TABLE 3.

Bioluminescence sighting distance estimates for three species of Sergestes sensu lato (s.l.) shrimps

Species	Aperture diameter (mm)	Emission intensity (photons/s)	Sighting distance (m)
Parasergestes armatus	0.42	108	0.11
		109	0.36
		1010	1.11
		1011	3.34
	0.83	108	0.22
		109	0.70
		1010	2.15
		1011	6.18
Allosergestes sargassi	0.36	108	0.10
		109	0.31
		1010	0.96
		1011	2.90
	0.72	108	0.20
		109	0.61
		1010	1.88
		1011	5.45
Deosergestes henseni	0.53	108	0.14
		109	0.45
		1010	1.40
		1011	4.14
	1.05	108	0.28
		109	0.89
		1010	2.68
		1011	7.57

Data indicate sighting distances (or visual ranges; m) over which bioluminescence is viewed by conspecifics against a dark background (with no ambient light). Models were generated considering two different aperature diameters for superposition eyes: half diameter and full diameter, as well as a range of bioluminescence emission intensities over four orders of magnitude.