Table I. The biochemical and nutrient parameters in medium during chronic nitrate depletion and after nitrate addition.

The experiment was repeated two times. Nitrate concentration was measured two times, and data from the second experiment are presented here.

Day	Salinity	pH	NH4+	NO2−	PO43−	NO3−
	µs cm−1		µmol L−1
4	28.9	8.08	0.56	16.74	0.31	848.39
5	29.5	8.25	0.56	11.52	0.37	650
7	29.5	8.23	<0.56	6.30	0.26	251.61
10	30.1	8.22	<0.56	<0.22	0.41	133.87
12	25.2	7.86	<0.56	0.22	0.79	9.84
14	26	7.86	<0.56	0.65	0.57	0
21	30	8.05	<0.56	0.22	0.66	0
26	29.5	8.01	<0.56	0.22	0.52	0
28	31	7.77	<0.56	0.22	0.41	0
13	27.6	8.29	1.11	0.22	0.42	0
16	28.7	8.19	1.11	0.87	1.23	0
19	28.9	8.25	22.22	0.87	1.39	0.97
24	27.1	8.30	0.56	0.22	0.49	0
31	30	8.30	0.56	0.22	0.31	0
32	30.3	8.09	1.67	116.52	1.17	246.77
33	30.9	8.17	2.22	7.39	0.36	0
34	28.9	8.27	2.22	2.17	0.42	0
35	30.7	7.99	1.11	1.74	0.60	0.65