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Antarctic sea ice is one of the largest biomes on Earth providing a critical habitat for ice algae. Measurements of primary production in Antarctic sea ice remain scarce and an observation-based estimate of primary production has not been revisited in over 30 years.
Microplastic (MP; plastic particles < 5 mm) pollution is pervasive in the marine environment, including remote polar environments. This study provides the first pan-Antarctic survey of MP pollution in Southern Ocean sea ice by analyzing sea ice cores from several diverse Antarctic regions.
Iron plays a pivotal role in regulating ocean primary productivity. Iron is supplied from diverse sources such as the atmosphere and the geosphere, and hence iron biogeochemical research has focused on identifying and quantifying such sources of "new" iron. However…
Southern Ocean phytoplankton form the base of the Antarctic food web, influencing higher trophic levels through biomass and community structure.
The fine-scale distribution of pelagic forage fish is shaped by competing factors as fish optimise foraging while avoiding predation.
A major source of energy during lactation in mammals is provided … through the mobilization of blubber fatty acids (FAs).
Adélie penguin (Pygoscelis adeliae) diet is an important indicator of prevailing environmental conditions and … resource availability. In this study, dietary variation within and between years was studied with fatty acid … signature analysis (FASA), stomach content analysis (SCA)…
Knowledge of penguin abundance at regional and circumpolar scales across the Southern Ocean is important … for the development of ecosystem models and to estimate prey consumption by penguins to assess potential competition … with fisheries’ operations.
1. The crabeater seal … Lobodon carcinophaga … is considered to be a key species in the krill-based foodweb … of the Southern Ocean. Reliable estimates of the abundance of this species are necessary to … allow the development of multispecies, predator…
Long-range forecasts of Antarctic sea ice are tery much in demand, not only because of … the potential importance of sea ice in global climate, but also for the practical purpose of … exploring the Antarctic continent. Unfortunately…
The Australian Antarctic Data Centre (AADC) plays a key role in managing and providing … access to scientific data collected under the auspices of the Australian Antarctic program. Through its membership of the Joint Committee of Antarctic Data Management (JCADM)…
Short-tailed shearwaters Puffinus tenuirostris (STSH) make use of a number of physical … oceanographic features on their foraging trips to the Southern Ocean from their breeding colonies in … southeast Australia.
Ideally, evidence from long-duration spaceflight should be used to predict likely occurrences of behavioral health events and for planning management strategies for such events. With small numbers of space travelers, and limited … long-duration missions of a year or more…
The aim of this project was to determine both … the diurnal changes in photosynthetic activity of Antarctic … sea ice algae and also the protective mechanisms … they use to mitigate the effects of in situ UV radiation.
Antarctic polar deserts can be of considerable scientific interest, but can also exhibit great environmental sensitivity. A variety of factors, including Australia’s legal obligations under the Madrid Protocol, public expectations, certain research opportunities, and ethical considerations…