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Table 3 Gonad fatty acid composition of Paracentrotus lividus males and females collected at Torregorda

From: Males and females gonad fatty acids of the sea urchins Paracentrotus lividus and Arbacia lixula (Echinodermata)

Fatty acids

Males (n = 41)

Females (n = 29)

14:0

7.8 ± 2.1

8.9 ± 1.5a

15:0

0.9 ± 0.2

1.1 ± 0.3

16:0 DMA

0.3 ± 0.1

0.2 ± 0.1a

16:0

16.9 ± 2.6

18.2 ± 2.1a

17:0

0.4 ± 0.1

0.4 ± 0.1

18:0 DMA

4.3 ± 1.5

3.5 ± 1.2a

18:0

3.7 ± 0.8

3.3 ± 0.5a

20:0

0.6 ± 0.2

0.6 ± 0.1

∑ saturated

30.4 ± 3.9

32.5 ± 3.2a

16:1n-7

2.1 ± 1.1

2.5 ± 0.8

18:1n-9

1.4 ± 0.6

1.6 ± 0.4

18:1n-7

2.9 ± 0.6

3.1 ± 0.5

20:1n-11

5.1 ± 1.4

4.8 ± 1.3

20:1n-9

4.8 ± 1.0

5.0 ± 1.2

20:1n-7

1.0 ± 0.4

0.9 ± 0.2

22:1n-9

4.3 ± 1.2

3.7 ± 0.9a

∑ monoenoic

21.6 ± 2.5

21.6 ± 1.5

18:2n-6

0.9 ± 0.4

1.1 ± 0.4a

18:3n-6

0.7 ± 0.1

0.6 ± 0.1

20:2n-6

2.0 ± 0.5

1.8 ± 0.4

20:3n-6

0.6 ± 0.1

0.7 ± 0.2

20:4n-6

12.3 ± 1.8

11.3 ± 1.9a

22:4n-6

1.9 ± 0.4

2.1 ± 0.5

∑ PUFA n-6

18.4 ± 2.2

17.6 ± 2.4

18:3n-3

1.2 ± 0.6

1.5 ± 0.6

18:4n-3

1.4 ± 0.7

1.7 ± 0.5

20:3n-3

1.1 ± 0.3

1.1 ± 0.3

20:4n-3

0.5 ± 0.2

0.5 ± 0.2

20:5n-3

14.6 ± 4.3

13.4 ± 3.4

22:5n-3

0.5 ± 0.3

0.4 ± 0.2

22:6n-3

0.8 ± 0.4

0.7 ± 0.2

∑ PUFA n-3

20.2 ± 3.7

19.4 ± 3.0

20:2 5,11 NMID

4.1 ± 1.1

4.4 ± 1.0

20:2 5,13 NMID

0.7 ± 0.2

0.7 ± 0.2

  1. Values are mean percentages ± SD
  2. n Number of samples, DMA dimethylacetal, NMID non-methylene-interrupted diene, PUFA polyunsaturated fatty acids
  3. aP < 0.05 with respect to males