Table 2. Pearson Correlation of CSIA with Fatty Acid Bulk Values and Site-Specific Repeatability.

	correlation with bulk		site-specific repeatability δ13C				site-specific repeatability δ2H
	r13C	r2H	brain	eye	liver	muscle	brain	eye	liver	muscle
14:0	0.734	0.313	0.33 ± 0.11	0.61 ± 0.12	0.16 ± 0.09	0.60 ± 0.12	0.59 ± 0.12	0.45 ± 0.12	0.37 ± 0.13	0.33 ± 0.11
16:0	0.925	0.778	0.71 ± 0.10	0.61 ± 0.12	0.62 ± 0.12	0.81 ± 0.08	0.50 ± 0.12	0.42 ± 0.12	0.38 ± 0.13	0.44 ± 0.12
16:1	0.700	0.696	0.63 ± 0.11	0.45 ± 0.12	0.38 ± 0.13	0.56 ± 0.12	0.41 ± 0.12	0.33 ± 0.12	0.31 ± 0.13	0.15 ± 0.08
18:0	0.851	0.833	0.60 ± 0.12	0.59 ± 0.12	0.49 ± 0.14	0.59 ± 0.12	0.39 ± 0.12	0.35 ± 0.11	0.52 ± 0.13	0.12 ± 0.07
18:1	0.908	0.826	0.74 ± 0.10	0.71 ± 0.10	0.45 ± 0.14	0.70 ± 0.10	0.30 ± 0.11	0.32 ± 0.12	0.23 ± 0.11	0.20 ± 0.09
LIN	0.610	0.217	0.37 ± 0.12	0.55 ± 0.13	0.38 ± 0.13	0.43 ± 0.12	0.19 ± 0.09	0.32 ± 0.11	0.27 ± 0.12	0.59 ± 0.12
ALA	0.645	–0.122	0.56 ± 0.12	0.65 ± 0.11	0.59 ± 0.13	0.76 ± 0.09	0.43 ± 0.12	0.58 ± 0.12	0.47 ± 0.13	0.67 ± 0.11
SDA	0.443	0.217	0.62 ± 0.12	0.37 ± 0.12	0.26 ± 0.12	0.25 ± 0.10	0.18 ± 0.12	0.18 ± 0.09	0.13 ± 0.10	0.10 ± 0.07
ARA	0.635	–0.449	0.52 ± 0.12	0.63 ± 0.12	0.40 ± 0.13	0.59 ± 0.12	0.38 ± 0.12	0.40 ± 0.12	0.46 ± 0.14	0.42 ± 0.12
ETA	0.630	0.392	0.58 ± 0.12	0.60 ± 0.12	0.63 ± 0.12	0.56 ± 0.12	0.08 ± 0.07	0.49 ± 0.14	0.12 ± 0.10	0.16 ± 0.09
EPA	0.808	0.385	0.79 ± 0.09	0.55 ± 0.12	0.63 ± 0.12	0.80 ± 0.09	0.45 ± 0.12	0.52 ± 0.12	0.37 ± 0.13	0.29 ± 0.11
DPA	0.728	0.620	0.74 ± 0.10	0.41 ± 0.12	0.57 ± 0.13	0.80 ± 0.09	0.43 ± 0.12	0.49 ± 0.13	0.36 ± 0.13	0.20 ± 0.10
DHA	0.897	0.375	0.84 ± 0.07	0.76 ± 0.09	0.66 ± 0.12	0.79 ± 0.09	0.34 ± 0.11	0.28 ± 0.11	0.52 ± 0.13	0.24 ± 0.10
FABulk	1.000	1.000	0.83 ± 0.07	0.68 ± 0.11	0.66 ± 0.11	0.80 ± 0.08	0.41 ± 0.11	0.42 ± 0.11	0.51 ± 0.12	0.35 ± 0.10