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Table 3 Fatty acid concentrations (percent of total fatty acids, %TFA) of the four crab species (mean ± SD, n = 12 for each species). Bold numbers emphasize FA contents > 10%TFA. “-“ = traces < 0.1%TFA or not detected. * The term “Grasses” comprises species of the genus Panicum and Paspalum

From: Dietary preferences of brachyuran crabs from Taiwan for marine or terrestrial food sources: evidence based on fatty acid trophic markers

Fatty acid (%TFA) Per. aff. Gra. alb. Ori. int. Geo. alb. Ulva spec. Grasses* Leaf litter
14:0 1.6 ± 1.1 0.6 ± 0.7 0.5 ± 0.6 0.1 ± 0.2 2.1 0.6 2.4
16:0 27.2 ± 9.9 19.0 ± 8.6 13.7 ± 6.5 10.8 ± 3.9 27.2 19.4 26.0
16:1(n-7) 4.3 ± 2.1 2.6 ± 0.9 2.3 ± 1.6 1.5 ± 1.4 4.0 1.5
16:1(n-5) 0.8 ± 0.3 0.4 ± 0.9 1.3 ± 0.4 0.9 ± 0.3
16:2(n-4) 2.0 ± 1.3 1.6 ± 1.0 1.0 ± 1.6 4.2 ± 1.8 0.3 0.5
16:4(n-1) 0.1 ± 0.1 0.8 ± 0.7
17:0 1.6 ± 0.4 1.9 ± 0.5 1.7 ± 0.3 1.4 ± 0.2 1.4 0.7- 1.1
18:0 7.3 ± 4.6 9.6 ± 2.5 8.8 ± 1.9 7.8 ± 1.2 0.8 3.2 13.5
18:1(n-9) 6.9 ± 1.5 9.9 ± 1.0 16.5 ± 5.1 19.1 ± 4.3 5.3 3.6 8.5
18:1(n-7) 3.6 ± 0.7 5.7 ± 1.5 2.0 ± 0.6 1.2 ± 0.4 5.8 0.5 1.1
18:2(n-6) 4.1 ± 0.9 5.9 ± 1.3 10.1 ± 2.8 11.2 ± 3.7 14.5 15.9 12.2
18:3(n-3) 2.4 ± 0.9 1.9 ± 0.6 2.6 ± 1.3 2.0 ± 1.0 16.1 47.2 13.8
18:4(n-3) 1.5 ± 1.0 0.4 ± 0.6 0.3 ± 1.0 3.8
20:0 0.7 ± 0.3 0.9 ± 0.2 0.8 ± 0.2 1.0 ± 0.2 1.6 3.5
20:2(n-6) 1.0 ± 0.4 1.1 ± 0.4 0.9 ± 0.8 1.1 ± 0.5 0.3
20:3(n-6) 1.2 ± 0.2 1.1 ± 0.2 0.7 ± 0.2 0.9 ± 0.2 0.7 0.7
20:4(n-6) 13.3 ± 5.5 18.2 ± 6.5 13.5 ± 7.6 18.9 ± 9.3 2.6 0.5
20:5(n-3) 9.8 ± 1.6 5.8 ± 1.8 7.8 ± 3.9 5.3 ± 2.7 2.8 1.3 4.2
22:0 0.5 ± 0.1 0.9 ± 0.4 0.8 ± 0.2 1.2 ± 0.2 0.4
22:5(n-3) 0.9 ± 0.3 1.2 ± 0.9 0.8 ± 0.2 0.6 ± 0.3 1.5 2.4 3.9
22:6(n-3) 1.6 ± 0.9 1.3 ± 0.9 2.4 ± 0.9 0.9 ± 0.5 0.3