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Table 5 Fatty acids (% of total FAC ± SD) in muscle of juvenile eels reared on different diets; “sat” = saturated fatty acids; “unsat” = unsaturated fatty acids; “PUFA” = poly unsaturated fatty acids; a = t-test identified a significant difference (P < 0.05) between freshwater (Rutilus rutilus, Chironomidae larvae, and Gammarus pulex) and marine treatments (Pellets, Clupea harengus, Mysis spec., and Euphausia superba)

From: Dietary effects on fatty acid composition in muscle tissue of juvenile European eel, Anguilla anguilla (L.)

 

Eel Rutilus (N = 12)

Eel Ch.larvae (N = 12)

Eel Gammarus (N = 12)

Eel Pellets (N = 12)

Eel Clupea (N = 12)

Eel Crangon (N = 12)

Eel Mysis (N = 12)

Eel Euphausia (N = 12)

16:0a

13.76 ± 0.74

12.28 ± 0.75

12.60 ± 1.10

15.69 ± 1.51

13.89 ± 1.10

15.77 ± 0.53

15.41 ± 1.40

14.30 ± 0.89

16:1 n7a

5.11 ± 0.26

4.26 ± 0.26

4.65 ± 0.63

5.69 ± 0.61

5.04 ± 0.33

4.90 ± 0.62

5.23 ± 0.29

5.10 ± 0.46

16:2 n4

0.22 ± 0.00

0.20 ± 0.01

0.24 ± 0.02

0.29 ± 0.03

0.22 ± 0.05

0.23 ± 0.02

0.24 ± 0.02

0.24 ± 0.04

16:3 n4

0.24 ± 0.03

0.20 ± 0.01

0.24 ± 0.03

0.26 ± 0.03

0.24 ± 0.02

0.22 ± 0.04

0.23 ± 0.02

0.24 ± 0.01

17:0a

0.30 ± 0.02

0.31 ± 0.02

0.35 ± 0.05

0.36 ± 0.06

0.31 ± 0.03

0.43 ± 0.05

0.36 ± 0.02

0.35 ± 0.04

17:1 n7a

0.26 ± 0.01

0.23 ± 0.01

0.24 ± 0.01

0.27 ± 0.02

0.28 ± 0.02

0.30 ± 0.02

0.25 ± 0.01

0.26 ± 0.01

18:0

3.50 ± 0.33

3.31 ± 0.24

4.02 ± 0.98

3.28 ± 0.12

2.83 ± 0.25

4.28 ± 1.67

3.46 ± 0.49

3.19 ± 0.43

18:1 n9

28.87 ± 1.86

26.13 ± 1.53

26.70 ± 1.77

26.54 ± 1.98

25.26 ± 1.51

29.28 ± 1.54

26.14 ± 0.49

26.67 ± 1.01

18:1 n7

0.46 ± 0.02

0.45 ± 0.02

0.45 ± 0.02

0.46 ± 0.03

0.45 ± 0.02

0.44 ± 0.06

0.48 ± 0.01

0.47 ± 0.02

18:2 n6a

4.42 ± 0.35

4.24 ± 0.16

4.98 ± 0.33

4.40 ± 0.10

3.93 ± 0.11

4.32 ± 0.50

4.20 ± 0.30

4.40 ± 0.13

18:3 n6

0.12 ± 0.01

0.17 ± 0.12

0.16 ± 0.06

0.11 ± 0.03

0.10 ± 0.02

0.11 ± 0.02

0.12 ± 0.02

0.13 ± 0.01

18:3 n4

0.18 ± 0.01

0.17 ± 0.00

0.21 ± 0.03

0.26 ± 0.05

0.19 ± 0.01

0.18 ± 0.01

0.18 ± 0.01

0.18 ± 0.01

18:3 n3

0.72 ± 0.05

0.51 ± 0.09

0.73 ± 0.06

0.72 ± 0.10

0.62 ± 0.06

0.63 ± 0.10

0.66 ± 0.09

0.67 ± 0.18

18:4 n3

0.51 ± 0.06

0.50 ± 0.13

0.55 ± 0.02

0.69 ± 0.15

0.57 ± 0.03

0.48 ± 0.09

0.59 ± 0.11

0.63 ± 0.05

20:0

0.25 ± 0.02

0.93 ± 1.16

0.36 ± 0.06

0.24 ± 0.06

0.24 ± 0.03

0.41 ± 0.10

0.27 ± 0.06

0.29 ± 0.13

20:1 n9a

17.91 ± 1.01

20.02 ± 0.93

18.52 ± 1.80

13.61 ± 5.48

17.62 ± 0.90

13.54 ± 4.57

17.17 ± 1.70

17.47 ± 1.03

20:2 n6a

0.46 ± 0.01

0.45 ± 0.03

0.47 ± 0.01

0.44 ± 0.02

0.42 ± 0.01

0.42 ± 0.06

0.43 ± 0.01

0.40 ± 0.02

20:3 n6a

0.97 ± 0.10

1.03 ± 0.06

1.15 ± 0.22

0.89 ± 0.04

0.69 ± 0.12

0.97 ± 0.06

0.86 ± 0.09

0.89 ± 0.08

20:4 n6 (ARA)

0.82 ± 0.04

0.76 ± 0.07

0.86 ± 0.18

0.69 ± 0.06

0.74 ± 0.11

0.94 ± 0.13

0.72 ± 0.08

0.71 ± 0.08

21:0

0.02 ± 0.01

0.02 ± 0.01

0.02 ± 0.00

0.03 ± 0.00

0.03 ± 0.01

0.03 ± 0.00

0.03 ± 0.01

0.02 ± 0.01

20:3 n3

0.19 ± 0.02

0.13 ± 0.03

0.15 ± 0.02

0.16 ± 0.02

0.19 ± 0.02

0.13 ± 0.03

0.16 ± 0.02

0.14 ± 0.01

20:4 n3

1.52 ± 0.09

1.47 ± 0.22

1.46 ± 0.08

1.68 ± 0.19

1.60 ± 0.07

1.22 ± 0.08

1.49 ± 0.10

1.60 ± 0.10

20:5 n3 (EPA)a

3.04 ± 0.52

3.17 ± 0.77

3.18 ± 0.11

4.34 ± 0.89

4.13 ± 0.28

3.69 ± 0.59

4.04 ± 0.51

3.87 ± 0.36

22:0

0.03 ± 0.01

0.04 ± 0.00

0.06 ± 0.02

0.03 ± 0.01

0.03 ± 0.01

0.05 ± 0.00

0.03 ± 0.01

0.03 ± 0.01

22:1 n9a

6.25 ± 0.76

7.56 ± 0.52

7.31 ± 1.40

6.06 ± 0.79

7.00 ± 1.12

5.63 ± 1.12

5.67 ± 0.42

5.89 ± 0.48

22:2 n6a

0.23 ± 0.03

0.27 ± 0.05

0.24 ± 0.05

0.36 ± 0.05

0.31 ± 0.03

0.22 ± 0.05

0.28 ± 0.03

0.30 ± 0.03

22:5 n3 (DPA)

1.98 ± 0.10

2.31 ± 0.33

2.17 ± 0.42

2.42 ± 0.34

2.48 ± 0.41

2.30 ± 0.63

2.25 ± 0.07

2.33 ± 0.17

22:6 n3 (DHA)a

7.25 ± 0.89

8.34 ± 1.85

7.35 ± 0.88

9.64 ± 1.53

10.13 ± 0.70

8.40 ± 1.95

8.73 ± 0.83

8.82 ± 0.49

24:0

0.07 ± 0.02

0.10 ± 0.01

0.09 ± 0.03

0.10 ± 0.01

0.10 ± 0.02

0.13 ± 0.02

0.09 ± 0.02

0.10 ± 0.02

24:1 n9a

0.33 ± 0.03

0.43 ± 0.04

0.50 ± 0.11

0.29 ± 0.09

0.36 ± 0.12

0.35 ± 0.11

0.24 ± 0.04

0.24 ± 0.04

∑sata

17.98 ± 0.59

17.02 ± 1.07

17.54 ± 1.71

19.76 ± 1.42

17.49 ± 1.26

21.17 ± 2.28

19.69 ± 1.98

18.33 ± 1.52

∑1 unsata

59.20 ± 1.41

59.08 ± 2.61

58.37 ± 1.94

52.92 ± 3.95

56.01 ± 0.86

54.43 ± 1.68

55.17 ± 1.83

56.14 ± 2.27

∑2 unsat

5.33 ± 0.31

5.15 ± 0.22

5.94 ± 0.29

5.50 ± 0.13

4.89 ± 0.16

5.19 ± 0.59

5.15 ± 0.29

5.35 ± 0.12

∑3 unsata

2.42 ± 0.09

2.22 ± 0.16

2.63 ± 0.21

2.41 ± 0.13

2.03 ± 0.15

2.24 ± 0.07

2.21 ± 0.08

2.25 ± 0.13

∑4 + unsata

15.13 ± 1.55

16.55 ± 3.16

15.57 ± 1.24

19.45 ± 2.98

19.65 ± 1.30

17.03 ± 3.35

17.82 ± 1.65

17.97 ± 0.76

∑unsata

82.07 ± 0.57

83.01 ± 1.07

82.51 ± 1.71

80.28 ± 1.43

82.58 ± 1.29

78.90 ± 2.25

80.35 ± 1.96

81.71 ± 1.50

sat:unsata

0.22 ± 0.01

0.21 ± 0.02

0.21 ± 0.03

0.25 ± 0.02

0.21 ± 0.02

0.27 ± 0.04

0.25 ± 0.03

0.23 ± 0.02

∑n3a

15.22 ± 1.59

16.44 ± 3.30

15.58 ± 1.21

19.64 ± 3.05

19.71 ± 1.30

16.86 ± 3.26

17.92 ± 1.66

18.06 ± 0.96

∑n6a

7.02 ± 0.45

6.92 ± 0.14

7.87 ± 0.59

6.90 ± 0.17

6.21 ± 0.15

6.98 ± 0.67

6.62 ± 0.44

6.84 ± 0.26

n3:n6a

2.19 ± 0.35

2.37 ± 0.44

2.01 ± 0.21

2.85 ± 0.41

3.20 ± 0.25

2.41 ± 0.48

2.71 ± 0.31

2.65 ± 0.23

∑C16 PUFA

0.46 ± 0.03

0.40 ± 0.02

0.48 ± 0.04

0.56 ± 0.06

0.46 ± 0.04

0.45 ± 0.05

0.47 ± 0.03

0.48 ± 0.04

∑C18 PUFA

5.95 ± 0.25

5.59 ± 0.35

6.63 ± 0.23

6.19 ± 0.33

5.41 ± 0.10

5.72 ± 0.44

5.75 ± 0.27

6.01 ± 0.21

∑C20 PUFAa

6.99 ± 0.53

7.01 ± 0.91

7.27 ± 0.37

8.20 ± 1.15

7.78 ± 0.43

7.37 ± 0.84

7.70 ± 0.63

7.62 ± 0.27

∑C22 PUFAa

9.47 ± 0.96

10.92 ± 2.16

9.76 ± 1.25

12.42 ± 1.91

12.93 ± 1.13

10.93 ± 2.62

11.26 ± 0.93

11.46 ± 0.41

∑ PUFAa

22.87 ± 1.26

23.93 ± 3.39

24.14 ± 1.36

27.36 ± 3.17

26.57 ± 1.33

24.46 ± 3.58

25.18 ± 1.72

25.57 ± 0.81

EPA:ARAa

3.84 ± 0.85

4.32 ± 1.08

3.95 ± 0.42

6.32 ± 1.12

5.72 ± 0.77

4.14 ± 0.32

5.88 ± 0.99

5.58 ± 0.93

DHA:EPAa

2.44 ± 0.17

2.74 ± 0.05

2.36 ± 0.32

2.26 ± 0.25

2.48 ± 0.19

2.25 ± 0.21

2.17 ± 0.09

2.32 ± 0.07