The organic carbon flux to Arctic margin sediments: redox tracers stable isotopes and biomarkers as proxies for change

Areas that are very productive with algae and the marine food web, like the North Water Polynya in northern Baffin Bay, have very different organic carbon cycles from areas near river mouths that are strongly influenced by the land. We plan to characterize each region in detail and also compare the regions to produce an overall picture of the organic carbon cycle in the Canadian Arctic continental margin. We will also identify if the organic carbon cycle has been affected by the climate-related changes already underway.of climate change.