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118 Titles Match Your Query
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1. Physico-chemical properties of sea ice in relation to biological activity from ice cores taken along a transect in McMurdo Sound [K131_1999_2003_NZ_1]
The interactions between biological activity and physico-chemical characteristics of landfast first year sea ice were investigated in McMurdo Sound as a multiparametric analysis of the physico-chemical ...


2. Population dynamics of Weddell seals (Leptonychotes weddelli) in McMurdo Sound and the Victoria Land Coast: movement in the area, sub-adult populations, age structure and reproductive condition [K017_1960_1973_NZ_1]
The population parameters of the Weddell seal in McMurdo Sound was initiated in the 1965-66 season following a 4 year study of the reproductive cycle of the Weddell seal and 2 years of tagging by ...


3. R/V Nathaniel B. Palmer NBP0402 - Collaborative Research: Cross-slope exchanges at the Antarctic Slope Front (ANSLOPE) [NBP0402]   PARENT METADATA
The NSF-supported research icebreaker Nathaniel B. Palmer operates year-round in support of the U.S. Antarctic Program, carrying out global change studies in biological, chemical, physical, and oceanographic ...


4. New Harbor and Windless Bight Seismic Data for ANDRILL [ANDRILL_Geophys_surv_2001-2002]
This was a joint project between scientists and scientific programmes of the US, UK, Germany, and New Zealand to collect geophysical and site survey data in support of the ANDRILL Program. ...


5. Obtaining action spectrum and biological weighting functions for UVR effects on larvae of a suite of Antarctic invertebrates, McMurdo Sound [K068_2004_2006_NZ_1]
The effect of UVR on biological systems is wavelength dependent. Action spectrum for DNA damage is an essential component of understanding the effects of increased UVB on a range of Antarctic invertebrate ...


6. Oceanographic and sea ice measurements to determine the influence of platelet ice on the freezing of land fast sea ice [K131_2003_2004_NZ_1]
An understanding of the formation of platelet ice in McMurdo Sound and consequently its influence on the formation of land fast sea ice was investigated over a winter season when ice formation begins ...


7. Oxygen consumption rates and lactic acid levels of notothenioid fish to determine the exercise physiology of how a low water temperature has affected their ability to swim [K057_1985_1986_NZ_1]
Notothenioid fish live in a relatively constant temperature of -1.86°C. In order to survive at this temperature they have undergone several modifications to their biochemical makeup. The ability of ...


8. Pelagic ecosystem investigations of McMurdo Sound: plankton species composition and density, ocean environmental factors, levels of seston, bacteria analysis and ice algae composition [K014_1979_1980_NZ_1]
Comparisons of water column productivity and processes was completed by comparing 4 sites including on the edge of the McMurdo Ice Shelf some 12km west of Cape Armitage, off Scott Base on the east ...


9. Seafloor bathymetry and sediment sampling from the southwest corner of McMurdo Sound [K042_1982_1983_NZ_3]
A seafloor bathymetry and sediment sampling program was conducted in McMurdo Sound aboard the USGS GLACIER to take deep water samples not accessible from the sea ice, to sample off Granite Harbour ...


10. Seismic profile survey of McMurdo Sound and Terra Nova Bay [K042_1974_1975_NZ_2]
As part of the Dry Valleys Drilling Project, the area of the McMurdo Sound drill hole was surveyed with a seismic survey profile and extended to cover the whole of the McMurdo Sound region to determine ...


11. Seismic refraction surveys in the McMurdo Sound region [K042_1964_1965_NZ_5]
The suitability of first arrival seismic refraction apparatus for surface structure studies was investigated at sites in the Wright, Taylor and Miers Vallyes and on Brown Peninsula. Results show that ...


12. Seismic, bathymetry and piston coring transects to determine sediment movement in the Cape Royds area [K041_1986_1987_NZ_3]
Seismic, bathymetry and piston coring transects were undertaken in the Cape Royds area to determine how sediment was moving over the sea floor of this area to the 900m deep Erebus basin offshore. ...


13. Simultaneous measurements of ocean current, temperature and salinity measurements to determine the oceanography of McMurdo Sound [K131_2004_2007_NZ_1]
McMurdo Sound forms a natural and accessible laboratory for understanding the fundamental processes that underpin ice-ocean interactions. How changes in the sea ice sheet affect the physical oceanography ...


14. Strain meter measurements of sea ice under the influence of a moving load from the sea ice runway near McMurdo Station [K131_1983_1985_NZ_1]
Using a strain meter, with a 500 mm gauge length, the influence of a moving load on the strain produced in sea ice was measured firstly by driving a vehicle (ford pickup) on the sea ice runway near ...


15. Strain meter measurements on an actively breaking ice edge to investigate sea wave/ice interactions and the break up processes of sea ice [K131_1994_1998_NZ_3]
The interaction between the ocean wave field and the sea ice in the marginal fast ice zone was measured by first designing and testing a prototype strain meter especially designed for operation near ...


16. Surface exposure ages from Hjorth Hill, McMurdo Sound, Antarctica [surfexpdata-2003]
This data base contains information on cosmogenic helium-3 and beryllium-10 surface exposure dates on Ross Sea Drift moraine boulders from Hjorth Hill, McMurdo Sound, Antarctica ...


17. Surface snow samples containing aeolian dust recovered from 40 sites on first and multi-year McMurdo sea ice using ultra clean methodology in November 2009 [K049_2009_2010_NZ_1]
55 surface snow samples containing aeolian dust were collected from the McMurdo sea ice using ultra clean methodology along two East-West transects and one North-South transect. Duplicate samples ...


18. Synergistic Effects of Ocean Acidification and Warming on Larval Development in Antarctic Fishes" [USAP-1142122]
Ocean acidification and increased temperatures are projected to be the primary impacts of global climate change on polar marine ecosystems over the next century. While recent research has focused ...


19. Temperature and salinity profiles of the water column during platelet ice formation and analysis of the structure and isotopic content of platelet ice [K131_1999_2000_NZ_2]
Platelet ice is a particular sea ice type that is prevalent in McMurdo Sound, probably due to the proximity of the Ross Ice Shelf. There are many details about the formation of platelet ice which ...


20. The ANDRILL drilling project - 1284.87 m and 1138.54 m sediment cores from below the McMurdo/Ross Ice Shelf [K001_ANDRILL]   CHILD METADATA
ANDRILL (ANtarctic DRILLing project) is a multinational (Germany, Italy, New Zealand and USA) initiative to investigate the climate and tectonic history of Antarctica by recovering deep sediment ...


21. The Ross Sea Iceberg Project [K201_1983_1989_NZ_1]
The Ross Sea Iceberg Project aims to determine the distribution, sources, movement and sizes of icebergs in the Ross Sea. These characteristics have previously not been well known but are important ...


22. The ability to photorepair UV damaged DNA and the rate of photoreactivation in Antarctic species compared with temperate and tropical species [K068_2004_2006_NZ_2]
Time course experimental exposure of the Antarctic sea urchin Sterechinus neumayeriembryos to UVR was carried out in a lab to examine the kinetics of UVR induced damage to DNA. Embryos (freshly fertilized ...


23. The ability to photorepair UV damaged DNA and the rate of photoreactivation in two Antarctic Starfish Odontaster validus and Odontaster meridionalis compared with a New Zealand species Odontaster benhami [K068_2004_2006_NZ_3]
Photorepair rates in New Zealand temperate species of echinoderms show a much higher DNA photorepair than the Antarctic species Sterechinus neumayeri. To examine the reason for low rates of DNA photorepair ...


24. The activity and expression of DNA repair/photoreactivation with the enzyme photolyase in the sea urchin Sterechinus neumayeri, McMurdo Sound [K068_2003_2004_NZ_1]
An important aspect of understanding the impact of increased UVR is assessing the ability of Antarctic species to repair DNA damaged through the process of photoreactiviation or photorepair. To repair ...


25. The breeding behaviour (territorial behaviour, male quality, movement and mating success) of male and female Weddell seals in relation to reproductive success during the breeding season [K027_1997_2001_NZ_1]
The breeding behaviour of the Weddell seal, Leptonychotes weddelli at the Turtle Rock colony in McMurdo Sound was studied over four breeding seasons. The aim was to quantify the male and female behaviour ...


26. The characteristics of an isolated in situ Pagothenia borchgrevinki heart: heart rate and pressure, the effects of drugs, innervation of the heart and biochemical work of the blood and muscle tissue [K057_1996_1997_NZ_3]
The characteristics of an isolated in situ fish heart was investigated. A Pagothenia borchgrevinki fish was killed and its heart was exposed and isolated from its blood supply, but left in place ...


27. The control of blood flow and the effects of drugs on the contractile forces exerted by blood vessels in the gills of Pagothenia borchgrevinki [K057_1995_1996_NZ_1]
The control of blood flow through the gill of a notothenioid fish, Pagothenia borchgrevinki, was examined by isolating a gill arch and perfusing it with saline. The effects of drugs on the afferent ...


28. The control of blood flow through the gills and the effects of a number of vasoactive drugs on blood flow and oxygen uptake in two Antarctic fish, Pagothenia borchgrevinki and Trematomus bernacchii [K057_1996_1997_NZ_1]
The extracorporeal loop technique was used to measure oxygen levels of the blood, pre and post-branchial blood pressure, heart rate, blood flow and from these measurements stroke volume of the heart ...


29. The direct effects of UV radiation on embryo and larval development and survival, and DNA damage of Sterechinus neumayeri [K068_2002_2006_NZ_2]
Gastrulation is a critical point in the development of an embryo. Damage to embryos prior to gastrulation via UVR effects on cytokinesis or DNA will have a dramatic negative effect on embryo survival. ...


30. The distribution of path lengths taken by light as it scatters through sea ice [K132_1990_1993_NZ_1]
The spatial spreading of light introduced at a point on the surface of the ice and the temporal spreading of a brief pulse of light injected at a point was measured to clarify the details of the interaction ...


31. The dynamics of red blood cell release and uptake by the spleen and the control of red blood cell swelling from the effects of stress in two species of Antarctic fish, Pagothenia borchgrevinki and Trematomus bernacchii [K057_1996_1997_NZ_2]
In vitro experimentation determined that red cell swelling is a consequence of activation of a Na+/H+ antiporter located on the red cell membrane. The antiporter is controlled by a β-adrenoceptor ...


32. The effect of temperature and hypoxia on the metabolic rate and specific dynamic action of feeding of the giant nemertean worm Paraborlasia corrugatus [K057_2002_2003_NZ_1]
The giant nemertean worm Paraborlasia corrugatus is an important member of the benthic community where it is both an opportunistic scavenger and an active predator. Previous work has shown the animal ...


33. The effects of increased temperature on the physiological variable (heart rate, respiratory frequency, oxygen consumption, blood pressure, etc) of 2 Antarctic fish: Pagothenia borchgrevinki, Trematomus bernacchii [K057_2002_2003_NZ_2]
The effects of increased temperature on physiological variables in two Antarctic fish Pagothenia borchgrevinki (pelagic) and Trematomus bernacchii (sedentary) was investigated using a new technique ...


34. The functioning of the spleen in the Antarctic fish Pagothenia borchgrevinki [K057_1994_1995_NZ_2]
The spleen of notothenioids releases red blood cells during times of stress to increase oxygen uptake. The more red blood cells in the blood, the more viscous it is and the harder it is to pump around ...


35. The fundamental physiology and biology processes of Sterechinus neumayeri embryos and larvae and how they are affected by increased UV radiation, McMurdo Sound [K068_2007_2008_NZ_1]
Three key processes in the embryos and larvae of the sea urchin Sterechinus neumayeri were examined to determine how they respond to environmental changes. In situ experiments were carried out at ...


36. The muscle histochemistry and characterization of different metabolic types in fin and trunk muscles investigated on Antarctic fish [K057_1983_1984_NZ_1]
The muscle histochemistry and characterization of different metabolic types in fin and trunk muscles was investigated on Antarctic fish. Frozen sections were cut and examined and interactions and ...


37. The permeability of sea ice to brine from fast ice at Davis Station and McMurdo Sound [K131_1999_2000_NZ_1]
The permeability of sea ice to brine under naturally occurring conditions was investigated. The data is important for determining the rate at which nutrients are supplied to sea ice algae and the ...


38. The population dynamics and energetics of a species of pelagic Antarctic fish, Pagothenia borchgrevinki - length, weight, stomach content, parasites, fecundity, pattern of feeding, respiration experiments [K014_1979_1980_NZ_3]
The population dynamics and energetics of a species of pelagic Antarctic fish, Pagothenia borchgrevinki was studied. Fish were captured using silver lures with treble hooks and fish traps baited with ...


39. The rates of blood flow and oxygen uptake in the gills of the Antarctic fish Pagothenia borchgrevinki [K057_1994_1995_NZ_1]
Blood flow and oxygen uptake at the gills of Antarctic fish was examined using an extracorporeal loop that links the blood supply of the fish between the ventral and dorsal aorta so that continuous ...


40. The resistivity at depth of sea ice from McMurdo Sound and measurements of the depth of the percolation layer [K131_2000_2001_NZ_1]
The resistivity at depth of sea ice was measured in McMurdo Sound to give an indirect way of measuring the depth of the percolation layer. This layer is where the sea ice becomes much more permeable ...


41. The respiratory and metabolic activity of a nematode worm found in the body cavity of Antarctic fish and Weddell seals [K057_1999_2000_NZ_1]
The respiratory ability of a nematode worm at different temperatures up to 38°C that live in the body cavity of Antarctic fish and ultimately with the final host being a Weddell seal was examined. ...


42. The role of the spleen in producing red blood cells during stress (measurements of haematocrit, haemoglobin, chloride, adrenaline conc., spleen mass) in Antarctic fish (Pagothenia borchgrevinki, Trematomus bernacchii) [K057_1991_1992_NZ_1]
The effects of stress (both hypoxia and exercise) on haematocrit in Antarctic fish was investigated with the aim to examine red cell release from the spleen under conditions of stress. The spleen ...


43. The structure (temperature, salinity, density and heat capacity) and transmissivity of sea ice [K132_1989_1990_NZ_1]
The transparency of sea ice to UV radiation was measured to determine the effects of enhanced UV levels on Antarctic life. The under ice radiance is controlled by the transmission of the sea ice to ...


44. The swimming ability (mechanics, oxygen consumption, level of hormones, the effects of temperature, lactic acid production) of the Antarctic fish Pagothenia borchgrevinki [K057_1998_2002_NZ_1]
Antarctic fish kept in the aquarium system in the wet lab were videotaped while swimming and the data was analysed frame by frame to determine swimming mechanics in these animals. Fish were also introduced ...


45. The thermal conductivity and diffusivity of first year sea ice measured as a temperature depth profile in developing sea ice during the winter months in McMurdo Sound [K131_1994_1998_NZ_2]
Measurements of heat flows and hence thermal diffusivity and thermal conductivity in sea ice was measured in the absence of thermal radiation (i.e. sunlight, which dumps heat at depth in the ice and ...


46. The use of nuclear magnetic resonance to measure water content (a component of brine volume) and the diffusivity of liquid water in sea ice [K131_1994_1998_NZ_1]
Nuclear Magnetic Resonance (NMR) is able to discriminate signals arising from nuclei hosted by molecules in the solid state, from those in a liquid state and was therefore used to examine the state ...


47. The vasoconstrictor response of blood vessels from two Antarctic fish Trematomus bernacchii and Dissostichus mawsoni and a temperate species Paranotothenia angustata [K057_1998_1999_NZ_4]
Available evidence suggests that animals living in extreme cold are unusual in having a non-catecholamine based stress response, relying more on neural than hormonal control of the cardiovascular ...


48. Thick and thin sections and salinity and temperature profiles from natural refrozen and artificially refrozen sea ice cracks [K131_2001_2003_NZ_1]
Large marine organisms, specifically foraminifers and copepods, were collected from the sea ice, brine and water column from thin ice north of Beaufort Island at the beginning of the warming period ...


49. UV radiation penetration into the marine ecosystem of McMurdo Sound [K068_2002_2006_NZ_1]
UV radiation transmission measurements on sea ice surface and through the annual sea ice into the underlying water column were made during Antarctic spring months (October - November) in conjunction ...


50. UV radiation penetration through sea ice & effects on embryo & larval development, survival & damage of the sea urchin Sterechinus neumayeri, Antarctic Starfish Odontaster validus & Odontaster meridionalis in Ross Sea [K068_2002_2009_NZ_1]
UV radiation transmission measurements on sea ice surface and through the annual sea ice into the underlying water column were made during Antarctic spring months (October - November) along with ...


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