Antarctic genomics
With the development of genomic science and its battery of technologies, polar biology stands on the threshold of a revolution, one that will enable the investigation of important questions of […]
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Read more of: Antarctic genomics
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The HSP70 heat shock response in the Antarctic fish Harpagifer antarcticus.
Read more of: The HSP70 heat shock response in the Antarctic fish Harpagifer antarcticus.Members of the HSP70 gene family comprising the constitutive (HSC70) and inducible (HSP70) genes, plus GRP78 (Glucose-regulated protein 78 kDa) were surveyed for expression levels via Q-PCR after both an […]
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Lack of an HSP70 heat shock response in two Antarctic marine invertebrates
Read more of: Lack of an HSP70 heat shock response in two Antarctic marine invertebratesMembers of the HSP70 gene family comprising the inducible (HSP70) genes and GRP78 (glucose-regulated protein 78 kDa) were identified in an Antarctic sea star (Odontaster validus) and an Antarctic gammarid […]
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Evolution of the deep and bottom waters of the Scotia Sea, Southern Ocean, during 1995-2005
Read more of: Evolution of the deep and bottom waters of the Scotia Sea, Southern Ocean, during 1995-2005The Southern Ocean hosts the formation of the densest layers of the oceanic overturning circulation, and provides a climatically sensitive element of deep ocean ventilation. An oceanographic section across the […]
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An investigation into the mechanisms controlling seasonal speedup events at a High Arctic glacier.
Read more of: An investigation into the mechanisms controlling seasonal speedup events at a High Arctic glacier.Seasonal variations in ice motion have been observed at several polythermal ice masses across the High Arctic, including the Greenland Ice Sheet. However, such variations in ice motion and their […]
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Submarine pyroclastic deposits formed at the Soufrière Hills volcano, Montserrat (1995–2003): What happens when pyroclastic flows enter the ocean?
Read more of: Submarine pyroclastic deposits formed at the Soufrière Hills volcano, Montserrat (1995–2003): What happens when pyroclastic flows enter the ocean?The Soufrière Hills volcano, Montserrat, West Indies, has undergone a series of dome growth and collapse events since the eruption began in 1995. Over 90% of the pyroclastic material produced […]
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Autonomous underwater vehicles (AUVs) and investigations of the ice–ocean interface in Antarctic and Arctic waters
Read more of: Autonomous underwater vehicles (AUVs) and investigations of the ice–ocean interface in Antarctic and Arctic watersLimitations of access have long restricted exploration and investigation of the cavities beneath ice shelves to a small number of drillholes. Studies of sea-ice underwater morphology are limited largely to […]
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A doubling in snow accumulation in the western Antarctic Peninsula since 1850
Read more of: A doubling in snow accumulation in the western Antarctic Peninsula since 1850We present results from a new medium depth (136 metres) ice core drilled in a high accumulation site (73.59S,70.36W) on the south-western Antarctic Peninsula during 2007. The Gomez record reveals […]
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Airborne measurements in a stable boundary layer over the Larsen Ice Shelf, Antarctica
Read more of: Airborne measurements in a stable boundary layer over the Larsen Ice Shelf, AntarcticaWe present aircraft measurements of boundary-layer structure and surface turbulent fluxes from a flight over the Larsen Ice Shelf, Antarctica. Warm advection, associated with föhn flow, led to the formation […]
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Antarctic terrestrial life – challenging the history of the frozen continent?
Read more of: Antarctic terrestrial life – challenging the history of the frozen continent?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 […]
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Energetic cost of synthesizing proteins in Antarctic limpet, Nacella concinna (Strebel, 1908), is not temperature dependent
Read more of: Energetic cost of synthesizing proteins in Antarctic limpet, Nacella concinna (Strebel, 1908), is not temperature dependentThe energetic cost of protein synthesis is thought to account for a significant proportion of total metabolism. However, attempts to estimate the energetic cost of synthesizing proteins have resulted in […]
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Food choice of Antarctic soil arthropods clarified by stable isotope signatures
Read more of: Food choice of Antarctic soil arthropods clarified by stable isotope signaturesAntarctic soil ecosystems are amongst the most simplified on Earth and include only few soil arthropod species, generally believed to be opportunistic omnivorous feeders. Using stable isotopic analyses, we investigated […]