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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.