Table 1.

Pearson correlation coefficients between light intensity and Fv/Fm ratio, O₂⁻ concentration (O₂⁻, chemiluminescence cell⁻¹), H₂O₂ concentration (H₂O₂, pmol cell⁻¹), H₂O₂ scavenging activity (CAT activity equivalence, unit cell⁻¹), and LPO concentration (LPO, pmol cell⁻¹). ^**, p < 0.01; ^*, p < 0.05.

		Chattonella marina var. antiqua	Chattonella marina var. marina
		(NIES-1)	(NIES-3)
Light intensity vs.	Fv/Fm ratio	−0.860 **	−0.936 **
	O2−	0.018	0.122
	H2O2	0.472 **	0.540 **
	CAT	−0.188	0.388 *
	LPO	0.390 *	0.448 **