TABLE 1.

Number of Anabaena strains isolated from each sampling station and data for environmental parameters^a

Station	Lat.	Long.	No. of strains isolated	Salinity (PSU)	Temp (oC)	Oxygen	PO4	PTOT	SiO4	NO3+NO2	NH4	NTOT
1a	59.1259	22.1894	1 (0)	6.66	15.86	6.35	0.02	0.44	8.20	0.02	0.22	20.80
1b	59.1259	22.1896	3 (0)	6.61	16.34	6.54	ND	0.42	8.75	0.01	0.08	20.45
2	59.1330	22.2851	2 (0)	NM	NM	NM	NM	NM	NM	NM	NM	NM
3	59.2400	22.2551	2 (0)	6.24	15.52	6.58	0.10	0.70	6.90	0.03	0.13	23.30
4	59.2802	22.3858	2 (0)	6.23	15.10	6.60	0.15	0.72	6.90	ND	0.07	25.25
5	59.3020	22.4031	2 (0)	6.25	15.53	6.58	0.11	0.60	6.85	0.01	0.10	22.20
6	59.3218	22.5014	3 (0)	6.23	14.99	6.66	0.17	0.62	7.00	0.02	0.18	22.25
7	59.2551	22.5206	3 (0)	6.40	16.44	6.18	0.02	0.59	7.70	0.01	0.08	23.10
8	59.1701	22.4700	1 (0)	6.67	16.52	6.65	ND	0.48	7.85	ND	0.09	21.85
9	59.3250	23.1000	2 (0)	6.30	15.08	6.58	0.18	0.75	7.60	ND	0.17	24.00
10	59.3882	23.3903	3 (0)	6.12	17.07	6.74	ND	0.67	6.70	ND	0.15	23.90
11	59.2901	23.5702	5 (0)	6.26	17.33	6.67	ND	0.68	7.45	0.01	0.13	24.55
12	59.3515	24.0700	7 (0)	5.96	16.78	7.02	ND	0.69	6.35	ND	0.15	25.90
13	59.4181	23.5798	1 (0)	5.93	16.61	6.84	ND	0.68	6.35	ND	0.15	24.60
14	59.5701	24.4500	5 (0)	5.64	17.03	6.70	ND	0.72	4.85	ND	0.18	30.85
15	60.0400	26.2087	7 (5)	5.03	15.80	6.81	0.02	0.62	2.80	ND	0.15	25.05

^aThe data shown are mean values measured from the values of depths 3 and 7 m, with the numbers of toxic strains shown in parenthesis. Oxygen, PO₄, PTOT, SiO₄, NO₃+NO₂, NH₄, and NTOT are expressed as milligrams per liter. Station 1 was sampled twice and is indicated as 1a and 1b. Lat., latitude; Long., longitude; PSU, practical salinity units; PTOT, total phosphorus; NTOT, total nitrogen; NM, not measured; ND, not detected (concentration was under the detection limit, which was 0.05 μM for PO₄-phosphorus, 0.1 μM for NO₃ + NO₂-nitrogen, and 0.06 μM for NO₃-nitrogen).