Polar and Subpolar Ocean Ecosystems

High-latitude oceans exhibit extreme seasonal cycles in mixing, light and temperature that generate intense but ephemeral productivity with disproportionate influence on global carbon storage. Research in these environments examines how winter convection, spring restratification, glacier–ocean interactions and ongoing climate change shape ecosystem structure and particle export pathways. These regions serve as natural laboratories where physical controls on biological processes become particularly visible and where climate-driven changes may fundamentally alter carbon cycling.