Table 4.
Mountain (Site M) | Littoral (Site L) | Altitude * Season Interaction |
||||||||
---|---|---|---|---|---|---|---|---|---|---|
Fatty Acid |
Corresponding
acyl |
Winter | Spring | Summer | Autumn | Winter | Spring | Summer | Autumn | |
Methyl Ester (ME) | ||||||||||
Myristic acid ME | C14:0 | 6.6 ± 1.7 ac | 4.0 ± 0.2 bc | 1.8 ± 0.1 ac | 3.4 ± 0.1 ab | 2.5 ± 0.1 bc | 3.2 ± 0.1 c | 2.7 ± 0.3 a | 2.7 ± 0.5 d | *** |
Hexadecenoic acid ME | C16:1 | 1.2 ± 0.3 c | 0.9 ± 0.1 b | 1.2 ± 0.1 bc | 1.1 ± 0.1 a | 0.5 ± 0.1 b | 1.1 ± 0.1 ab | 1.3 ± 0.1 bc | 1.5 ± 0.2 bc | *** |
Palmitic acid ME | C16:0 | 24.8 ± 2.3 c | 28.3 ± 0.3 c | 27.4 ± 0.5 c | 30.3 ± 0.9 a | 26.3 ± 1.1 bc | 31.5 ± 0.4 ac | 31.4 ± 1.0 ab | 31.7 ± 2.0 a | |
Margaric acid ME | C17:0 | 0.7 ± 0.1 c | 0.8 ± 0.1 b | 0.8 ± 0.1 bc | 0.9 ± 0.1 a | 0.6 ± 0.1 b | 0.9 ± 0.1 ab | 0.9 ± 0.1 ab | 1.1 ± 0.1 ab | ** |
Linoleic acid ME | C18:2 | 20.1 ± 1.7 ab | 20.0 ± 0.2 c | 28.2 ± 8.7 a | 13.9 ± 0.6 c | 26.2 ± 0.9 ab | 22.7 ± 0.5 bc | 9.7 ± 0.2 c | 14.1 ± 1.2 bc | *** |
Oleic acid ME | C18:1 | 2.8 ± 0.2 c | 5.7 ± 0.4 bc | 15.3 ± 8.3 d | 10.8 ± 0.3 c | 14.4 ± 0.3 bc | 10.4 ± 0.6 ab | 30.2 ± 1.2 c | 15.3 ± 1.5 a | ** |
Linolenic acid ME | C18:3 | 35.5 ± 1.8 d | 34.0 ±1.2 bc | 18.5 ± 0.2 a | 31.8 ± 1.1 c | 23.4 ± 0.2 e | 21.7 ± 0.6 e | 17.6 ± 0.7 ab | 27.2 ± 2.8 e | *** |
Stearic acid ME | C18:0 | 1.9 ± 0.2 bc | 2.3 ± 0.1 ab | 2.6 ± 0.1 c | 2.6 ± 0.1 a | 2.1 ± 0.1 bc | 2.2 ± 0.2 ab | 2.8 ± 0.1 bc | 2.6 ± 0.3 a | |
Docosanoic acid ME | C22:0 | 0.9 ± 0.1 ac | 1.2 ± 0.1 c | 1.1 ± 0.1 bc | 1.2 ± 0.1 a | 0.9 ± 0.1 bc | 1.3 ± 0.1 c | 1.2 ± 0.2 ac | 1.2 ± 0.2 ab | |
Total identified | 94.3 ± 3.0 | 96.7 ± 0.7 | 96.8 ± 0.7 | 95.9 ± 0.6 | 96.9 ± 0.3 | 94.8 ± 0.9 | 97.8 ± 0.2 | 97.3 ± 0.3 | ||
C14; C16; C17; C18; C22 | Mean (ΣSFA) | 34.8 ± 1.0 d | 36.6 ± 0.4 d | 33.6 ± 0.7 d | 38.3 ± 1.1 a | 32.4 ± 1.2 cd | 39.0 ± 0.7 bd | 39.0 ± 1.5 ab | 39.6 ± 2.9 abc | ** |
C16:1; C18:1 | Mean (ΣMUFA) | 3.9 ± 0.5 c | 6.6 ± 0.4 ac | 16.5 ± 8.3 d | 11.9 ± 0.4 bc | 14.9 ± 0.2 ac | 11.5 ± 0.5 ab | 31.5 ± 1.2 c | 16.8 ± 1.7 a | * |
C18:2; C18:3 | Mean (ΣPUFA) | 55.5 ± 2.7 b | 54.0 ±1.1 bc | 46.7 ± 8.6 a | 45.7± 0.5 bd | 49.6 ± 0.9 bd | 44.3 ± 1.1 cd | 27.3 ± 0.5 bd | 41.2 ± 1.8 d | ** |
Means followed by different letters (in italic) within the same row were significantly different (p < 0.05). Significance effect of the interaction between altitude and season as determined by ANOVA, p-values: *** p < 0.001; ** p < 0.01; * p < 0.05.