Table 4.

The results of the two-way ANOVA analysis of time and treatment of the red spectral range (~ 660–750 nm) external fluorescence spectral emissions produced by the green sea urchin Strongylocentrotus droebachiensis.

Variable	DF	Sum sq	Mean sq	F value	P value
Time	3	4.634	1.5448	32.179	<2e− 16
Treatment	2	0.171	0.0857	1.785	0.171
Interaction	6	0.368	0.0613	1.276	0.271
Residuals	168	8.065	0.0480	N/A	N/A