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Length-at-age data for Patagonian toothfi sh (Dissostichus eleginoides) at Heard Island … (Division 58.5.2) were fi tted using a von Bertalanffy (VB) growth model taking into … account response-biased sampling of fi sh that were aged. Subsampling of random lengthfrequency … (LF)…
Chlorophyll fluorescence was used to measure changes in the maximum fluorescence yield (F0m) and effective quantum yield (F/F0m ) of Antarctic macroalgae in response to dissolved copper.
Long term acoustic records of underwater sound can be used to assess the timing of migrations, peak periods of … relative abundance, and seasonality and overlap of different species’ presence over large spatial scales.
Background: Poorly preserved biological tissues have become an important source of DNA for … a wide range of zoological studies. Measuring the quality of DNA obtained from these samples is … often desired; however…
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…
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…
In 1999 the Glaciology Program of the Australian Antarctic Division initiated a 5-year study of … glaciological investigations into the interaction between the Amery Ice Shelf and the underlying … ocean. The principle objectives of this project are:
The efficient sound carrying properties of the ocean and the vocal nature of many marine … mammals provide an excellent means to monitor these often difficult to study animals.
A video system with dual camera capability (sideward, and downward looking) was … deployed within and below the Amery Ice Shelf, East Antarctica. Although the system had no … real time image transmission capability, video imagery was obtained at two hot water drilled … borehole sites AM03 (70° 33.
A survey of the size characteristics of the population of icebergs around the whole of the … Antarctic coastline was carried out using synthetic aperture radar images. A total of 36…
We have sequenced the 18S–26S nuclear ribosomal DNA ITS region from the genome of nine … different moss species from the Ross Sea region of Antarctica. This relatively quick and simple technique … enables these species to be readily distinguished, facilitating their taxonomic identification.
In Australia more than 300 vertebrates, including 43 insectivorous bat species, depend on hollows in … habitat trees for shelter, with many species using a network of multiple trees as roosts. We used roost-switching … data on white-striped freetail bats (Tadarida australis; Microchiroptera:
Antarctic macroalgae survive extended periods of darkness followed by rapid and extreme increases in irradiance when sea-ice … breaks out in summer. Algae from dark, ice-covered locations had low values of saturating irradiance (Ek: 4–19 mmol photons … m2 s1)…
The Antarctic Pack-Ice Seals program (APIS) is an initiative of the SCAR Expert Group on Seals aimed at quantifying the role of pack-ice seals (crabeater, leopard and Ross) in the Southern Ocean. A central feature of APIS was a synoptic…
The International Whaling Commission (IWC) and Southern Ocean Global Ocean Ecosystem Dynamics (SO GLOBEC) program are collaborating on an ecosystem approach to understand baleen whale distributions in Antarctica.
Preliminary results from the IWC collaborative studies conducted on the 2001 winter survey and the 2002 late summer mooring cruise with the US SO GLOBEC program are presented. Sea-ice cover was significantly more extensive earlier in the season in 2002.
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).