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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Ann N Y Acad Sci. 2010 May;1195:62–83. doi: 10.1111/j.1749-6632.2010.05456.x

Figure 2.

Figure 2

Relationship between mean mercury (Hg) concentrations in salmon and mercury concentrations in their prey (left panel) and relationship between the residuals from the salmon-prey regression, an index of trophic transfer, and salmon growth as mean final mass (right panel). Each point is a study site and different symbols indicate different years (■: 2005; +: 2006; ×:2007; □: 2008). Solid lines are simple linear fits to pooled data. The dashed line is the 1:1 relationship between salmon and prey Hg concentrations. Based on a subset of samples analyzed for Hg speciation, 96% of Hg in salmon and 85% of mercury in prey is methylmercury.