Multiple energy pathways structure mercury biomagnification in an Amazonian River food web
Mercury biomagnification in Amazonian rivers is usually assessed through fishes, yet contaminants can also move across riparian food webs through multiple energy pathways. We evaluated how total mercury (THg) is structured across the upper Caqueta River basin, a mining-impacted river floodplain system in the Colombian Amazon. Using stable carbon and nitrogen isotopes, trophic guild…
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