Table 1 The top 0–2 cm sediment layer was collected from distinct sediment cores from 59 stations during May–June 2019 from the north (latitude 64.65300) to south Baltic Sea (latitude 55.00903)
Station | Region | Depth (m) | Salinity | °C | O2 mg/L | TN (%) | TC (%) | δ15N (‰) | δ13C (‰) |
|---|---|---|---|---|---|---|---|---|---|
1 | Bothnian Bay | 27 | 2.6 | 4.9 | 10.3 | 0.1 | 1.4 | 3.2 | − 25.0 |
2 | Bothnian Bay | 37 | 2.8 | 3.3 | 10.4 | 0.1 | 1.0 | 3.1 | − 25.7 |
3 | Bothnian Bay | 32 | 2.7 | 3.9 | 10.5 | 0.1 | 0.7 | 4.4 | − 25.3 |
4 | Bothnian Bay | 122 | 3.7 | 0.9 | 9.5 | 0.4 | 4.5 | 4.7 | − 25.4 |
5 | Bothnian Bay | 106 | 3.6 | 1.0 | 9.9 | 0.5 | 5.5 | 4.7 | − 25.8 |
6 | Bothnian Bay | 90 | 3.5 | 1.3 | 9.4 | 0.5 | 4.9 | 4.3 | − 25.8 |
7 | Bothnian Bay | 75 | 5.8 | 3.2 | 7.2 | 0.3 | 2.4 | 4.0 | − 24.2 |
8 | Bothnian Bay | 89 | 5.9 | 3.3 | 6.9 | 0.4 | 3.3 | 4.3 | − 24.7 |
9 | Bothnian Bay | 85 | 5.9 | 3.3 | 7.0 | 0.4 | 3.0 | 4.4 | − 24.5 |
10 | Bothnian Sea | 17 | 5.3 | 2.9 | 2.4 | 0.8 | 7.3 | 2.2 | − 22.3 |
11 | Bothnian Sea | 46 | 5.4 | 2.2 | 7.6 | 0.4 | 3.5 | 3.5 | − 23.7 |
12 | Bothnian Sea | 63 | 5.6 | 2.6 | 6.8 | 0.2 | 1.9 | 3.5 | − 23.4 |
13 | Bothnian Sea | 30 | 5.3 | 2.0 | 7.8 | 0.6 | 5.3 | 2.4 | − 21.9 |
14 | Bothnian Sea | 79 | 5.5 | 2.4 | 7.2 | 0.3 | 2.6 | 4.3 | − 24.3 |
15 | Bothnian Sea | 68 | 5.4 | 2.1 | 7.8 | 0.3 | 2.8 | 4.1 | − 24.3 |
16 | Bothnian Sea | 67 | 5.3 | 1.9 | 9.3 | 0.3 | 2.9 | 4.1 | − 23.9 |
17 | Bothnian Sea | 49 | 5.1 | 2.7 | 8.5 | 0.4 | 3.4 | 3.8 | − 24.1 |
18 | Bothnian Sea | 70 | 5.2 | 2.1 | 10.0 | 0.4 | 3.5 | 3.8 | − 24.5 |
19 | Bothnian Sea | 77 | 5.2 | 2.3 | 10.1 | 0.4 | 3.3 | 4.1 | − 24.4 |
20 | Stockholm | 23 | 5.2 | 5.2 | 8.9 | 0.6 | 5.2 | 3.6 | − 23.9 |
21 | Stockholm | 121 | 6.8 | 2.8 | 10.8 | 0.4 | 3.4 | 3.7 | − 24.3 |
22 | Stockholm | 110 | 6.8 | 2.8 | 8.0 | 0.5 | 3.9 | 3.7 | − 24.4 |
23 | Stockholm | 24 | 4.2 | 9.7 | 11.1 | 0.7 | 5.1 | 4.7 | − 22.6 |
24 | Stockholm | 62 | 5.7 | 4.7 | 7.8 | 0.2 | 1.6 | 3.5 | − 22.6 |
25 | Stockholm | 40 | 4.9 | 5.6 | 10.4 | 0.4 | 2.7 | 4.0 | − 22.8 |
26 | Sörmland | 22 | 5.8 | 8.1 | 11.3 | 0.8 | 6.0 | 4.5 | − 22.8 |
27 | Sörmland | 40 | 6.2 | 4.6 | 9.5 | 0.8 | 5.6 | 4.1 | − 23.5 |
28 | Sörmland | 37 | 6.1 | 4.8 | 10.3 | 0.8 | 5.7 | 3.9 | − 23.4 |
29 | Sörmland | 38 | 6.3 | 4.0 | 9.3 | 0.6 | 4.4 | 4.4 | − 23.4 |
30 | Sörmland | 44 | 6.3 | 4.2 | 10.4 | 0.2 | 1.5 | 4.1 | − 23.3 |
31 | Sörmland | 53 | 7.5 | 4.3 | 8.4 | 0.6 | 4.0 | 4.3 | − 23.4 |
32 | Sörmland | 47 | 7.4 | 4.0 | 7.4 | 0.6 | 4.2 | 4.1 | − 23.3 |
33 | Sörmland | 59 | 6.7 | 4.2 | 9.6 | 0.5 | 3.5 | 4.1 | − 23.7 |
34 | Dead Zone (Sörmland) | 79 | 10.0 | 5.8 | 0.3 | 0.8 | 6.4 | 3.0 | − 24.5 |
35 | Dead Zone (Sörmland) | 78 | 10.0 | 5.8 | 0.5 | 0.5 | 4.5 | 3.4 | − 24.9 |
36 | Dead Zone (Sörmland) | 125 | 9.8 | 6.3 | 0.5 | 1.1 | 9.4 | 2.8 | − 25.1 |
37 | Östergötland | 13 | 5.8 | 11.0 | 10.1 | 0.9 | 7.1 | 4.5 | − 22.0 |
38 | Östergötland | 13 | 5.6 | 11.5 | 10.8 | 1.1 | 7.6 | 4.7 | − 21.9 |
39 | Östergötland | 17 | 5.7 | 11.6 | 10.5 | 1.0 | 7.4 | 5.0 | − 19.9 |
40 | Östergötland | 20 | 5.7 | 10.2 | 8.7 | 1.1 | 7.8 | 4.9 | − 22.5 |
41 | Östergötland | 20 | 6.1 | 9.0 | 10.6 | 1.2 | 8.3 | 4.6 | − 21.9 |
42 | Östergötland | 39 | 5.7 | 5.9 | 11.5 | 1.0 | 7.1 | 4.4 | − 22.6 |
43 | Östergötland | 33 | 5.6 | 6.8 | 11.5 | 0.9 | 6.6 | 4.4 | − 22.5 |
44 | Östergötland | 25 | 5.6 | 8.4 | 11.1 | 0.8 | 6.1 | 4.0 | − 22.5 |
45 | Östergötland | 32 | 5.6 | 7.9 | 11.3 | 0.8 | 6.0 | 4.0 | − 22.5 |
46 | Östergötland | 33 | 5.7 | 7.8 | 11.0 | 1.2 | 8.1 | 3.9 | − 23.0 |
47 | Östergötland | 29 | 5.7 | 8.7 | 11.2 | 0.8 | 5.9 | 4.0 | − 22.1 |
48 | Dead Zone (Mid-South) | 79 | 8.7 | 5.8 | 0.3 | 1.1 | 8.2 | 3.5 | − 23.5 |
49 | Dead Zone (Mid-South) | 111 | 11.6 | 7.3 | 0.3 | 1.8 | 16.8 | 3.0 | − 21.2 |
50 | Dead Zone (Mid-South) | 71 | 15.2 | 8.6 | 1.1 | 0.6 | 4.9 | 3.3 | − 25.1 |
51 | Dead Zone (Mid-South) | 80 | 15.1 | 8.8 | 0.2 | 0.7 | 5.8 | 3.1 | − 24.8 |
52 | Southern Baltic | 91 | 16.2 | 8.7 | 0.5 | 0.7 | 6.7 | 3.3 | − 24.1 |
53 | Southern Baltic | 41 | 12.3 | 5.8 | 5.3 | 0.2 | 1.7 | 4.6 | − 23.6 |
54 | Southern Baltic | 43 | 12.5 | 6.5 | 7.6 | 0.8 | 6.1 | 4.0 | − 23.9 |
55 | Southern Baltic | 41 | 12.8 | 6.8 | 6.4 | 0.4 | 2.9 | 4.2 | − 23.5 |
56 | Southern Baltic | 41 | 11.7 | 5.9 | 5.2 | 0.4 | 3.1 | 4.0 | − 23.7 |
57 | Southern Baltic | 45 | 11.9 | 7.4 | 8.6 | 0.8 | 6.7 | 4.0 | − 23.0 |
58 | Southern Baltic | 39 | 12.4 | 9.0 | 9.6 | 0.2 | 1.9 | 4.1 | − 22.5 |
59 | Southern Baltic | 48 | 15.0 | 8.1 | 8.5 | 0.7 | 6.1 | 4.3 | − 22.7 |