. 2015 Jun 12;10(6):e0128149. doi: 10.1371/journal.pone.0128149

Table 2. Correlation coefficients among Hg concentration, andδ¹³C andδ¹⁵N values, and between age and Hg concentration shown in Table 1.

	Number of samples	Hg vs δ¹⁵N	Hg vs δ¹³C	δ¹³C vs δ¹⁵N	Age vs Hg	Hg vs frequency
Vietnam	18	0.748^*	0.607^*	0.409	0.410 ^a	0.592^*
New Zealand	21	0.677^*	0.261	0.311	0.396	0.636^*
Spain	28	0.763^*	0.584^*	0.692^*	0.432^*	0.746^*
USA	22	0.518^*	0.493^*	0.620^*	0.122 ^b	0.437^*
South Korea	33	0.321	0.313	0.638^*	0.699^*	0.785^*
Brazil	31	0.362^*	- 0.448^*	0.284	0.326	0.279
Japan	90	0.372^*	0.248^*	0.305^*	0.406^*	N.D
Whale meat-eaters ^c	45	0.549^*	0.202	0.422^*	0.227	N.D

*Significant correlation (p<0.05)

^aTwo samples with Hg concentrations of 6.9 and 5.7 μg/g were deleted (n = 16).

^bOne sample with an Hg concentration of 24.1 μg/g was deleted (n = 21).

^cQuoted from Endo et al. (23)

Table 2. Correlation coefficients among Hg concentration, andδ13C andδ15N values, and between age and Hg concentration shown in Table 1.