Table 4. Growth rate (μ in day^-1), maximum cell concentration (A in log) and latency time (λ in day) (triplicate mean ± SD) for all species and culture conditions and the corresponding two-way ANOVA results (n = 3).

Species	Statistical Results	Light	Nitrogen	μ (day-1)	A (log)	λ (day)
E. paludosa		LL	N+	0.29 ± 0.06	2.56 ± 0.12	2.84 ± 0.47
			N-	0.30 ± 0.01	2.26 ± 0.10	2.80 ± 0.71
		ML	N+	0.35 ± 0.01	2.48 ± 0.02	1.45 ± 0.28
			N-	0.30 ± 0.02	2.00 ± 0.11	1.70 ± 0.65
		HL	N+	0.37 ± 0.01	2.61 ± 0.38	1.65 ± 0.16
			N-	0.28 ± 0.02	2.33 ± 0.15	1.26 ± 0.60
	Two-way ANOVA
	Light conditions	P		0.090	0.114	<0.001***
	N concentration	P		0.003**	<0.001***	0.824
	Interaction	P		0,020*	0.597	0.582
N. alexandrina		LL	N+	0.67 ± 0.02	4.62 ± 0.09	4.38 ± 0.07
			N-	0.73 ± 0.02	4.65 ± 0.30	4.42 ± 0.08
		ML	N+	1.05 ± 0.10	4.41 ± 0.17	3.45 ± 0.38
			N-	0.83 ± 0.11	4.61 ± 0.25	1.51 ± 0.52
		HL	N+	1.05 ± 0.07	4.16 ± 0.16	3.56 ± 0.09
			N-	1.16 ± 0.13	4.40 ± 0.20	2.65 ± 0.41
	Two-way ANOVA
	Light conditions	P		<0.001***	0.037*	<0.001***
	N concentration	P		0.694	0.131	<0.001***
	Interaction	P		0.012*	0.646	<0.001***
Staurosira sp.		LL	N+	0.69 ± 0.18	2.81 ± 0.96	2.65 ± 0.14
			N-	0.61 ± 0.08	1.75 ± 0.13	2.60 ± 0.31
		ML	N+	0.46 ± 0.05	2.50 ± 0.56	1.65 ± 0.50
			N-	0.56 ± 0.24	2.08 ± 0.05	2.66 ± 0.16
		HL	N+	0.49 ± 0.12	2.35 ± 0.19	2.22 ± 1.51
			N-	0.57 ± 0.04	1.80 ± 0.47	3.37 ± 0.69
	Two-way ANOVA
	Light conditions	P		0.217	0.674	0.293
	N concentration	P		0.647	0.012*	0.054
	Interaction	P		0.497	0.499	0.296

Significance levels: *** for p < 0.001; ** for p < 0.01 and * for p < 0.05. Remarkable value in bold: for details see text.