Table 3. Fatty acid of the gonads of female swordfish.
Fatty acid profiles (expressed in mg g−1 DW and percentage) of the gonads of female Xiphias gladius from different seasons (winter vs spring) and different size ranges and/or distinct degrees of sexual maturity (small and/or virginal vs large and/or maturing).
| Winter | Spring | |||
|---|---|---|---|---|
| Fatty acid | Small | Large | Small | Large |
| C14:0 | n.d. | 0.11 ± 0.02a (2.36) | n.d. | 0.63 ± 0.61a (1.72) |
| C15:0 | n.d. | n.d. | n.d. | 0.21 ± 0.06 (0.57) |
| C16:0 | 0.52 ± 0.33a (20.7) | 0.76 ± 0.53a (15.8) | 0.74 ± 0.51a (23.36) | 5.52 ± 3.72b (15.06) |
| C17:0 | 0.15 ± 0.04a (5.82) | 0.12* (2.51) | 0.12 ± 0.03a (3.8) | 0.31 ± 0.17b (0.84) |
| C18:0 | 0.31 ± 0.16a (12.49) | 0.39 ± 0.23a (8.18) | 0.49 ± 0.29a (15.51) | 2.64 ± 2.07b (7.22) |
| C21:0 | n.d. | n.d. | n.d. | 0.18* (0.5) |
| C23:0 | n.d. | n.d. | n.d. | 0.88 ± 0.52 (2.4) |
| C24:0 | n.d. | n.d. | n.d. | 0.2 ± 0.08 (0.55) |
| ∑ SFA | 0.98 ± 0.27a (39.01) | 1.38 ± 0.44b (28.86) | 1.35 ± 0.43b (42.67) | 10.57 ± 2.72c (28.87) |
| C14:1 | n.d. | n.d. | 0.14 ± 0.03a (4.42) | 0.07 ± 0.01b (0.2) |
| C16:1 | 0.14 ± 0.06a (5.67) | 0.2 ± 0.06a (4.08) | 0.15 ± 0.04a (4.79) | 0.96 ± 0.71b (2.61) |
| C17:1 | n.d. | n.d. | n.d. | 0.27 ± 0.13 (0.74) |
| C18:1n9 | 0.39 ± 0.3a (15.87) | 1.08 ± 0.69b (22.52) | 0.74 ± 0.67ab (23.34) | 9.85 ± 8.07c (26.88) |
| C20:1 | n.d. | 0.24 ± 0.11a (5.05) | n.d. | 1.67 ± 1.29b (4.55) |
| C22:1 | n.d. | n.d. | n.d. | 0.38 ± 0.13 (1.03) |
| C24:1 | n.d. | n.d. | n.d. | 0.24 ± 0.09 (0.67) |
| ∑ MUFA | 0.53 ± 0.27a (21.54) | 1.52 ± 0.62b (31.65) | 1.03 ± 0.55ab (32.55) | 13.44 ± 5.44c (36.69) |
| C18:2n6t | n.d. | n.d. | n.d. | 0.22 ± 0.2 (0.61) |
| C18:2n6c | n.d. | n.d. | n.d. | 0.19 ± 0.04 (0.51) |
| C18:3n6 | n.d. | n.d. | n.d. | 0.28 ± 0.17 (0.76) |
| C20:2n6 | n.d. | n.d. | n.d. | 0.08* (0.23) |
| ∑ PUFA n6 | n.d. | n.d. | n.d. | 0.77 ± 0.16 (2.11) |
| C18:3n3 | n.d. | n.d. | n.d. | 0.2 ± 0.03 (0.56) |
| C20:3n3 | 0.36 ± 0.21a (14.59) | 0.16 ± 0.02b (3.31) | 0.22 ± 0.03c (6.85) | 0.9 ± 0.65d (2.45) |
| C20:5n3 | n.d. | 0.26 ± 0.04a (5.43) | n.d. | 1.42 ± 1.32b (3.87) |
| C22:6n3 | 0.62 ± 0.53a (24.85) | 1.47 ± 0.72b (3.75) | 0.57 ± 0.43a (17.92) | 9.53 ± 9.01c (25.46) |
| ∑ PUFA n3 | 0.98 ± 0.46a (39.44) | 1.89 ± 0.83b (39.49) | 0.79 ± 0.38a (24.77) | 12.05 ± 6.38c (32.33) |
| ∑ PUFA | 0.98 ± 0.46a (39.44) | 1.89 ± 0.83b (39.49) | 0.79 ± 0.38a (24.77) | 12.82 ± 5.67c (34.44) |
| Total FA | 2.49 ± 0.33a | 4.79 ± 0.62b | 3.17 ± 0.46c | 36.83 ± 4.65d |
Note:
SFA, Saturated fatty acid; MUFA, Monounsaturated fatty acid; PUFA, Polyunsaturated fatty acid (n-3 and n-6). Total SFA: sum of C8:0, C12:0, C13:0, C14:0, C15:0, C16:0, C17:0, C18:0, C20:0, C21:0, C22:0 and C24:0; Total MUFA: sum of C14:1n-5, C16:1n-7, C18:1n-9, C20:1n-9, C22:1n-9 and C24:1n-9; Total PUFA n-6: sum of C18:2n-6c, C18:3n-6, C20:2n-6, C20:3n-6; Total PUFA n-3: sum of C18:3n-3, C22:6n-3, C20:3n-3, C20:5n-3; Total PUFA: sum of PUFA n-3 and n-6; Total FA: sum of Total SFA, Total MUFA and Total PUFA. n.d., no detected. An asterisk indicates that the standard deviation could not be obtained. Different superscript letters indicate significant differences. The percentage is indicated in parentheses, and the mean values ± SD are provided.