Table 2.

Fatty acid composition of the PC and PE classes of phospholipid extracted from plasma membranes of C. pagurus walking legs of crabs heterothermally acclimated with their CNS at 22°C

FA	PC		PE
	8°	22°	8°	22°
14:1	0.16  ± 0.09	0.17  ± 0.04	0.04  ± 0.04	0.14  ± 0.08
16:0	15.1  ± 1.44	15.81  ± 0.62	8.12  ± 0.48	8.23  ± 0.8
16:1	6.94  ± 0.62	5.45  ± 0.41	3.22  ± 0.22	2.69  ± 0.46
17:1	2.02  ± 0.2	1.8  ± 0.19∗	2.34  ± 0.43	2.65  ± 0.48
18:0	1.97  ± 0.21	2.14  ± 0.43	6.41  ± 1.27	9.15  ± 1.01∗
18:1	23.04  ± 0.85	26.68  ± 1.08∗∗	22.0  ± 1.82	18.78  ± 2.29∗
20:4	3.63  ± 0.33	3.51  ± 0.36	4.5  ± 0.21	5.03  ± 0.34
20:5	24.93  ± 2.14	20.33  ± 0.22	26.52  ± 1	25.51  ± 0.31
22:6	13.7  ± 0.4	13.38  ± 0.13	17.85  ± 0.99	18.87  ± 0.76
SFA	20.01 ± 2.01	21.51  ± 1.17	16.75  ± 1.35	20.07  ± 1.04∗∗
MUFA	34.4  ± 1.34	36.25  ± 0.8	29.99  ± 1.28	26.11  ± 1.11∗∗
PUFA	44.68  ± 2.4	39.92  ± 0.4	51.31  ± 1.15	51.91  ± 0.76
S/U	0.255  ± 0.05	0.285  ± 0.02	0.208  ± 0.02	0.255  ± 0.02∗

Values are given as mean ± SEM. Abbreviations are as in Table 1. ∗, P < 0.05; ∗∗, P < 0.01. n = 6.