6865 to 6876 of 13722 results
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Genetic evidence of population heterogeneity and cryptic speciation in the ommastrephid squid Martialia hyadesi from the Patagonian Shelf and Antarctic Polar Frontal Zone
Read more of: Genetic evidence of population heterogeneity and cryptic speciation in the ommastrephid squid Martialia hyadesi from the Patagonian Shelf and Antarctic Polar Frontal ZoneHorizontal starch gel electrophoresis was used to investigate levels of genetic differentiation between four samples of the nominate squid species Martialia hyadesi Rochbrune and Mabille, 1889, obtained from regions of […]
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High-latitude ocean ventilation and its role in Earth’s climate transitions
Read more of: High-latitude ocean ventilation and its role in Earth’s climate transitionsThe processes regulating ocean ventilation at high latitudes are re-examined based on a range of observations spanning all scales of ocean circulation, from the centimetre scales of turbulence to the […]
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Population dynamics of marine benthic invertebrates in Antarctic and subantarctic environments: are there unique adaptations?
Read more of: Population dynamics of marine benthic invertebrates in Antarctic and subantarctic environments: are there unique adaptations?Data on the growth (20 species) and productivity (19 species) of Antarctic and subantarctic macrobenthos were compiled from published and unpublished sources. Differences in the production/biomass (P/B) ratio between Antarctic, […]
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Midlatitude ionospheric D region: height, sharpness and solar zenith angle
Read more of: Midlatitude ionospheric D region: height, sharpness and solar zenith angleVLF radio amplitude and phase measurements are used to find the height and sharpness of the D region of the ionosphere at a mid- to high geomagnetic dip latitude of […]
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Characteristics of mesospheric gravity waves over Antarctica observed by Antarctic Gravity Wave Instrument Network imagers using 3-D spectral analyses
Read more of: Characteristics of mesospheric gravity waves over Antarctica observed by Antarctic Gravity Wave Instrument Network imagers using 3-D spectral analysesWe have obtained horizontal phase velocity distributions of the gravity waves around 90 km from four Antarctic airglow imagers, which belong to an international airglow imager/instrument network known as ANGWIN […]
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Links between bacteria derived from penguin guts and deposited guano and the surrounding soil microbiota
Read more of: Links between bacteria derived from penguin guts and deposited guano and the surrounding soil microbiotaPenguins are an important indicator of marine ecosystem health and a major contributor of nutrients to terrestrial ecosystems in Antarctica. Their stomach microbiota is influenced by both the prey consumed […]
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The characteristics of the lower stratospheric gravity wave field above Halley (75°S, 26°W), Antarctica, from radiosonde observations
Read more of: The characteristics of the lower stratospheric gravity wave field above Halley (75°S, 26°W), Antarctica, from radiosonde observationsDaily radiosonde observations between 2003 and 2013 from Halley research station, Antarctica (75°S, 26°W) are used to determine climatologies of gravity wave properties in the lower stratosphere (between 15 km […]
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Water flux, body composition, and metabolic rate during molt in female southern elephant seals (Mirounga leonina)
Read more of: Water flux, body composition, and metabolic rate during molt in female southern elephant seals (Mirounga leonina)Tritiated water dilution was used to measure changes in the proximate body composition of adult female southern elephant seals at the end of lactation and at the beginning and end […]
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Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth history
Read more of: Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth historyGrowth of upper canine teeth of male Antarctic fur seals (Arctocephalus gazella) which died of natural causes at Bird Island, South Georgia, was quantified from measurements of annual layers in […]
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