Ora E.Johannsson, Marcio S.Ferreira, Scott Smith, Anne Crémazy, Chris M.Wood, and Adalberto L.Val. 2020. Effects of natural light and depth on rates of photo-oxidation of dissolved organic carbon in a major black-water river, the Rio Negro, Brazil. Science of the Total Environment.
See and download the entire article for free until July 8th here
Collaborative research between the Amazonian Research Institute in Manaus and Canadian scientists at UBC and Wilfred Laurier has contributed to global carbon modeling through quantification of areal rates of photo-oxidation of dissolved organic carbon (DOC) and its relationship with sunlight in a tropical black-water system. They further discovered that partial photo-oxidation (fluorescence changes in the DOC) occurred to at least twice the depth of complete photo-oxidation to CO2 and absorbance changes.