Table 1 Relative fatty acid proportions (%), with respect to the total amount of FAs, of GD1_P (Western Scheldt) and H. hermesi (Håkon Mosby mud volcano), GD1 under varying experimental conditions and of E. coli

C12:0

–

–

0.71

–

0.34

0.31

0.32

0.25

0.49

0.31

–

C13:0

0.04 (±0.08)

–

0.69

1.20

1.43

0.78

1.58

0.59

0.50

–

1.82

C14:0

4.82 (±1.27)

0.68 (±0.06)

3.67

1.12

1.73

1.12

2.49

0.84

1.56

1.22

6.21

(ante)isoC15:0

4.67 (±0.73)

0.33 (±0.06)

8.64

10.71

12.53

7.30

13.65

5.53

4.38

2.95

34.71

C15:0

0.63 (±0.06)

0.1 (±0.1)

0.73

0.13

–

0.33

0.35

0.29

0.29

0.41

1.04

(ante)isoC16:0

0.89 (±0.42)

0.06 (±0.05)

0.34

0.66

1.35

0.77

0.50

0.65

1.06

0.11

8.21

C16:0

9.12 (±1.07)

3.76 (±0.56)

8.03

2.01

3.22

2.88

3.77

2.53

3.78

4.82

27.33

(ante)isoC17:0

3.12 (±0.67)

–

6.05

3.83

4.29

2.71

4.57

2.60

2.25

3.46

9.04

C17:0

0.73 (±0.15)

0.35 (±0.02)

1.00

0.87

0.75

0.55

1.27

0.42

0.75

0.52

1.32

C18:0

4.14 (±0.16)

3.11 (±0.76)

3.64

1.79

2.75

1.69

1.89

2.05

3.93

2.17

3.82

C20:0

0.28 (±0.03)

0.39 (±0.05)

–

–

–

–

–

–

–

–

–

C22:0

–

0.08 (±0.04)

–

–

–

–

–

–

–

–

–

\(\sum {\text{SFA}}\)

28.43 (±2.79)

8.85 (±1.33)

33.50

22.33

28.39

18.45

30.39

15.76

18.99

15.97

93.50

C14:1ω5

–

0.58 (±0.09)

–

–

–

–

–

–

–

–

–

C15:1ω5

0.69 (±0.09)

–

1.17

2.24

1.86

1.40

1.53

1.11

0.60

0.45

2.08

C16:1ω7

9.07 (±2.68)

23.56 (±1.35)

16.04

12.10

9.16

15.69

14.39

16.60

10.34

17.36

–

C17:1ω7

1.92 (±0.16)

0.35 (±0.13)

2.19

6.41

4.17

3.09

4.78

2.50

3.76

2.70

3.32

C18:1ω12

–

0.33 (±0.08)

–

0.66

0.43

0.30

0.17

0.68

–

0.35

–

C18:1ω9

19.21 (±6)

19.52 (±0.46)

6.31

2.67

3.92

3.15

5.82

3.07

4.13

5.94

1.10

C18:1ω7

4.25 (±3.43)

2.19 (±0.27)

12.34

10.17

12.09

12.92

15.04

11.70

14.77

10.22

–

C20:1ω9

3.16 (±0.95)

3.93 (±0.46)

0.66

1.23

1.60

1.60

0.74

1.79

2.10

1.12

–

C22:1ω9

2.32 (±0.33)

1.27 (±0.15)

1.03

0.65

0.57

0.36

0.63

0.98

0.55

0.53

–

C24:1ω9

1.46 (±0.74)

2.18 (±0.21)

0.56

1.19

0.98

1.23

0.26

1.61

1.13

0.94

–

\(\sum {\text{MUFA}}\)

42.71 (±2.52)

53.91 (±1.60)

40.31

37.32

34.77

39.75

43.36

40.04

37.38

39.60

6.50

C16:2ω6

–

1.14 (±0.2)

–

–

–

–

–

–

–

–

–

C18:2ω6

19.4 (±3.31)

15.95 (±0.45)

20.64

28.83

28.02

31.38

21.18

32.73

32.45

35.36

–

C18:3ω3

1.47 (±0.75)

2.51 (±0.55)

–

–

–

–

–

–

–

–

–

C18:3ω6

–

1.72 (±0.52)

–

–

–

–

–

–

–

–

–

C20:2ω6

4.33 (±0.37)

4.05 (±0.16)

3.31

6.55

5.89

6.58

2.17

7.79

7.53

6.75

–

C20:3ω6

–

0.21 (±0.02)

–

–

–

–

–

–

–

–

–

C20:4ω6

2.99 (±0.38)

3.53 (±0.22)

2.23

4.59

2.94

3.63

2.77

3.44

3.24

2.32

–

C20:5ω3(EPA)

1.29 (±0.24)

3.90 (±0.23)

–

0.37

–

0.20

0.13

0.23

0.41

–

–

C22:6ω3(DHA)

–

4.23 (±0.43)

–

–

–

–

–

–

–

–

–

\(\sum {\text{PUFA}}\)

29.49 (±3.97)

37.24 (±1.15)

26.19

40.35

36.84

41.80

26.24

44.20

43.63

44.43

0