Polar sea ice is one of the largest ecosystems on Earth. The liquid brine fraction of the ice
matrix is home to a diverse array of organisms, ranging from tiny archaea to larger fish and …

Observations from the last decade suggest an important role of sea ice in the global
biogeochemical cycles, promoted by (i) active biological and chemical processes within the …

Atmospheric deposition of mercury onto sea ice and circumpolar sea water provides
mercury for microbial methylation, and contributes to the bioaccumulation of the potent …

The calving of A‐68, the 5,800‐km2, 1‐trillion‐ton iceberg shed from the Larsen C Ice Shelf
in July 2017, is one of over 10 significant ice‐shelf loss events in the past few decades …

Understanding how sea ice serves zooplankton species during the food-limited season is
crucial information to evaluate the potential responses of pelagic food webs to changes in …

Diatoms are significant primary producers in sea ice, an ephemeral habitat with steep
vertical gradients of temperature and salinity characterizing the ice matrix environment. To …

Antarctic pack ice is inhabited by a diverse and active microbial community reliant on
nutrients for growth. Seeking patterns and overlooked processes, we performed a large …

Antarctic sea ice can incorporate high levels of iron (Fe) during its formation and has been
suggested as an important source of this essential micronutrient to Southern Ocean surface …

Sea ice can contain high concentrations of dissolved organic carbon (DOC), much of which
is carbohydrate-rich extracellular polymeric substances (EPS) produced by microalgae and …

Our study quantified the spatial and temporal distribution of Fe and ancillary biogeochemical
parameters at six stations visited during an interdisciplinary Australian Antarctic marine …