Table 6.

Fatty acid composition (% of total fatty acids) of diploid and triploid Hong Kong oysters, Crassostrea hongkongensis, in the non-reproductive and reproductive phases.

Fatty acid	Non-reproductive		Reproductive
	Mean ± SD/2N	Mean ± SD/3N	Mean ± SD/2N	Mean ± SD/3N
SATURATED FATTY ACID (SFA) COMPOSITION (%)
8:0	–	–	0.25 ± 0.01	0.29 ± 0.05
12:0	–	–	0.10 ± 0.03	0.09 ± 0.02
14:0	3.04 ± 0.10	2.97 ± 0.09	6.13 ± 0.10a	3.42 ± 0.28b
15:0	1.42 ± 0.04	1.32 ± 0.04	0.98 ± 0.07	1.24 ± 0.17
16:0	38.13 ± 0.60a	33.7 ± 0.04b	38.35 ± 0.74	37.6 ± 2.00
17:0	4.25 ± 0.26a	3.79 ± 0.04b	2.64 ± 0.27	2.99 ± 0.21
18:0	11.23 ± 0.31a	9.84 ± 0.33b	9.53 ± 0.37	9.42 ± 0.67
20:0	0.21 ± 0.02	0.19 ± 0.01	0.28 ± 0.01	0.29 ± 0.03
21:0	0.10 ± 0.01	0.10 ± 0.01	–	–
22:0	0.34 ± 0.01	0.33 ± 0.01	–	–
ΣSFA	58.72	52.24	58.26	55.34
MONOUNSATURATED FATTY ACID (MUFA) COMPOSITION (%)
16:1n-7	1.95 ± 0.06	1.94 ± 0.11	4.46 ± 0.50	3.97 ± 0.47
18:1n-9	5.39 ± 0.05	5.41 ± 0.02	4.42 ± 0.47	5.09 ± 0.30
20:1n-9	0.90 ± 0.03	0.83 ± 0.05	–	–
22:1n-9	1.28 ± 0.10a	0.98 ± 0.07b	–	–
ΣMUFA	9.52	9.16	8.88	9.06
POLYUNSATURATED FATTY ACID (PUFA) COMPOSITION (%)
18:2n-6	2.49 ± 0.12a	2.79 ± 0.05b	2.57 ± 0.11a	3.25 ± 0.06b
18:3n-6	0.16 ± 0.01a	0.18 ± 0.01b	0.33 ± 0.02a	0.46 ± 0.02b
18:3n-3	2.88 ± 0.39a	3.85 ± 0.09b	4.25 ± 0.31a	5.13 ± 0.35b
20:2n-6	0.40 ± 0.01	0.41 ± 0.02	0.40 ± 0.04	0.35 ± 0.02
20:3n-6	0..22 ± 0.01	0.21 ± 0.01	0.28 ± 0.03	0.28 ± 0.01
20:4n-6	3.43 ± 0.08	3.35 ± 0.12	2.13 ± 0.52	2.01 ± 0.03
20:3n-3	0.20 ± 0.01	0.22 ± 0.02	0.24 ± 0.03	0.23 ± 0.02
20:5n-3	10.49 ± 0.71a	14.27 ± 0.83b	13.4 ± 0.44a	15.07 ± 0.71b
22:6n-3	11.28 ± 1.05a	14.30 ± 0.39b	8.61 ± 0.24a	10.93 ± 0.84b
ΣPUFA	31.55	39.58	32.21	37.71
ΣPUFA n-3	24.85	32.64	26.50	31.36
ΣPUFA n-6	6.70	6.94	5.71	6.35
ΣPUFA n-3/ΣPUFA n-6	3.71	4.70	4.64	4.94
ΣPUFA n-6/ΣPUFA n-3	0.27	0.21	0.22	0.20

Means ± SD followed by different letter within a line are significantly different (P < 0.05). “–” indicates < 0.0033%.