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...

Deep-sea hydrothermal vents are unique ecosystems that may release chemically distinct dissolved organic matter to the deep ocean. Here, we describe the composition and concentrations of polar dissolved organic compounds observed in low and high temperature hydrothermal vent fluids at 9°50′N on t...

Marine dissolved organic matter (DOM) varies in its recalcitrance to rapid microbial degradation. DOM of varying recalcitrance can be exported from the ocean surface to depth by subduction or convective mixing and oxidized over months to decades in deeper seawater. Carboxyl-rich alicyclic molecul...