Table 1.

Population parameter from autotrophic and heterotrophic cultures of T. suecica (mean ± SD; n = 3). Asterisks denote significant differences (p < 0.05, Student’s t-test).

Population Parameter	Autotrophic	Heterotrophic
Cell density (cell mL−1)	2.0 × 106 ± 1.6 × 104	3.6 × 107 ± 7.7 × 104 *
Cell concentration (g L−1)	5.5 ± 0.5	10.2 ± 0.7 *
Specific growth rate (µ) (d−1)	0.3 ± 0.2	0.3 ± 0.2
Biovolume (µm3 mL−1)	8.8 × 108 ± 2.8 × 108	1.2 × 109 ± 3.0 × 108 *
Cell volume (µm3)	521 ± 33 *	30 ± 2