Table 1. Fatty Acid (FA) composition (expressed in mg FA * g dry weight-1 (DW) and in % of total FA pool in parentheses) of the soft tissue of N. inaequisculpta at different distances from a melting glacier in Marian Cove, WAP.
| Site | ||||
|---|---|---|---|---|
| Fatty acids | MC2 | MC3 | MC4 | MC5 |
| C11:0 | 1.34 ± 0.35 (2.66) | 1.86 ± 0.80 (3.39) | 1.48 ± 0.58 (2.82) | 1.35 ± 0.40 (2.66) |
| C12:0 | 1.21 ± 0.21 (2.4) | 1.40 ± 0.23 (2.55) | 1.41 ± 0.27 (2.67) | 1.41 ± 0.36 (2.78) |
| C14:0 | 2.18 ± 1.12 (4.33) | 2.71 ± 0.97 (4.95) | 2.66 ± 1.01 (5.06) | 2.13 ± 0.85 (4.20) |
| C15:0 | 1.64 ± 0.55 (3.26) | 1.59 ± 0.64 (2.90) | 1.56 ± 0.57 (2.97) | 1.37 ± 0.48 (2.70) |
| C16:0 | 10.86 ± 4.96 (21.57) | 11.29 ± 5.05 (20.60) | 10.94 ± 4.77 (20.83) | 10.87 ± 4.84 (21.44) |
| C17:0 | 1.2 ± 0.58 (2.38) | 1.49 ± 0.48 (2.72) | 1.63 ± 0.71 (3.10) | 1.47 ± 0.58 (2.90) |
| C18:0 | 6.89 ± 2.72 (13.69) | 6.93 ± 2.87 (12.65) | 6.87 ± 2.78 (13.08) | 6.57 ± 2.79 (12.96) |
| C20:0 | 1.93 ± 0.84 (3.83) | 1.95 ± 0.82 (3.56) | 1.80 ± 0.83 (3.43) | 1.93 ± 0.80 (3.81) |
| C22:0 | 1.68 ± 0.81 (3.34) | 2.29 ± 0.86 (4.18) | 2.01 ± 0.67 (3.83) | 1.76 ± 0.77 (3.47) |
| C23:0 | 1.95 ± 0.83 (3.87) | 2.03 ± 0.93 (3.70) | 1.96 ± 1.00 (3.73) | 1.94 ± 0.76 (3.83) |
| Total SFA | 30.88 ± 3.21 (61.34) | 33.54 ± 3.23 (61.20) | 32.32 ± 3.16 (61.54) | 30.80 ± 3.15 (60.74) |
| C14:1n-5 | 1.88 ± 1.00 (3.73) | 2.54 ± 1.14 (4.64) | 1.95 ± 0.78 (3.71) | 1.88 ± 0.92 (3.71) |
| C16:1n-9 | 1.70 ± 1.06 (3.38) | 1.73 ± 0.99 (3.16) | 1.74 ± 1.06 (3.31) | 1.80 ± 1.15 (3.55) |
| C18:1n-9 | 6.66 ± 2.63 (13.23) | 6.61 ± 2.26 (12.06) | 6.56 ± 2.32 (12.49) | 6.62 ± 2.38 (13.05) |
| C22:1n-9 | 0.97 ± 0.46 (1.93) | 1.32 ± 0.51 (2.41) | 1.09 ± 0.42 (2.08) | 1.00 ± 0.54 (1.97) |
| Total MUFA | 11.21 ± 2.60 (22.27) | 12.20 ± 2.43 (22.26) | 11.34 ± 2.51 (21.59) | 11.30 ± 2.56 (22.28) |
| C18:2n-6t | 1.13 ± 0.46 (2.24) | 1.67 ± 0.69 (3.05) | 1.45 ± 0.67 (2.76) | 1.32 ± 0.65 (2.60) |
| C20:4n-6 (ARA) | 1.87 ± 0.76 (3.71) | 1.87 ± 0.85 (3.41) | 1.94 ± 0.82 (3.69) | 1.93 ± 0.70 (3.81) |
| Total n-6 PUFA | 3.00 ± 0.52 (5.96) | 3.54 ± 0.14 (6.46) | 3.39 ± 0.35 (6.45) | 3.25 ± 0.43 (6.41) |
| C20:3n-3 | 0.98 ± 0.48 (1.95) | 1.24 ± 0.42 (2.26) | 1.13 ± 0.48 (2.15) | 1.02 ± 0.48 (2.01) |
| C20:5n-3 (EPA) | 2.40 ± 0.90 (4.77) | 2.38 ± 0.85 (4.34) | 2.42 ± 0.96 (4.61) | 2.36 ± 0.78 (4.65) |
| C22:6n-3 (DHA) | 1.87 ± 0.75 (3.73) | 1.90 ± 0.81 (3.47) | 1.92 ± 0.89 (3.68) | 1.98 ± 0.82 (3.90) |
| Total n-3 PUFA | 5.25 ± 0.72 (13.43) | 5.52 ± 0.57 (10.07) | 5.47 ± 0.65 (10.42) | 5.36 ± 0.69 (10.57) |
| Total PUFA | 8.25 ± 0.59 (16.39) | 9.06 ± 0.41 (16.53) | 8.86 ± 0.50 (16.87) | 8.61± 0.54 (16.98) |
| Total FA | 50.34 ± 2.60 (100) | 54.80 ± 2.58 (100) | 52.52 ± 2.55 (100) | 50.71 ± 2.54 (100) |
| n-3/n-6 | 1.75 ± 0.59 | 1.56 ± 0.41 | 1.61 ± 0.50 | 1.65 ± 0.54 |
| ARA/EPA | 0.78 ± 0.37 | 0.79 ± 0.36 | 0.80 ± 0.34 | 0.82 ± 0.30 |
| DHA/EPA | 0.78 ± 0.37 | 0.80 ± 0.34 | 0.79 ± 0.35 | 0.84 ± 0.27 |
Mean ± SD, n = 80. Abbreviations are the following = SFA: saturated FA; MUFA: monounsaturated FA; PUFA: polyunsaturated FA; ARA: arachidonic acid; EPA: eicosapentaenoic acid; DHA: docosahexaenoic acid. SFA = sum of C11:0, C12:0, 14:0, 15:0, 16:0, 17:0, 18:0 C20:0, C22:0 and C23:0; MUFA = sum of 14:1n-5, 16:1n-9, 18:1n-9 and 22:1n-9; Total n-6 PUFA = sum of 18:2n-6t and 20:4n-6; Total n-3 PUFA = sum of 20:3n-3, 20:5n-3, 22:5n-3 and 22:6n-3; Total PUFA = sum of n-3 and n-6 PUFA; Total FA = sum of Total SFA, Total MUFA, and Total PUFA.