TABLE 3.

Contributions of three dominant groups of bacterioplankton to 16S rDNA in North Atlantic algal-bloom samples based on hybridizations with group-specific probes^a

Sample no.	North latitude	West longitude	Depth (m)	Location	% Contribution (±SD) of:
					Roseobacter	SAR86	SAR11
1	59°20′	19°00′	0	O	21.5 ± 0.2	15.9 ± 2.2	19.0 ± 1.4
2	59°20′	19°00′	10	O	55.9 ± 0.0	17.0 ± 1.4
3	59°20′	19°00′	50	O	37.6 ± 2.4	11.1 ± 2.3	16.4 ± 9.3
4	59°20′	19°00′	100	O	21.2 ± 1.1	9.4 ± 2.4	11.6 ± 0.4
5	59°20′	19°00′	200	O	0	10.9 ± 1.1	21.4 ± 3.7
6	59°30′	21°07′	0	I	16.5 ± 0.9
7	59°30′	21°07′	35	I	0
8	59°30′	21°07′	50	I	0
9	59°30′	21°07′	100	I	0
10	59°30′	21°07′	200	I	0
11	59°30′	21°07′	0	I	27.4 ± 2.8	8.7 ± 1.4	32.0 ± 4.2
12	59°30′	21°07′	10	I	31.2 ± 0.1
13	59°30′	21°07′	40	I	17.5 ± 3.9
14	59°30′	21°07′	100	I	0
15	59°30′	21°07′	200	I	0
16	59°28′	21°05′	0	I	34.3 ± 11.3
21	59°34′	21°07′	0	I	28.7 ± 12.6
26	59°34′	20°46′	0	I	31.5 ± 10.9
31	59°31′	21°00′	0	I	41.2 ± 12.2
36	59°31′	21°00′	0	I	24.1 ± 9.5
37	59°33′	21°02′	0	I	39.7 ± 10.8
47	60°26′	20°39′	0	I	48.5 ± 10.1	2.4 ± 0.2	3.4 ± 2.8
48	60°26′	20°39′	10	I	24.9 ± 1.1	0.8 ± 0	2.1 ± 2.0
49	60°26′	20°39′	50	I		0.3 ± 0	0
50	60°26′	20°39′	100	I	16.8 ± 8.3	0.5 ± 0.3
51	60°26′	20°39′	200	I	0	0.5 ± 0.1	0.6 ± 0.5
52	50°48′	20°57′	0	I	25.3 ± 10.7
53	50°48′	20°57′	10	I	31.1 ± 2.1
54	50°48′	20°57′	50	I	25.1 ± 1.5
55	50°48′	20°57′	100	I	0
56	50°48′	20°57′	200	I	0
57	60°00′	20°04′	0	O	35.8 ± 7.0
58	60°00′	20°04′	500	O	17.6 ± 0.8
59	59°53′	20°22′	0	O	43.0 ± 1.1
60	59°53′	20°22′	500	O	30.1 ± 2.2
61	59°46′	20°39′	0	O	40.2 ± 1.5
67	59°19′	21°48′	0	O	17.4 ± 0.6
68	59°19′	21°48′	500	O	37.0 ± 6.1
69	59°12′	22°05′	0	O	45.0 ± 0.6
70	59°12′	22°05′	500	O	12.4 ± 6.7
71	59°04′	22°22′	0	O	21.5 ± 5.1
72	59°04′	22°22′	500	O	22.9 ± 2.6

^aA location designation of I or O indicates the sample was collected inside or outside the E. huxleyi-dominated eddy. Five depth profiles are included. Standard deviations are calculated based on duplicate hybridization series.