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51. Measurements of specific dynamic action (energy required to digest and assimilate food) via oxygen consumption and nitrogen excretion rates [K057_1998_1999_NZ_5]
Specific dynamic action (SDA) refers to the energy required to digest and assimilate food. This is measureable in terms of increased oxygen consumption and in some species of fish can represent a ...


52. Measurements of spectral transmission and backscattering of light in first year sea ice, Tent Island, McMurdo Sound [K132_1985_1987_NZ_1]
In situ measurements of the the spectral transmission and backscattering of light was conducted on first year ice to characterise the optical properties of sea ice. The average scattering length and ...


53. Measurements of the UV radiation (Blue, Violet, UVA and UVB) falling on sea ice in McMurdo Sound, quantification of sea ice algae and the effect of snow thickness on the transmissivity of sea ice to UV radiation [K041_1995_1996_NZ_1]
The relative amounts of visible, near and far UV radiation (Blue, Violet, UVA and UVB) falling onto sea ice in McMurdo Sound was measured at a site well cantered in the ice, i.e. not at the ice edge. ...


54. Measurements of the amount of UV and visible radiation falling onto sea ice and the effects of enhanced UV radiation levels on sea ice algae [K136_1991_1992_NZ_1]
Sea ice algae are speculated to be considerably vulnerable to the effects of enhanced UV from the ozone hole during the Antarctic spring. The amount of UV and visible radiation falling onto the sea ...


55. Measurements of the effect of temperature and feeding on the blood flow through major arteries of the Antarctic fish Pagothenia borchgrevinki [K057_2007_2008_NZ_2]
The Antarctic fish Pagothenia borchgrevinki has been shown to be able to survive at raised temperatures. An increase in temperature causes an increase in metabolic rate which requires an increased ...


56. Measurements of the effects of UV-B on sea ice algal growth and productivity [K131_1994_1998_NZ_4]
The effects of UV-B on the growth and productivity of sea ice algae was investigated with two experiments. The growth of sea ice algae was investigated in situ under four different light treatments ...


57. Measurements of the effects of temperature on venous blood pressure in the Antarctic fish Pagothenia borchgrevinki [K057_2007_2008_NZ_3]
The Antarctic fish Pagothenia borchgrevinki has been shown to be able to survive at raised temperatures. Cardiac filling in vertebrates is influenced by venous return which itself is influenced by ...


58. Measurements of the extent of hypertension (aortae blood pressure, heart rate, oxygen tension of the blood and morphometrics of the heart) in Antarctic fish affected with x-cell disease [K057_2003_2005_NZ_1]
The ability of x-cell affected fish to swim was determined using a swimming tunnel closed box respirometer and measuring maximum oxygen consumption and recovery post exercise. In severe cases of x-cell ...


59. Measurements of the fate of carbon dioxide in the blood of the Antarctic fish Pagothenia borchgrevinki [K057_1998_1999_NZ_1]
Using purpose built tonometers, the carbon dioxide (CO2) dynamics in whole blood and plasma of the Antarctic fish Pagothenia borchgrevinki was determined. The tonometers maintained samples of blood ...


60. Measurements of the physical properties of Antarctic fast ice and their variations throughout the growth season [K213_1986_1987_NZ_1]
The physical properties of Antarctic fast ice were investigated throughout a full year of growth. The aim of the project was three fold; 1) to document the basic physical properties of Antarctic fast ...


61. Measurements of the tide level, current, temperature and salinity of McMurdo Sound and examination of the biological biomass in the water column [K007_1970_1974_NZ_1]
A measurement of the tides and currents in McMurdo Sound was conducted over several seasons. Current measurements were first made in McMurdo Sound by Hodgson (1907) during the stay of the Discovery ...


62. Measurements of underwater acoustics in McMurdo Sound [K012_1970_1971_NZ_1]
A two man party spent 6 weeks studying the attenuation and transmission of underwater sound in Antarctic waters and set up equipment for the continuous recording of ambient sea noises, continuous ...


63. Meaurements of heart and breathing rates to determine the Antarctic fish Pagothenia borchgrevinki's response to hypoxia and an increase in temperature [K057_2007_2008_NZ_1]
The Antarctic fish Pagothenia borchgrevinki has been shown to be able to survive at raised temperatures. However, survival at elevated temps is linked to tissue hypoxia (inadequate supply of oxygen) ...


64. Microscopic examination of marine organisms (larger than 45 µm) collected from the sea ice, brine and water column in McMurdo Sound and the Ross Sea [K131_2001_2002_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 ...


65. Miniature end plate currents recorded from Pagothenia borchgrevinki muscle at different temperatures and measurements of the function of the oculomotor (eye movement response) control system [K012_1981_1982_NZ_1]
Miniature end plate currents (MEPC) were recorded from fish muscle of Pagothenia borchgrevinki to test the hypothesis that the high proportion of unsaturated lipids will result in increased membrane ...


66. 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. ...


67. 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 ...


68. 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 ...


69. 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 ...


70. 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 ...


71. 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 ...


72. 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 ...


73. 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 ...


74. 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 ...


75. 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 ...


76. 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 ...


77. 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. ...


78. 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 ...


79. 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 ...


80. 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 ...


81. 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 ...


82. 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 ...


83. 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 ...


84. 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 ...


85. 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 ...


86. 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 ...


87. 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 ...


88. 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 ...


89. 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 ...


90. 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 ...


91. 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 ...


92. 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. ...


93. 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 ...


94. 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 ...


95. 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 ...


96. 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 ...


97. 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 ...


98. 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 ...


99. 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 ...


100. 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 ...


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