QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

Help viewing high resolution images Return to article

Fig. 3. Geometry of the particle detection and capture in three dimensions. The direction of the current is indicated by empty arrows. A fish's initial detection response is triggered at T_L, and the fish's first visible reaction to an approaching food particle occurs at T_R (i.e. response latency occurs between T_L and T_R). The arrow between T_L and T_R indicates the distance covered by the particle during the response latency. The food particle is captured at T_C, and the distance covered between T_R and T_C corresponds to Y_forward. Various particles are drawn at T_C because the particle at T_C may be upstream or downstream relative to the fish's eyes at T_R (data not shown). X'_lateral is the lateral distance in the horizontal plane. X_lateral is the overall lateral distance between the fish's eyes and the axis of motion of the prey along the current. Z_vertical and D_total are the vertical distance and the total distance, in three dimensions, between fish's eyes and the particle at T_R, respectively. Alpha () is the angle between the current direction and D_total. Beta (ß) is the angular size of the plankton as seen by the fish.

Return to article