Click on image to view larger version.

Fig. 1. Flume set-up. The experimental set-up consisted of the Recirculating
Wave-Current Flume (RWCF) set to produce either 5 cm s-1
unidirectional flow or 0.5 Hz waves with a velocity range of -5 cm
s-1 to 9 cm s-1 at a height of 2 cm, the height of the
stomatopod antennules. A laser light sheet fluoresced the rhodamine-spiked
odor plume, so that the structure of the odor plume could be recorded by the
two planar laser induced fluorescence (PLIF) cameras filming through the
bottom of the flume and the top camera filming through the water's
surface.