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Figure 1

From: Projected amplification of food web bioaccumulation of MeHg and PCBs under climate change in the Northeastern Pacific

Figure 1

Projections of MeHg concentrations in the Chinook salmon-southern resident killer whale food web of the Northeastern Pacific. Simulations are shown for (A) phytoplankton, (B) zooplankton, (C) foragefish (i.e. functional group that includes Pacific sardine, Sardinops sagax caeruleus; California/northern anchovy, Engraulis mordax; Pacific herring, Clupea pallasi; sand lance, Ammodytes hexapterus; eulachon, Thaleichthys pacificus; American shad, Alosa sapidissima; surf smelt, Hypomesus pretiosus; whitebait smelt, Allosmerus elongates), (D) squid (Loligo), (E) Chinook salmon and (F) southern resident killer whales under RCP 2.6 and 8.5 scenarios and the reference baseline/no-climate change control scenario (black dashed line). For the MeHg predictions in Chinook salmon (panel E), the red solid and dashed lines represent the Canada’s maximum level (ML) mercury consumption limits of 0.5 mg/kg and 1.0 mg/kg wet weight, respectively. Public health implications concerning to the projected MeHg concentrations in salmon is available in the Supplementary Information.

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