| 摘 要： | In direct continuation with the acquired knowledge of ecosystem approach for the presence of mercury in the Amazon, we have launched in 2001 the NSERC-supported pan-Canadian COMERN project. This Collaborative Mercury Research Network addresses the urgent need for the development of a framework enabling researchers, political stakeholders, and communities concerned by the mercury question to evolve towards an interdisciplinary association capable of synergistically combining our knowledge on Hg into an original synthesis. We are presenting a simple integrated indicator representative of the specific susceptibility of an ecosystem to Hg bioaccumulation and subsequent transfer to humans. This indicator includes three concepts： （1） the sensitivity to bioaccumulation, induced and influenced by factors such as the Hg loading, the different transport and methylation processes, and human activities; （2） the vulnerability of the populations exposed to Hg through consumption of local and market fish; and （3） the adaptability of the ecosystem and the people living into it, an evaluation of its resilience, or its capacity to recover and/or to cope with the contamination, taking into account the social and political resources within the communities impacted.
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