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Oxyphotobacteria ascribed to the genera Synechococcus and Synechocystis are widely distributed in Arctic and Antarctic lakes, yet they are poorly represented in the marine polar environment. Arctic lakes contain phycoerythrin-rich as well as phycocyanin-rich … picoplankton…
A review of popular writing on the subject of preservation of historic sites in Antarctica, including buildings, graves and artefacts, has revealed many misconceptions about the existence and cause of deterioration problems.
Outcrops in southern Prydz Bay comprise interleaved paragneiss and orthogneiss with high-temperature mineral assemblages and structures initially regarded as 1000 Ma in age (Grenvillian), but now known to largely reflect metamorphism and deformation at ~500 Ma (Pan African).
Vestfold Hills, East Antarctica exhibits marked contrasts in the weathering surface, glacial sediments and terrain between its eastern and western parts. The boundary between these zones coincides with a regional chemical boundary termed the salt line.
Seasonal changes in the photosynthetic and photoprotective pigment content of three species of Antarctic moss; Grimmia antarctici…
We are using molecular genetics techniques to investigate (a) the overall level of genetic diversity in Antarctic mosses, (b) the spatial arrangement and mutation levels within populations, (c) their taxonomic relationships and origins, (d) the effect of climate change on mutation levels, and (e)…
We studied sexual and individual differences in foraging and parental behavior of King Cormorants (Phalacrocorax albiventer) rearing chicks were studied at subantarctic Macquarie Island. Females dived mainly in the morning and males in the afternoon. Five females were shallow divers (1.9 to 6.8 m)…
A group of strains with potent extracellular enzymic activity were isolated from the surfaces of the chain-forming sea-ice diatom Melosira and from an unidentified macrophyte collected from the Eastern Antarctic coastal zone.
Quartz stone sublithic cyanobacterial communities are common throughout the Vestfold Hills, Eastern Antarctica (68 degrees S 78 degrees E) contributing biomass in areas otherwise devoid of any type of vegetation. In this study…
Global Positioning System (GPS) satellites now provide a major source of data used in the study of the ionized regions that … surround the Earth. With the greater use of GPS satellites in this role…
During the austral summer 1995/95 a cetacean sightings line transect survey was conducted on a platform of opportunity provided by Australian National Antarctic Research Expeditions krill hydroacoustic and oceanography survey of CCAMLR Division 58.4 (parts of IWC Area IV & V).
Abstract … Current ecological theory and practice, in parallel with the changing emphasis in international conservation and management organisations towards an ecosystem approach, require us to: