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In 1956, an emperor penguin (Aptenodytes forsteri)colony had been reported during an aerial survey north of the north-western protrusion of the West Ice Shelf in East Antarctica. About 15,000 birds were estimated to be present.
For Emperor penguins (Aptenodytes forsteri), huddling is the key to survival during the Antarctic winter. Penguins in a … huddle are packed so tightly that individual movements become impossible, reminiscent of a jamming transition in … compacted colloids. It is crucial, however…
The method traditionally used to estimate pack-ice seal abundance employs sighting surveys from ships or aircraft to … estimate the number of seals hauled out on the ice, combined with studies of haul-out behaviour to estimate the proportion … of time spent on the ice.
Abstract Samples of marine ice were collected from … the Amery Ice Shelf, a large embayed ice shelf in East … Antarctica, during the Austral summer of 2001–2002. The samples came from a site ~90 km from the iceberg … calving front of the shelf…
In 2001 and 2003 small-scale acoustic surveys of Antarctic krill (Euphausia superba) distribution and abundance were conducted … offshore from an East Antarctic colony of Adelie penguins on Bechervaise Island (671350S, 621490E) that has been monitored for … 15 years.
During the summer of 2008/09, measurements were taken at 34 magnetotelluric (MT) stations along profiles totaling approximately 180 line km in the Prydz Bay region of Antarctica. Prydz Bay comprises several regions of coastal outcrops with distinct geological histories…
In January 2005, members of a Chinese expedition team … were the first humans to visit Dome A on the Antarctic plateau, a site … predicted to be one of the very best astronomical sites on earth. In 2006, the Chinese Center for Antarctic Astronomy (CCAA)…
PLATO is a fully-robotic observatory designed for operation … in Antarctica. It generates its own electricity (about 1kW), heat … (sufficient to keep two 10-foot shipping containers comfortably above … 0◦C when the outside temperature is at −70◦C)…
In Polar Regions, sea ice has a marked influence on interactions between the coupled ocean-atmosphere system. The contribution of the sea ice zone to the global flux of dimethylsulphide (DMS), a trace sulphur gas implicated in climate change, has been of interest for over a decade.
ABSTRACT. The PLATeau Observatory (PLATO) is an automated self-powered astrophysical observatory that … was deployed to Dome A, the highest point on the Antarctic plateau, in 2008 January.
Line-transect distance sampling is a widely used method for estimating animal density from aerial surveys. Analysis of line-transect distance data usually relies on a requirement that the statistical distribution of distances of animal … groups from the transect line is uniform.
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.
The Ross seal (Ommatophoca rossii) is the least studied of the Antarctic ice-breeding phocids. In … particular, estimating the population status of the Ross seal has proved extremely difficult.
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…
In September–October 2005, the juxtaposition of low- and high-pressure anomalies at … 130W and 60W, respectively, created strong and persistent northerly airflow across the … West Antarctic Peninsula (WAP). This had a major impact on regional sea ice conditions…
We present the first detailed maps of fast ice around East Antarctica (75E–170E), using an image correlation technique applied to RADARSAT ScanSAR images from … November in 1997 and 1999. This method is based upon searching for, and distinguishing…
The effects of starvation on ultrastructure of … digestive gland cells were studied in furcilia larvae of Antarctic … krill (Euphausia superba: hereafter krill). Under laboratory … conditions, larvae were starved for 0, 5, 10, 15, 20 … and 25 days…
The International Polar Year 2007–2008 (IPY) was an intensive, internationally coordinated … scientific research campaign in the Arctic and … the Antarctic sponsored by the International … Council for Science (ICSU) and the World … Meteorological Organization (WMO). In two action-packed years…