Table 1.

List of symbols.

ρ	density of the medium surrounding the prey
α	form coefficient for flow speed profile
Af	frontal area of an object
Aw	wetted area of an object
Cam	coefficient of the added mass
Cd	drag coefficient
Far	force due to acceleration reaction
Fd	force due to drag
Fpg	force due to pressure gradient of fluid field
Lx	effective length of prey in the x-direction
t	time
tmax	time of peak flow speed
tnul	time of flow initiation at the mouth
u	fluid speed
um	fluid speed at the mouth aperture
umax	peak fluid speed at the mouth aperture
ux	fluid speed at a point x (outside the mouth aperture)
V	volume of the prey
x	absolute position
x′	distance in front of the mouth aperture (relative to the fish)