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Table 5. Dissolved methane concentration in seawater. Results are given in nanomoles methane per liter seawater (nM).

Station Depth (m) Methane (nM)
1 2 46.8
1 5 49.3
1 10 77.7
1 15 71.7
1 25 111.1
1 32 104.8
1 32 109.4
2 2 33.5
2 5 33.6
2 10 40
2 15 46.1
2 20 52
2 25 65.4
2 32 67.4
2 32 67.6
3 2 38.2
3 5 42.5
3 15 39.7
3 20 43.8
3 25 47.7
3 35 49.5
3 35 49.3
4 2 41.9
4 5 52.9
4 15 56
4 20 53.6
4 35 52.2
4 35 53
5 2 11
5 5 9.1
5 15 13.4
5 20 23.1
5 33 31.1
5 33 33
6 2 17.5
6 5 12.2
6 20 37
6 28 46.5
6 28 46.1
7 2 22.9
7 5 21.3
7 15 34.7
7 25 42
7 33 46.7
7 33 44.7
8 2 12.4
8 10 12.3
8 20 12.5
8 30 14.3
8 35 14.1
9 2 12.1
9 5 1.3
9 10 18.3
9 15 14.4
9 25 17.4
9 35 17.1
9 35 16.7
10 2 11.2
10 10 11.3
10 20 11.9
10 30 13.4
10 40 17.7
10 50 18.2
10 59 17.7
10 59 17.8
11 2 12.5
11 15 15.5
11 25 13.4
11 35 11.5
11 35 11.7
12 2 6
12 10 5.8
12 20 5.6
12 40 6.1
12 60 7.8
12 70 7.5
13 2 10.1
13 10 11.6
13 20 10.5
13 40 8
13 60 11.5
13 79 8.1
13 95 7.3
13 95 8
14 2 10.4
14 10 10.4
14 20 9.7
14 40 7.7
14 60 8.2
14 80 8.2
14 100 4.7
14 120 3.8
14 140 3.5
14 160 3.6
14 175 3.1
14 175 3.1
15 2 8.9
15 10 11.6
15 40 9.4
15 60 12.7
15 80 17.9
16 2 4.8
16 10 4.6
16 20 5.4
16 40 7.5
16 60 12.1
16 75 14.3
18 2 8.2
18 10 9
18 20 9.3
18 40 11.9
18 60 10.8
18 80 11.7
18 90 11.7
18 90 11.8
19 2 9.7
19 10 10.3
19 20 9.4
19 30 10.3
19 40 10.6
19 50 14.8
19 60 16
19 70 15.6
19 80 12.4
19 80 12.3
20 2 5
20 10 6.1
20 50 9.5
20 75 23.1
20 95 56.3
21 2 9.8
21 10 10.3
21 20 8.9
21 40 8.4
21 60 9.9
21 75 23.2
21 90 27.8
21 90 29.1
22 2.1 8.7
22 10 8.1
22 20 7.4
22 40 7.5
22 40 6.7
22 60 9.5
22 80 24.2
22 85 23.1
23 2 9
23 10 9.5
23 20 9.6
23 40 14.5
23 60 39.3
23 79 132.2
23 79 140.4
24 2.2 9.2
24 10 8.4
24 20 10.4
24 60 17.8
24 70 45.8
24 75 48.6
25 2.2 8.8
25 10 8.2
25 20 8
25 40 9.8
25 60 14
25 80 14.1
25 92 23.2
26 2.2 5
26 20 3.7
26 40 3.4
26 80 3.1
26 120 2.1
26 160 2.2
26 200 2.2
26 240 2.4
26 240 2.2
26 280 4
26 320 6.6
26 365 5.8
27 2.1 9.3
27 10 7.4
27 20 6.8
27 40 3.7
27 80 5.3
27 120 2.7
27 160 2.2
27 200 2.1
27 280 2.9
27 320 7.5
27 350 8.2
29 2 6.7
29 20 3.1
29 40 2.8
29 80 2.4
29 100 3
29 120 3
29 160 2.1
29 200 3.8
29 240 7.4
29 280 5.6
29 320 6.3
29 358 8.3
30 2 12.3
30 10 9.2
30 20 7.6
30 50 5.4
30 100 4
30 100 4.1
30 150 7.4
30 200 9.9
30 256 9.5
31 2 21.7
31 25 6.6
31 50 6.1
31 75 6.1
31 100 7.7
31 150 8.1
31 175 8.3
31 190 9.2
32 2 7.6
32 25 6.8
32 50 5.9
32 75 6.9
32 100 7.2
32 125 7.7
32 175 8.7
32 200 10.2
32 205 10.5
33 2 7.9
33 10 8.1
33 20 7.8
33 40 7.4
33 60 7.6
33 80 5.4
33 100 5.3
33 120 5.6
33 128 6.6
34 2 6.8
34 10 6.6
34 20 6.7
34 40 7.5
34 60 7.4
34 100 5.2
34 119 6.8
34 119 7.3
35 5 5.6
35 10 5.9
35 20 5.8
35 40 6.4
35 60 9.1
35 80 14.2
35 100 17.5
35 120 15.7
35 144 11.6
36 2 5.3
36 10 5.8
36 20 5.6
36 40 7
36 60 10.4
36 81 12.5
36 100 13.9
36 125 14.5
37 2 7.1
37 20 8.3
37 40 7.9
37 60 8
37 80 8.8
37 100 8.6
37 120 7.6
37 132 7
38 2 4.1
38 10 5
38 25 5.6
38 50 6.8
38 75 14.4
38 100 12.1
38 125 9.7
38 150 10
38 175 11.7
38 194 10.4
39 2 6.1
39 20 5.5
39 40 4.5
39 60 4
39 80 5.7
39 100 4.5
39 120 5.9
39 140 5.1
39 160 10.4
39 180 10.9
39 200 16.7
39 215 21.5
40 2 6
40 25 4.9
40 50 9.7
40 75 12.8
40 100 11.7
40 125 13.2
40 150 8.1
40 175 12.7
40 200 12.7
40 215 14.2
41 2 10
41 20 9
41 40 7.7
41 80 5.6
41 120 6
41 160 6.1
41 200 4.7
41 240 4.7
41 280 4
41 320 3.9
41 350 4.1
41 350 3.8
42 2 10.2
42 10 10.6
42 20 8.1
42 40 7.4
42 60 7.1
42 80 9.4
42 100 10.8
42 109 10.9
44 2 10.7
44 20 10.6
44 40 9.3
44 80 5.6
44 120 10.6
44 160 1.8
44 200 2.5
44 240 2.5
44 280 3.5
44 320 3.8
44 369 3.2
44 369 3.3
45 2 6.2
45 20 10.4
45 40 13.5
45 80 7.7
45 120 9.4
45 160 3.1
45 200 6
45 240 5
45 320 5.5
45 360 6
45 370 6
46 2 5.9
46 10 6.5
46 25 4
46 50 2.8
46 75 3.7
46 100 6.3
46 125 12.2
46 150 7.2
46 175 6.9
46 200 7.5
46 221 7.7
48 2 8.3
48 25 6.6
48 50 5.7
48 75 9.7
48 100 34.2
48 125 26.8
48 150 26.9
48 175 28.1
48 213 24.2
49 2 6.5
49 25 5.5
49 50 4.2
49 75 3.6
49 100 11.9
49 125 14.8
49 150 14.6
49 175 22.9
49 180 24
50 2 6.9
50 10 7.5
50 25 6.9
50 50 5.1
50 100 20.1
50 125 23
50 150 13.4
50 175 26.2
50 200 21.8
50 224 18.9
50 224 18.6
51 2 4.5
51 25 4.6
51 50 7
51 75 9.8
51 100 13.1
51 125 13.8
51 150 13.5
51 175 12.9
51 200 12.8
51 225 9.1
51 250 13.4
52 0 10.6
52 10 14.1
52 20 15.1
52 30 16.5
52 40 17.7
52 50 27.6
52 60 25.6
52 60 22.8
53 2 40.8
53 5 43.9
53 10 46.5
53 20 45.5
53 24 46.7
53 24 45.6
54 2.2 9.1
54 10 9.1
54 20 9
54 50 4.7
54 100 2.1
54 150 2.3
54 200 2.4
54 250 2.3
54 300 2.1
54 350 4.4
54 400 5.4
54 449 10.2
55 2 11
55 20 8.9
55 50 6.7
55 100 2.7
55 200 1.7
55 250 1.8
55 300 2.3
55 400 2
55 450 2.6
55 493 3.3
56 2 15.2
56 10 19.5
56 30 26.8
56 40 25.8
56 60 21.8
57 2.2 15.2
57 10 21.6
57 20 30.1
57 30 28.6
57 40 25.4
57 50 23.6
58 2 14.1
58 10 16.8
58 20 21
58 30 28.1
58 40 21
58 45 25.2
59 2 69
59 15 78.2
59 20 119.9
59 27 125.2
60 2 71.8
60 10 75.7
60 15 75.4
60 20 68.3
60 25 84.1
60 35 160.4
61 2 46.2
61 10 61.1
61 20 90.8
61 30 93.7
61 40 100.7
61 50 87.6
61 60 82.5
62 2 12.5
62 10 11
62 25 11.9
62 50 41.4
62 75 27.1
62 100 10.3
62 125 8.3
62 150 11.8
62 175 12.8
62 200 43.8
62 224 20.3
63 2.2 53.4
63 10 60
63 15 58.5
63 20 68.4
63 25 73.1
64 1.7 59.5
64 8 77.9
64 12 84.2
64 16 93.1
64 20 97.6
64 24 105.6
64 28 123
64 32 127.7
64 40 126.5
64 44 119.8
64 48 142.9
65 2 18.3
65 10 36.9
65 20 52.1
65 40 39.1
65 60 49.2
65 80 41.6
65 100 27.2
66 2 10.6
66 10 10.8
66 25 21.5
66 50 22.8
66 75 13.8
66 100 8.4
66 125 7.8
66 150 10.6
66 150 12.5
66 175 17.1
66 200 9.6
66 219 8.7
67 2 69.3
67 5 64.3
67 10 66.9
67 15 69.5
67 20 79.8
67 25 88.4
67 30 113.4
67 35 124.9
67 40 140.3
67 45 142.5
67 50 140.8
69 10 21.2
69 15 23.8
69 30 28.6
69 35 28.7
70 2.1 14.2
70 10 15.9
70 20 19.6
70 35 26.8
70 50 39.8
71 1.7 15.2
71 10 14.8
71 20 16.4
71 40 27.5
71 60 35.1
72 2.2 16.1
72 10 15.3
72 20 15.9
72 40 18.6
72 60 24.7
72 70 23.4
73 2.1 10.7
73 10 13.3
73 20 14.3
73 40 21.8
73 60 28.7
73 80 27
73 92 25.5
74 2 15.6
74 10 16.4
74 20 17.9
74 35 18
74 50 17.3
74 65 26.4
74 68 26.9
75 2 21.2
75 10 45.6
75 15 47.6
75 30 49.8
75 35 50.2
76 2.1 5.8
76 10 9.5
76 20 11.1
76 35 10.2
76 50 15.9
76 65 48
76 75 58
78 2 16.2
78 10 23.2
78 15 24.4
78 24 22.1
79 2 15.2
79 10 18.5
79 20 26.9
79 35 26.7
79 45 26.7
80 2 9.2
80 10 10.6
80 15 13.2
80 30 19.8
80 45 24.2
80 60 25.2
81 2 6.4
81 10 6.5
81 20 6.7
81 40 11.2
81 60 19.5
81 83 20.6
82 2 5.8
82 10 6.5
82 25 5.7
82 50 14.3
82 75 36.2
82 95 33.8
83 2 6.2
83 10 6.5
83 20 8
83 25 9
83 30 7.8
84 2 5.6
84 10 5.7
84 30 5.7
84 40 5.8
84 50 6.1
85 2 5.9
85 10 0.6
85 20 4.7
85 40 6.5
85 60 7.5
85 69 8.7
86 10 12.8
86 20 17.1
86 35 24.3
86 50 20
86 65 22.2
86 70 22.5
87 2 5.7
87 10 5.4
87 20 4.1
87 40 4
87 60 4
87 80 4.4
87 95 5.7
88 2.1 18.8
88 2.1 16.3
88 10 30.9
88 15 34.8
88 30 29.4
88 39 32.6
89 2.1 20.3
89 10 20.9
89 15 20.4
89 30 19.6
89 45 20
89 60 13.4
89 65 12.2
90 2 17.3
90 5 17.2
90 10 18.2
90 20 15.4
90 30 13.2
91 2.1 17.7
91 15 18.7
92 2.1 14.7
92 10 16.2
92 15 17.3
92 20 17.2
93 2.1 4.9
93 10 4.4
93 20 7.7
93 40 13.3
93 60 13.1
93 80 10.2
93 100 4.8
93 120 3.1
93 140 2.9
93 145 2.9
94 1.7 6.6
94 10 7.3
94 20 7.8
94 50 6
94 100 3.2
94 150 1.9
94 200 2
94 275 2.1
94 350 1.4
94 400 1.5
94 473 2.9
95 2 3.4
95 20 6.1
95 40 6.3
95 60 9.5
95 100 12.1
95 120 11.8
95 140 12.1
95 160 9.5
95 180 8.2
95 200 7.7
95 217 11.2
96 2 5.8
96 10 6.5
96 20 6.8
96 40 7.9
96 60 7.3
96 80 5.3
96 100 5.3
96 140 3.8
96 180 2
96 220 2.1
96 260 2
97 2.1 6.7
97 20 7.5
97 40 8.7
97 60 7.2
97 80 5.9
97 80 6.1
97 100 2.8
97 120 2.4
97 160 1.8
97 200 1.7
97 240 2.1
97 275 2
98 2.2 5.4
98 10 6.2
98 20 7.5
98 50 2.2
98 150 1.7
98 200 1.8
98 250 1.9
98 300 1.7
98 350 1.5
98 356 1.6
99 2.2 5.3
99 10 5.8
99 20 5.8
99 50 8.6
99 100 2.1
99 150 1.7
99 200 2.1
99 250 1.6
99 300 1.7
99 350 2.3
99 370 2.2

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