TABLE 1.

Selected algae species and their growth conditions.

	Chloromonas brevispina	Kremastochrysopsis austriaca	Dunaliella salina	Spirulina plantensis	Chlorella vulgaris
Classification	Snow (Psychrophilic)	Snow (Psychrophilic)	Halophilic	Mesophilic	Mesophilic
Media	M1b	M1b	2X Erd Mediumc	Enriched Seawater Mediumd	Proteose Mediume
Pressures (mbar)f	(OD750, cell cts)g 670 ± 20, 330 ± 20, 160 ± 20, 80 ± 2.5	(OD750)g 670 ± 20, 330 ± 20, 160 ± 20, 80 ± 2.5	(OD750, cell cts)g 670 ± 20, 330 ± 20, 160 ± 20, 80 ± 2.5	(OD750)g 670 ± 20, 330 ± 20	(OD750, cell cts)g 670 ± 20, 330 ± 20, 160 ± 20, 80 ± 2.5
Temperatures (°C)	4.0 ± 0.1	4.0 ± 0.1	20.8 ± 2.6 (10.0 ± 0.1 at 80 ± 2.5 mbar)	20.8 ± 2.6	20.8 ± 2.6 (10.0 ± 0.1 at 80 ± 2.5 mbar)
Light levels (aμmol m–2s–1)	62–70a	62–70a	62–70a	62–70a	62–70a
Incubation time	33–54 days	33–54 days	33–62 days	62 days	33–62 days

^aAs measured using a handheld digital lux meter (URCERI) ± 3% accuracy, where the 62–70 μmol of photons m^–2 s^–1 range was chosen based on previous work by Harrold et al. (2018).

^bM1 medium (Hoham et al., 1979).

^c2X Erdschreiber’s Medium (modified Erdschreiber’s medium, Foyn, 1934).

^dEnriched Seawater Medium (Lewin, 1979).

^eProteose Medium (Bold, 1949).

^fValues of uncertainties are based on the accuracy of the gauges monitoring the pressure.

^gBoth cell counts (cell cts) and OD₇₅₀ readings were measured for C. brevispina, D. salina and C. vulgaris and for K. austriaca and S. plantensis only OD₇₅₀ readings were measured due to their minimal growth.