National Institute of Polar Research

Biogeochemical controls on the concentrations and stable isotope compositions of sea-ice particulate organic matters in the Southern Ocean

Abstract. The primary production and zooplankton life cycles in the Southern Ocean synchronize with seasonal sea ice melting, during which particulate organic carbon (POC) and nitrogen (PN), including ice algae, are supplied from sea ice into the water column. To understand carbo...

Satellite telemetry suggests significant regional variation in post-fledging survival of Adélie penguins

Abstract Post-fledging periods represent one of the most vulnerable stages for juvenile seabirds. Adélie penguins Pygoscelis adeliae must quickly develop foraging skills while minimizing predation risk immediately after fledging. In the Antarctic Peninsula (AP) region, where popu...

Microbial communities and ecological functions shift with glacier retreat in the Canadian High Arctic

Abstract Glaciers are rapidly retreating under climate warming, raising concerns about the loss of unique microbial ecosystems in both glacier ice and forelands. However, the changes in microbial diversity, community structure, and functional traits across the glacier ice-forelan...