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Table 13.

Fatty acids composition from liver and muscle of three Mauritanian rays (adapted from Vall Ould El kebir et al., 2007).

Fatty acids Dasyatis marmorata
Rhinobatos cemiculus
Muscle Liver Muscle Liver
14:0 2.24 5.77 5.83 0.05
15:0 0.29 0.18 0.43 0.12
16:0 19.4 14.10 21.0 20.7
i-17:0 0.98 0.32 0.73 0.37
ai-17:0 0.22 0.37 0.45 0.06
17:0 0.18 0.27 0.41 0.19
18:0 9.23 5.51 13.3 19.4
20:0 0.21 0.11 0.13 0.23
22:0 0.42 0.60
16:1n-10 0.34 0.58 0.28 0.24
16:1n-7 2.85 11.6 1.90 9.42
16:1n-6 0.53 0.66 0.8 0.59
17:1n-11 0.68 0.11 0.26 0.87
17:1n-8 0.30 1.14 0.44 0.99
18:1n-12 1.48 1.18 1.81 0.13
18:1n-9 8.61 6.59 8.00 6.54
18:1n-7 3.49 5.63 0.44 0.35
20:1n-10 0.18 0.46
20:1n-9 0.50 1.02 0.21 0.61
20:1n-7 0.15 1.30 0.63 0.60

Diunsaturated fatty acids
18:2 Δ9,12 1.09 1.08 0.40 0.39
20:2 Δ7,15 0.80 1.86 0.43 1.30
22:2 Δ6,14 0.19 0.23
22:2 Δ7,13 3.46 2.20 2.28 1.94
22:2 Δ7,15 3.46 0.35
16:3n-4 0.56 1.04 0.53 0.53
18:4n-3 0.67 1.15 0.68 0.81
18:3n-6 0.10 0.95 0.75 0.87
20:5n-3 4.95 3.41 4.63 5.01
20:4n-6 5.57 5.66 7.32 6.63
22:4n-6 1.40 1.00
22:5n-3 9.37 5.24 3.91 4.76
22:6n-3 16.10 13.4 18.70 13.2

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