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Anthropogenic carbon dioxide has been accumulating in the … oceans, lowering both the concentration of carbonate ions … and the pH (ref. 1), resulting in the acidification of sea … water.
Zooplankton and benthic invertebrates are important components of polar lakes and often form the highest trophic level in the aquatic food web. Their biodiversity decreases towards high latitudes…
Evidence is provided from a sediment core from saline Abraxas Lake, Vestfold Hills, that indicates that the lake existed through the Last Glacial Maximum. It can therefore be concluded that at least part of the Vestfold Hills also remained ice-free through the Last Glacial Maximum…
Russian and Australian primary sources were examined in an attempt to reconstruct the voyage of the … first composite Soviet Antarctic expedition to Antarctica and from thence to Leningrad [St Petersburg].
A Rayleigh-Raman lidar has been operating at Australia's Davis Station in Antarctica since early 2001. The lidar is part of a suite of instruments making measurements of various processes from the lower atmosphere to the edge of space.
Decadal variations of the quasi-stationary wave amplitude and zonal structure are analyzed using the TOMS data. Seasonal dependence of total ozone content (TOC) is considered.
A total of 44 records of southern right whale mortalities and non-fatal anthropogenic interactions have been documented in Australia by … museums, wildlife agencies and researchers since 1950. Sixteen of the events involved whales that apparently survived.
1. Estimates of penguin abundance are important for developing marine ecosystem models and … assessing potential competition between penguins and fisheries operations. 2. Most shipboard surveys of penguins use strip transect (ST) or conventional distance sampling … (CDS)…
CCAMLR Conservation Measure 25-02 requires Spanish-system longline vessels to attach 8.5 kg weights at 40 m intervals on longlines to minimise interactions with seabirds. The weights typically used are collections of rocks enclosed in netting bags.
Line setters are used with integrated weight (IW) (50 g m–1 lead core) longlines by some autoline vessels in the Kerguelen and Crozet Islands Patagonian toothfish (Dissostichus eleginoides) fisheries to deter seabirds, ostensibly by expediting gear sink rates.
This review of late-Holocene palaeoclimatology represents the results from a PAGES/CLIVAR … Intersection Panel meeting that took place in June 2006. The review is in three parts: the principal high-resolution … proxy disciplines (trees, corals, ice cores and documentary evidence)…
The Spanish system of longline fishing is used in a range of demersal and semi-pelagic fisheries … throughout the southern hemisphere and has been the source of a large number of seabird fatalities.
Results of ongoing investigations into patterns of interannual variability in total column ozone as measured by the Bureau of Meteorology’s Dobson network over the Australian region are presented. At all latitudes, total column ozone increases during winter and spring…
Analysis of zonal anomalies in total ozone and thermal tropopause height shows … that ozone depletion during austral spring has a strong influence on the height … and sharpness of the tropopause over West Antarctica. The seasonal change of tropopause … peak height occurs between 9 km…
Sub-Antarctic islands have a diversity of origins in detail but most are volcanic and very young suggesting that they are short-lived and that the distribution would have been very different a few million years ago. They contrast with the common tourist brochure concept of oceanic islands.
This report presents the application of the taxonomic guidelines developed by the … Taxonomy Working Group to three pairs of taxa currently listed under Annex 1 … (Attachment 1) of the Agreement on the Conservation of Albatrosses and Petrels … (ACAP): 1. Amsterdam and Wandering Albatross…
The Lambert Glacier region of East Antarctica encompasses the proposed boundary between three of the ancient continents that … formed East Gondwana: Indo-Antarctica, the central East Antarctic Craton and a proposed extension of the Pinjarra Orogen of … Australia.
Antarctica is a continent locked in ice, with almost 99.7% of current terrain covered by permanent ice and snow, and clear evidence that, as recently as the Last Glacial Maximum (LGM), ice sheets were both thicker and much … more extensive than they are now.
Bacteria play a key role in the world’s oceans, supporting nutrient remineralisation and … mediating carbon transfer. Little is known about annual changes in bacterial concentration, production … and metabolism during the extreme seasonal changes in biological productivity in Antarctic … waters.
Despite being a major pathway for carbon flow in aquatic systems, little is known about … annual changes in microzooplankton grazing in Antarctic waters and its top-down control of phytoplankton.
The effects of ambient solar UV radiation (280 to 400 nm) were determined using 3 natural … marine protist communities incubated in 650 l tanks (minicosms) for 13 to 14 d over the summer … of 2002¨C2003 at Davis Station, Antarctica.
This paper very briefly summarises some aspects Adelie penguin count data from east Antarctica to demonstrate the extent and nature of variability in data from this large region, and to provide some background to some aspects of the R program SEABIRD outlined in McKinlay and Southwell…