Table 3.

Factor loading matrix of investigated variables for Chlorophyta

Variable	PC 1	PC 2	PC 3	PC 4
Light Intensity, µmol photons m− 2 s− 1	-0.14	0.83	-0.07	0.35
Cultivation Time, day	0.18	-0.49	0.49	0.12
Lipid Content, % DW	0.50	0.39	0.26	-0.58
Lipid Productivity, mg L− 1 day− 1	-0.09	0.72	0.21	-0.20
Total Nitrogen, as NO3-N g L− 1	-0.85	-0.14	-0.27	-0.12
Total Phosphorus, as PO4-P g L− 1	0.25	-0.07	-0.81	-0.25
N:P	-0.89	-0.11	0.30	-0.20
Total variance, %	29.35	23.62	18.92	12.04