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Table 2 Average values of prominent fatty acids and content of FAs in total lipids of mollusks

From: Feeding spectra of bivalve mollusks Unio and Dreissena from Kanevskoe Reservoir, Ukraine: are they food competitors or not?

FAs Seston Sediments U. tumidus D. polymorpha D. bugensis
14:0 5.4 ± 0.3a 5.4 ± 1.2a 1.0 ± 0.0b 1.7 ± 0.3b 2.1 ± 0.3b
15:0 1.1 ± 0.1ab 1.4 ± 0.4a 1.2 ± 0.0ac 0.8 ± 0.1bc 0.7 ± 0.1bc
16:0 23.8 ± 2.1a 30.3 ± 1.0b 16.6 ± 0.2c 23.9 ± 1.2a 23.1 ± 2.0ac
17:0 0.7 ± 0.1a 0.8 ± 0.2a 2.9 ± 0.0b 1.4 ± 0.1c 1.0 ± 0.1ac
18:0 15.0 ± 3.2a 23.5 ± 4.7b 9.1 ± 0.3ac 5.6 ± 0.2c 4.5 ± 0.3c
20:0 1.0 ± 0.1a 1.2 ± 0.1a 0.2 ± 0.1b 0.4 ± 0.1b 0.7 ± 0.0ab
22:0 1.3 ± 0.2a 1.7 ± 0.5a 0.3 ± 0.1b 0.3 ± 0.1b 0.2 ± 0.0b
24:0 1.3 ± 0.2a 1.7 ± 0.1a 0.1 ± 0.1b 0.2 ± 0.1b 0.1 ± 0.0b
26:0 0.6 ± 0.1a 0.6 ± 0.1a 0.0 ± 0.0b 0.0 ± 0.0b 0.0 ± 0.0b
i15:0 1.2 ± 0.2a 0.7 ± 0.2b 0.1 ± 0.0c 0.2 ± 0.0c 0.2 ± 0.0bc
i17:0 0.6 ± 0.1ac 0.4 ± 0.1a 1.1 ± 0.1b 0.7 ± 0.1c 0.7 ± 0.1ac
16:1(n-7 + n-9) 10.1 ± 0.9a 6.9 ± 1.6b 3.4 ± 0.2c 4.6 ± 0.5bc 6.4 ± 0.0bc
18:1n-9 5.2 ± 0.7ab 5.4 ± 0.6ab 5.9 ± 0.3a 4.0 ± 0.3b 4.4 ± 0.1ab
18:1n-7 2.6 ± 0.5a 1.0 ± 0.2b 1.0 ± 0.1b 2.9 ± 0.1a 3.8 ± 0.2a
20:1n-13 0.0 ± 0.0a 0.0 ± 0.0a 13.6 ± 0.5b 7.8 ± 0.6c 6.4 ± 0.3c
20:1n-9 0.5 ± 0.1a 0.4 ± 0.0a 1.3 ± 0.0b 2.7 ± 0.2c 1.9 ± 0.0d
22:1n-9 2.3 ± 0.6a 3.1 ± 0.1a 0.3 ± 0.0b 0.3 ± 0.1b 0.2 ± 0.1b
22:1n-7 0.1 ± 0.0a 0.0 ± 0.0a 0.4 ± 0.0b 0.5 ± 0.1b 0.4 ± 0.1b
16:2n-4 1.4 ± 0.2a 0.8 ± 0.2b 0.0 ± 0.0c 0.1 ± 0.0c 0.1 ± 0.0c
16:3n-4 1.6 ± 0.2a 1.0 ± 0.2b 0.0 ± 0.0c 0.0 ± 0.0c 0.0 ± 0.0c
16:4n-3 1.1 ± 0.2a 1.0 ± 0.3a 0.0 ± 0.0b 0.0 ± 0.0b 0.1 ± 0.0b
18:2n-6 2.1 ± 0.2a 1.4 ± 0.1b 3.4 ± 0.1c 1.5 ± 0.1b 2.0 ± 0.1ab
18:3n-3 3.3 ± 0.5a 1.7 ± 0.3b 1.1 ± 0.0b 1.9 ± 0.1b 5.3 ± 0.1c
18:4n-3 2.2 ± 0.3a 2.0 ± 0.4a 0.3 ± 0.0b 0.9 ± 0.1b 3.0 ± 0.1c
20:4n-6 0.7 ± 0.2a 0.3 ± 0.0a 8.7 ± 0.4b 3.6 ± 0.3c 2.2 ± 0.4d
20:5n-3 5.1 ± 0.7a 2.4 ± 0.2b 4.3 ± 0.3ab 6.4 ± 0.3c 7.7 ± 0.7c
22:2n-6 0.0 ± 0.0a 0.0 ± 0.0a 3.3 ± 0.4b 2.9 ± 0.2b 2.7 ± 0.1b
22:3 Δ7,13,16 0.0 ± 0.0a 0.0 ± 0.0a 2.0 ± 0.3b 0.8 ± 0.1c 0.8 ± 0.2c
22:4n-6 0.0 ± 0.0a 0.0 ± 0.0a 2.9 ± 0.1b 0.5 ± 0.0c 0.3 ± 0.0d
22:5n-6 0.7 ± 0.1a 0.0 ± 0.0b 1.6 ± 0.2c 3.3 ± 0.2d 1.8 ± 0.1c
22:5n-3 0.2 ± 0.0a 0.0 ± 0.0a 4.9 ± 0.1b 5.1 ± 0.2b 3.9 ± 0.2c
22:6n-3 1.5 ± 0.3a 0.0 ± 0.0b 1.6 ± 0.1a 8.0 ± 0.4c 5.1 ± 0.4d
BFAs 7.8 ± 1.2a 5.4 ± 1.5a 6.5 ± 0.1a 6.3 ± 0.2a 6.7 ± 0.3a
FAs, total nd nd 3.5 ± 0.4ab 3.0 ± 0.1a 4.0 ± 0.3b
  1. Average values of quantitatively prominent fatty acids (FAs; % of the total, ± SE) of seston (n = 6), sediments (n = 3), Unio tumidus (n = 3), Dreissena polymorpha (n = 8), and D. bugensis (n = 2), and the content of FAs in total lipids (mg/g wet weight, ± SE) of mollusks from Kanevskoe Reservoir, Ukraine. Means in a row labeled with the same superscript letter do not significantly differ at p < 0.05 according to Fisher's LSD post hoc test. BFAs, FA markers of bacteria (the sum of i, ai14:0; i, ai15:0; ai15:1; 15:0; i16:0; i17:0; 17:0; and 18:1n-7); nd, not determined.