Changes in Sediment Fatty Acid Composition during Passage through the Gut of Deposit Feeding Holothurians: Holothuria atra (Jaeger, 1883) and Holothuria leucospilota (Brandt, 1835)
Table 1
Fatty acid composition (µg g−1 dry weight) of ambient sediment, foregut, midgut, hindgut, and faecal pellets of Holothuria atra.
Fatty acids
Ambient sediment
Foregut
Midgut
Hindgut
Faecal pellets
14:0
3.7 ± 0.2
41.3 ± 10.4
5.0 ± 0.0
8.9 ± 0.4
5.4 ± 0.7
15:0 iso
0.5 ± 0.0
17.2 ± 2.7
2.3 ± 0.0
1.7 ± 0.1
0.5 ± 0.1
15:0 anteiso
0.2 ± 0.0
2.4 ± 2.4
—
—
0.2 ± 0.0
15:0
0.6 ± 0.0
10.8 ± 2.0
1.5 ± 0.0
2.0 ± 0.1
0.8 ± 0.1
16:0 iso
0.0 ± 0.0
9.4 ± 1.4
1.4 ± 0.0
0.5 ± 0.4
1.5 ± 0.2
16:0
41.4 ± 2.7
301.8 ± 22.1
112.8 ± 9.8
109.6 ± 5.0
54.4 ± 6.7
16:1ω9
20.9 ± 1.4
174.0 ± 11.7
130.8 ± 0.3
65.3 ± 3.0
1.7 ± 0.2
16:1ω7
1.0 ± 0.1
12.4 ± 0.7
12.5 ± 0.0
2.1 ± 0.1
1.0 ± 0.1
17:0 iso
0.8 ± 0.0
8.2 ± 8.2
1.1 ± 0.8
1.6 ± 0.1
0.3 ± 0.0
17:0 anteiso
1.7 ± 0.1
21.5 ± 3.0
3.8 ± 0.0
6.6 ± 0.3
—
17:0
0.4 ± 0.0
4.7 ± 4.7
1.6 ± 0.0
1.7 ± 0.1
1.0 ± 0.1
17:1
1.1 ± 0.1
45.8 ± 27.5
31.5 ± 20.9
4.6 ± 0.6
1.8 ± 0.2
18:0 iso
0.5 ± 0.0
—
—
—
0.8 ± 0.1
18:0 anteiso
0.3 ± 0.0
27.2 ± 27.2
3.5 ± 0.0
9.8 ± 0.4
0.3 ± 0.0
18:0
4.0 ± 0.3
114.6 ± 7.4
91.3 ± 0.1
19.8 ± 0.9
10.1 ± 1.3
18:1ω9
4.9 ± 0.3
44.4 ± 5.1
8.6 ± 0.1
24.4 ± 1.1
0.5 ± 0.1
18:1ω7
4.1 ± 0.3
83.2 ± 4.7
15.1 ± 0.1
19.2 ± 0.9
0.4 ± 0.0
18:2ω6
1.7 ± 0.1
48.8 ± 4.1
28.3 ± 10.0
16.0 ± 0.7
—
18:3ω6
0.8 ± 0.1
4.1 ± 4.1
1.0 ± 0.0
0.7 ± 0.6
0.2 ± 0.0
18:3ω4
0.0 ± 0.0
5.3 ± 5.3
—
2.9 ± 0.1
—
18:3ω3
1.4 ± 0.1
52.9 ± 2.9
18.1 ± 9.2
11.3 ± 0.5
—
18:4ω3
1.6 ± 0.1
20.7 ± 4.1
2.1 ± 0.0
1.8 ± 0.1
—
20:0
0.3 ± 0.0
19.9 ± 0.9
5.4 ± 0.0
2.9 ± 1.1
0.7 ± 0.1
20:1ω9
0.4 ± 0.0
85.3 ± 2.5
17.2 ± 0.1
31.8 ± 1.4
—
20:1ω7
0.4 ± 0.0
6.5 ± 6.5
3.0 ± 0.0
3.3 ± 0.1
—
20:2
0.0 ± 0.0
24.5 ± 1.5
5.2 ± 0.0
5.8 ± 0.3
0.1 ± 0.0
21:0
0.2 ± 0.0
—
—
0.4 ± 0.4
—
20:3ω6
—
—
1.3 ± 0.0
—
0.1 ± 0.0
20:4ω6
2.9 ± 0.2
140.1 ± 5.4
91.6 ± 5.8
52.0 ± 2.4
—
20:3ω3
0.0 ± 0.0
4.6 ± 4.6
3.0 ± 0.0
1.7 ± 1.5
—
20:5ω3
7.2 ± 0.5
151.9 ± 1.4
67.6 ± 5.8
30.4 ± 1.4
0.1 ± 0.0
22:0
0.2 ± 0.0
34.5 ± 3.4
5.3 ± 0.0
8.3 ± 0.4
0.7 ± 0.1
22:1ω9
0.0 ± 0.0
8.9 ± 8.9
1.2 ± 0.5
4.6 ± 0.2
—
22:1ω7
—
—
0.4 ± 0.4
—
—
23:0
0.0 ± 0.0
9.6 ± 4.1
1.3 ± 0.0
2.0 ± 0.1
—
22:4ω3
0.1 ± 0.0
—
—
—
—
22:5ω6
0.2 ± 0.0
5.4 ± 5.4
5.5 ± 0.5
3.8 ± 0.2
—
22:5ω3
0.2 ± 0.0
2.2 ± 2.2
0.3 ± 0.3
—
—
24:0
0.4 ± 0.0
4.0 ± 4.0
—
0.7 ± 0.6
1.1 ± 0.1
22:6ω3
1.7 ± 0.1
45.3 ± 32.5
12.6 ± 0.0
2.9 ± 0.5
—
24:1
0.0 ± 0.0
28.1 ± 23.1
7.9 ± 0.2
5.4 ± 0.2
—
25:0
0.0 ± 0.0
2.3 ± 2.3
1.0 ± 0.0
0.4 ± 0.8
0.5 ± 0.1
26:0
0.1 ± 0.0
—
—
—
—
Values are means ± SD; ; — means not detected or traces.
