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Two vascular plant species (hair grass Deschampsia antarctica … and herb Acaena magellanica) from sub-Antarctic Heard Island … were sampled on 5 days between December 2003 and February … 2004.

Over the past 50 years the sub-Antarctic has experienced increases in temperature and radiation. Little scientific attention has been paid to the ecophysiological response of vascular plant species growing on these islands and it is unclear what impact climate change may have on these species.

Seasonal changes in the photosynthetic and photoprotective pigment content of three species of Antarctic moss; Grimmia antarctici…

Selenium is an essential micronutrient but its role in oceanic biology is relatively unknown. Whilst this essentiality has been shown in laboratory work for some marine phytoplankton … species, the concentration, chemical species and incorporation methods are unknown.

Twenty one XBT sections across the Antarctic Circumpolar Current (ACC) between New … Zealand and Antarctica, collected in the frame of the Italian CLIMA project (1994-2006), are … used to study the upper ocean thermal structure and to infer the baroclinic transport. The … Subantarctic Front (SAF)…

A sampling strategy to estimate the annual mean CO2 uptake by the Southern Ocean was … developed by applying 2D Fourier transforms and signal-to-noise ratios to the simulated airsea … CO2 fluxes and ∆pCO2 from an ocean biogeochemical model driven with NCEP-R1.

The CLIVAR (Climate Variability and Predictability)/CliC (Climate and Cryosphere)/ SCAR … (Scientific Committee on Antarctic Research) Southern Ocean region panel is charged with … refining and implementing the science plans of CLIVAR, CliC and SCAR in the Southern … Ocean Sector.

The distribution of carbon dioxide partial pressure (pCO2) in surface seawaters South of … Tasmania has been compared for two very different years; summer 1996/1997 and summer … 2002/3. Field data were obtained in the summer of 2002/3 during cruises onboard the S.S.

Past and recent dissolved iron (dFe) and total dissolvable iron (TDFe) datasets from the Atlantic Meridional Transect (AMT) program are presented.

HPLC-pigment measurements, Production vs Irradiance and daily primary production experiments were carried out on the Kerguelen Plateau during the KEOPS cruise in January and February 2005. The respective contribution of three phytoplankton size classes, namely micro- (> twenty micron)…

The distribution of dissolved (D) and acid-dissolvable (AD) Fe, Ni, Cu and Pb in upper water (0-300 m depth) was determined along a transect in the Australia sector (140E) of the Southern Ocean during three cruises conducted from November 2001 to March 2002.

: We have conducted two hydrographic cruises crossing Deep Western Boundary Current (DWBC) of Antarctic Bottom Water (AABW) in Australia Antarctic Basin and measured chlorofluorocarbons (CFCs). Western region of the basin (around Kerguelen Plateau)…

: P vs E experiments determining photosynthetic parameters and daily primary production were carried out east of Kerguelen Island during the KEOPS cruise in January and February 2005. The Kerguelen Plateau region is naturally enriched with iron, while deeper waters (>1000m) nearby may not be.

: The KErguelen : Ocean and Plateau compared Study (KEOPS) examined the origin of elevated phytoplankton biomass over the Kerguelen plateau in the Southern Ocean in mid-summer (Jan. - Feb. 2005).

The isotopes of nitrate, which show different dynamics than nitrate concentration during physical transport and nitrate assimilation, provide a complementary constraint in the effort to understand nutrient transport and biogeochemical fluxes in the Southern Ocean. For instance…

: As part of the VERTIGO research program, samples for nitrogen (d15N) and oxygen (d18O) isotopic signatures in nitrate were analyzed from depth profiles and surface transects from the northwest pacific, near station K2 and the subtropical gyre, near station ALOHA. Contrasting productivity, ecology…

Vertical temperature profiles collected by king penguins and elephant seals are used to map … oceanographic fronts south of Australia and New Zealand. Independently, the Southern … Ocean front locations are derived using satellite synoptic maps of sea surface height (SSH).

A second East Antarctic Baseline Regional Oceanography Krill and Environment survey, termed BROKE-West, was conducted January 10th – February 25th 2006 and covered … CCAMLR Area 58.4.2 west of the Princess Elizabeth Trough in the Weddell-Enderby Basin.

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.

Detection of long-term climate change requires knowledge of natural variability in the oceanatmosphere … system. In the Southern Hemisphere, climate variability is evident on time-scales … of days to centuries, yet we know relatively little about how this forces interior ocean … fluctuations…

Surface carbon dioxide (CO2) observations are integral to understanding the role of the … Southern Ocean in the global carbon cycle, and to developing reliable predictions of … biogeochemical responses to altered climatic conditions. Carbon dioxide (CO2)…

The oxygen isotopic record obtained from Globigerina bulloides, Globorotalia inflata, and Neogloboquadrina pachyderma … (s.) was analysed for 5 sediment traps moored in the Southern Ocean and Southwest Pacific. The traps extend from Subtropical … to the Polar Frontal environments…