When the red shadow of the prey appears underneath the water, the harpooners hold up their tridents. A supervisor stands behind the harpooners, and by making gestures and ringing a bell he tells the pilot to go forward at full speed, to stop, to turn left or right.
當獵物的紅影在水面下出現，鏢魚者執起三叉魚鏢，指揮者站在鏢魚者身後，以手勢、鐘聲告訴駕駛全速前進、停止或左右方向。