Table 4.

Summary of the trophic magnification slope (TMS) analysis for metal biomagnification in an east Hudson Bay arctic marine food web. Metal concentrations were log-transformed to meet the assumption of normality. The muscle was used for vertebrate species. Arctic cod and sculpin muscle data was not included in the Cd TMS analysis due to > 50% of Cd samples being below the detection limit. Significant results are in bold

Model		Estimate (β coef)	SE	t-value	P-value
A) logCd ~ δ15N
R2 = 0.49, n = 127, F-statistic = 117.9, P-value < 0.001
	(Intercept)	1.805	0.184	9.841	< 0.001
	δ15N	− 0.192	0.018	− 10.857	< 0.001
B) logHg ~ δ15N
R2 = 0.69, n = 234, F-statistic = 508.8, P-value < 0.001
	(Intercept)	− 2.568	0.082	− 31.27	< 0.001
	δ15N	0.150	0.007	22.56	< 0.001