An ecosystem model for evaluating the effects of introduced Pacific salmon on contaminant burdens of stream-resident fish

摘要

Highlights ? Pacific salmon can transport persistent organic contaminants and heavy metals to streams. ? We developed an ecosystem model to assess salmon contaminant biotransport. ? Our model accurately predicted PCB concentrations in resident fish. ? PCB concentrations in resident fish were strongly controlled by salmon PCB inputs. ? Our model was unable to accurately predict Hg concentrations in resident fish. ? Hg levels appeared to be controlled by background sources.