与控制流的特性，这是仪器监测的水柱和调查中的生物体的运动运动将提供一个重点培养学生在现代操纵的研究，旨在确定复杂的形式的演变。

We propose to develop a variable flow sea water flume and high-speed video imaging system for studies of feeding, dispersal and locomotion in moving fluids. A sea water flume and video system in the Department of Ecology and Evolutionary Biology will assist the research/education programs of the Marine Ecology group (Bertness and Witman) and the Vertebrate Morphology group (Goslow and Swartz). Water flow plays an important role in mediating ecological interactions. The specifics of this mediation are largely unknown, however, and their elucidation remain a major research focus of Bertness,Witman, and their students. A sea water flume with variable water flow rate and volume and a means for documenting rapidly occurring biological response will enable studies of the effects of internal waves, variable food supply and temperature on populations of suspension-feeding invertebrate animals. The system will also facilitate studies of the way(s) marine predators respond to increasing water flow under controlled conditions. Vertebrate animals are also affected by their physical environment which is reflected in body shape and locomotor style. The mechanisms by which morphology is shaped by physical parameters is the focus of the research programs of Goslow, Swartz and their students. For example, a group of seabirds, the 'wing-propelled' divers, use their wings to 'fly' underwater as well as in the air; an ability which necessitates some evolutionary compromises for one if not both media. Among fishes and marine mammals, considerable diversity of body form, fin shape, bone structure and locomotor pattern exists which can only be understood by careful manipulative studies. A flume with controlled flow characteristics which is instrumented to monitor the water column and the locomotor movements of the organisms under investigation will provide a focus for training students in modern manipulative studies designed to determine the evolution of complex forms.