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Plastic pollution is distributed patchily around the world’s oceans. Likewise, marine organisms that are vulnerable to plastic ingestion or entanglement have uneven distributions. Understanding where wildlife encounters plastic is crucial for targeting research and mitigation. Oceanic seabirds…
Seven passive acoustic surveys for marine mammal sounds were conducted by deploying sonobuoys along ship tracks during Antarctic voyages spanning years 2006-2021. These surveys included nearly 330° of longitude throughout Antarctic (south of 60°S) and sub-Antarctic (between 50-60°S) latitudes. Here…
Fuel spills have occurred in Antarctic and sub-Antarctic regions, and comprehensive remediation strategies have recently been established to clean-up fuel spills at Australia’s Casey Station and Macquarie Island. However…
A baseline for persistent organohalogen compound (POC) accumulation in the Antarctic … keystone species, Antarctic krill (Euphausia superba) has been established for a 50¡ã longitudinal … range of the eastern Antarctic sector. Samples of adult krill…
The upwelling of iron-rich Upper Circumpolar Deep Water (UCDW) is thought to be critical for primary production in the Southern Ocean, since iron has been shown to be a limiting factor in what is otherwise a high nutrient region.
The evolutionary and biogeographic history of the contemporary Antarctic terrestrial and marine biotas … reveals many components of ancient origin. For large elements of the terrestrial biota, long-term … isolation over timescales from hundreds of thousands to tens of millions of years…
The Harang reversal is a prominent feature frequently observed in the electric and … magnetic field patterns in the high-latitude auroral zone and plays an important role … in substorm dynamics. A comprehensive set of instruments, including Super Dual Auroral … Radar Network (SuperDARN)…
The efficacy of a new mass-transfer method for … estimating milk intake was examined in Antarctic fur … seals (Arctocephalus gazella) at Iles Kerguelen. Our … method differed from previous mass-transfer approaches … in that we estimated milk-mass transfer as the maternal … mass lost (MML; kg)…
We describe the circulation and seasonal development of the upper ocean … in the Seasonal Ice Zone (SIZ) of the Southern Ocean along 140°E. The 140°E section … was repeated four times between November 2001 and March 2002, spanning the period … from early spring to autumn.
Water collection and treatment is often required for effective cold regions contaminated site clean-up, where large volumes of … meltwater runoff might otherwise become contaminated during remediation activities and disperse pollutants into the surrounding … environment.
Abstract. We examined sexual dimorphism in 11 morphological characters of the Flesh-footed Shearwater (Puffinus … carneipes) and used these characters in a discriminant function analysis (DFA) to enable sexual classification in the field.
Remains of tardigrades have rarely been … reported to preserve in sediments, resulting in the … absence of important ecological and biogeographic … information that they could provide. However…
Integrated metamorphic and geochronological data place new … constraints on the metamorphic evolution of a Neoproterozoic … orogen in east Antarctica. Granulite-facies rocks from a 150 km … stretch of the Kemp Land coast reflect peak conditions involving … T870^9908C at P74^10 kbar…
Mineral equilibria modelling and electron microprobe chemical dating of monazite in granulite facies … metapelitic assemblages from the MacRobertson Land coastline, Rayner Complex, east Antarctica, are … consistent with an !anticlockwise" Neoproterozoic P–T–t path. Metamorphism occurred at c.
The process of marking otherwise indistinguishable animals … as individuals (and following them through subsequent … phases of their lives) has been central to numerous advances … in animal ecology, management, and conservation (Caughley … and Gunn 1996). Indeed…
The existence of Polar Mesosphere Summer Echoes (PMSE) in the Southern … Hemisphere (SH) has been confirmed using MST radar, HF radar and a Dynasonde. Studies spanned the geographic latitudes 62.1°S (Machu Picchu), 68.6°S (Davis), 69.0°S (Syowa), and 75.5°S (Halley Bay).
The existence of Polar Mesosphere Summer Echoes (PMSE) in the Southern Hemisphere … (SH) has recently been confirmed using HF radar (Ogawa et al., 2002), MST … radar (Morris et al., 2004), and a Dynasonde (Jarvis et al., 2005) following earlier … observations using MST radar (Woodman et al., 1999).
We present results of modelling iceberg tracks around East Antarctica, using the observed … long-term tracks of massive icebergs as reference data.
Astronomers have always sought the very best locations for their telescopes. From … observatories in city centres, astronomers moved first to nearby mountain tops, then to … remote sites in distant countries, to aircraft, and into space.