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Table 3 Average (standard deviation) of stable carbon and nitrogen isotope ratios (δ 13 C and δ 15 N) and percent carbon (%C) and nitrogen (%N) in the feces of brown-marbled grouper

From: Stable isotope enrichment in muscle, liver, and whole fish tissues of brown-marbled groupers (Epinephelus fuscoguttatus)

Day

δ13C (‰)

δ15N (‰)

%N

%C

Sample number

0

−21.9 (0.2)

10.3 (0.0)

2.2 (0.2)

23.1 (2.0)

4

7

−22.3 (0.6)

15.5 (0.5)

1.9 (0.4)

19.9 (3.1)

5

14

−21.5 (0.3)

14.8 (0.8)

1.9 (0.3)

17.7 (3.3)

5

28

−21.2 (0.6)

14.8 (0.9)

1.8 (0.3)

18.0 (4.0)

4

42

−21.6 (0.3)

14.3 (0.2)

1.8 (0.1)

18.0 (0.7)

2

56

−20.1

18

3.3

20.6

1