The marine labile dissolved organic carbon (DOC) pool is a dynamic reservoir of thousands of molecules. After excretion or release by phytoplankton and other microbes, metabolites are rapidly consumed, resulting in very low standing concentrations (picomolar to low nanomolar). To date, marine phy...

Polar regions are an under-studied environment within the global ocean, with seawater found under sea ice particularly under-sampled. This project provides concentrations of select dissolved organic carbon compounds found in under-ice seawater sampled between March and May 2023. The dissolved org...