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Repeat hydrographic sections occupied in 1995 and … 2005 reveal a rapid decline in the salinity and density of … Antarctic Bottom Water throughout the Australian Antarctic … Basin. The basin-wide shift of the deep potential … temperature-salinity (qS)…
Two terrestrial Crustacea, Puhuruhuru patersoni (Amphipoda: Talitridae) and Styloniscus otakensis … (Isopoda: Styloniscidae), were discovered on sub-Antarctic Macquarie Island in 1991 and 1992, respectively. Each … species was identified as having been described, and previously only known…
We describe a large-angle survey for fast, optical transients: gamma ray bursts (GRBs), supernovae (SNe), lensed and … transiting planets, AGNs and serendipitously found objects.
Abstract We examined the incidence of extreme … diving in a 3-year overwintering study of emperor … penguins Aptenodytes forsteri in East Antarctica. We … defined extreme dives as very deep (> 400 m) and/or … very long (> 12 min).
This study presents compelling evidence for a diverse and abundant seabed community … that developed over the course of the Holocene beneath the Amery Ice Shelf, East Antarctica. Fossil … analysis of a 47 cm long sediment core revealed a rich modern fauna dominated by filter feeders …
New evidence regarding the origins of the Crustacea of Antarctic lakes is reviewed. Palaeolimnological data indicates that the cladoceran Daphniopsis studeri has been present in Lake Reid, Larsemann Hills, for over 120 000 yr.
Blue-dyed bait is a seabird bycatch mitigation technique which is assumed to reduce the … contrast between the bait and the ocean background making baits visually cryptic to seabirds. We tested this assumption in two ways. First, using measured spectral profiles of blue-dyed … baits (fish and squid)…
A recent review by Ainley et al. has suggested that recent investigations of the ecological structure … and processes of the Southern Ocean have “almost exclusively taken a bottom-up, forcing-by-physicalprocesses … approach relating individual species’ population trends to climate change”.
I will review current efforts to model the Antarctic ice pack. Sea ice models in GCMs have … become more sophisticated in recent years; state-of-the-art models now include viscousplastic … dynamics, second-order-accurate advection, multilayer thermodynamics…
Although huddling was shown to be the key by which emperor penguins (Aptenodytes forsteri) save energy and sustain their breeding fast … during the Antarctic winter, the intricacies of this social behavior have been poorly studied.
The field of ultra-low frequency (ULF) wave research is an important piece in … the jigsaw of the dynamics of the Earth's magnetospheric system. These waves are … recognized through their interactions with particles and fields, and energy transfer … processes.
We present sea surface temperature (SST) records with centennial-scale resolution from the Bay of Plenty, north of New Zealand. Foraminiferal assemblage-based paleo-SST estimates provide a deglacial record of SST … since 16.5 14C ka. Average Holocene SSTs are 15.6C for winter and 20.3C for summer…
Based to a large degree on the precedent set by CCAMLR in 1991, the streamer line has … become the primary, and most commonly prescribed, seabird mitigation device in world … longline fi sheries. This paper reviews CCAMLR streamer line requirements (Conservation … Measure 25-02 (2002)…
Antarctica is both the coldest and most arid continent on Earth, and experiences continuous … light in midsummer and continuous darkness in midwinter. These factors reduce the growth … rate of the continental Antarctic flora (mosses, lichens and algae) to a minimum.
Invasive species are a serious threat to biodiversity … worldwide. The relatively simple ecological … systems of the subantarctic have the potential to be signiWcantly … damaged by predatory species that invade. Two species of exotic, predatory…
Total dissolvable iron (TDFe) was measured in sections of ice cores recovered from Law Dome on the … coast of Wilkes Land, East Antarctica. These samples include ice dating from the Last Glacial Maximum … (LGM), the Last Deglaciation…
The degree to which Southern Hemisphere climatic changes during the end of the last … glacial period and early Holocene (30-8 ka) were influenced or initiated by events occurring in the high … latitudes of the Northern Hemisphere is a complex issue.
Roughly equal amounts of dense water sink in the high latitudes of both hemispheres to … ventilate the deep oceans and supply the lower limb of the global thermohaline (or … overturning) circulation.
Researchers in the SCAR- RiSCC program have been examining the interactions among … climate change, indigenous and alien species, and species and ecosystems function in … terrestrial and limnetic environments spanning an Antarctic environmental gradient of 30° … latitude. This international…
Palaeolimnological studies of environmental change focusing on select species are useful, yet … cannot give information on changes in whole lake community structure and dynamics. Analysis of entire fossil zooplankton communities, in addition to interpretation of diatom…
The provision of energy services has always held a vital, central role in the support of Antarctic research operations.
We investigate ice shelf rift propagation using a … combination of GPS and seismic measurements near the … tip of an active rift in the Amery Ice Shelf. These … measurements reveal that propagation occurs in episodic … bursts…