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96 Titles Match Your Query
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51. 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 ...


52. Photosynthesis, fluorescence and microclimate measurements of several species of mosses and lichens from Botany Bay at Granite Harbour [K024_1991_1992_NZ_1]
The photosynthetic rate of Antarctic mosses and lichens was studied with investigations into the effects of high levels of light radiation and of possible UV effects. The mosses Pottia heimii, Bryum ...


53. Photosynthetic physiology (CO2/O2 exchange, optimum temperature and light levels) of common bryophytes species that grow in the melt streams from glaciers in the Dry Valleys [K024_1979_1980_NZ_3]
Previous work (by Rostofer, 1970) covered the photosynthetic physiology of two common bryophyte species (Bryum antarcticum and B. Argenteum) found in the melt-streams from glaciers in the Dry Valleys ...


54. Physical, chemical and biological characteristics of soils from the upper Garwood Valley, Ross Sea Region, 2002-2006. [K052_2004_2005_NZ]   PARENT DIF
These data consist of a number of subsets of soil samples gathered from the upper Garwood Valley in January 2002, January 2003, January 2005 and January 2006. Replicate randomly-located samples of ...


55. Physical, chemical and biological characteristics of soils from the western Wright Vanda (Lake Vanda district), Ross Sea Region, 2006 [K052_2005_2006_NZ]   PARENT DIF
These data consist of a number of subsets of soil samples gathered from the Wright Valley in January 2006. Replicate randomly-located samples of surface soils to 10 cm depth have been gathered from ...


56. Population regulation and demography in Adelie penguins (Pygoscelis adeliae) at Cape Hallett. [K122_2004_2005_NZ_3]
This study aims to investigate the factors regulating population size and colony distribution of Adelie penguins (Pygoscelis adeliae) at Cape Hallett. Data was collected on Adelie penguin reproductive ...


57. Population regulation and demography in Adelie penguins (Pygoscelis adeliae) at three penguin colonies on Ross Island (Cape Bird, Cape Crozier and Cape Royds) [K122_1994_2012_NZ_2]
This study aims to investigate the factors regulating population size and colony distribution of Adelie penguins (Pygoscelis adeliae) at three colonies on Ross Island (Cape Royds, Bird and Crozier) ...


58. Population regulation and demography in Adelie penguins (Pygoscelis adeliae) at three penguin colonies on Ross Island (Cape Bird, Cape Crozier and Cape Royds) - K122_2004_2005_NZ_2 [K122_2004_2005_NZ_2]
This study aims to investigate the factors regulating population size and colony distribution of Adelie penguins (Pygoscelis adeliae) at three colonies on Ross Island (Cape Royds, Bird and Crozier) ...


59. Production and succession investigations of phytoplankton and zooplankton from onshore, tidecrack, ice floes and epibenthic samples at Cape Bird [K014_1977_1978_NZ_1]
The phytoplankton and zooplankton was samples at Cape Bird to determine seasonal trends in the populations structure of onshore communities, determine if a separate tidecrack community exists, the ...


60. Sea ice productivity in the Mertz Glacier Region [K043_2002_2004_NZ_1]
Eastern Antarctic sea ice algal biomass were measured in the spring of 2002, 2003 and 2004. Productivity was measured by 14C in 2002 and by oxygen electrodes in 2002 and 2004. Biomass was low, in ...


61. Soil, nematode, and springtail sample collection from Granite Harbour [K066_2009_2010_NZ_1]
The aim of this study was to determine aspects of the environmental physiology and phylogeography of Antarctic terrestrial invertebrates. Soil samples were collected from Granite Harbour for geochemical ...


62. Studies on the anaerobic sediments and underlying cyanobacterial mats from the McMurdo Ice Shelf [K081_1996_2000_NZ_2]
The pond ecosystems of the McMurdo Ice Shelf contain abundant growths of algae and cyanobacteria. The role of the anaerobic sediments underlying the cyanobacterial mats was investigated. Sediment ...


63. Systematic survey and abundance investigations of the microfauna (tardigrades, nematodes and rotifers) in the meltpools of the McMurdo Ice Shelf [K053_1987_1988_NZ_2]
Quantitative examinations of the microfauna associated with the algal felts in small melt pools on the McMurdo Ice Shelf in the vicinity of Bratina Island off the northen tip of Brown Peninsula was ...


64. The adaptation of cyanobacterial mats from the McMurdo Ice Shelf, Mt Discovery and the Alph River system to Antarctic environmental extremes [K081_1990_1991_NZ_1]
The microbial adaptations of the cyanobacterial mats of the ponds of the McMurdo Ice Shelf to the environmental extremes experienced at this location, including changes in temperature and salinity, ...


65. The amount of nitrogen in the biotic and abiotic systems at Cape Bird measured from evaporated water samples and wind blown inputs [K052_1982_1983_NZ_2]
The amount of nitrogen in the biotic (flora and fauna) and abiotic (soils, ice and snow) systems at Cape Bird was determined by taking water from melt streams, snow or ice, acidifying and evaporating ...


66. The bacterial biomass of sea ice from Seabees Hook, Cape Hallett region [K043_2003_2005_NZ_2]
A taxonomic assessment of sea ice bacteria abundance and their response to climate induced stress was investigated from the sea ice around Seabee Hook, Cape Hallett. Four sites at different points ...


67. The biomass, productivity and biodiversity of algae and bacteria in Granite Harbour and the physical parameters of their environment [K043_2008_2009_NZ_2]
The total biomass, productivity and biodiversity of algae and bacteria from the sea ice and the water column was investigated in Granite Harbour. Sampling sites in the Granite Harbour area were used ...


68. The biomass, productivity and biodiversity of algae and bacteria in Terra Nova Bay and the physical parameters of their environment [K043_2006_2008_NZ_1]
The total biomass, productivity and biodiversity of algae and bacteria from the sea ice and the water column was investigated in Terra Nova Bay. Sampling sites in the Terra Nova Bay area were used ...


69. The biomass, productivity and biodiversity of algae in the Cape Hallett region [K043_2003_2005_NZ_1]
The distribution and biodiversity of algae was assessed to enable possible future predictions of the effects of global warming. Sites (5 in the first season, 4 in the second) were established around ...


70. The biomass, productivity, physiology and grazing pressures of phytoplankton during the polar winter in the Ross Sea region [K043_2007_2008_NZ_1]
What happens to primary production during the long polar night was investigated in the Ross Sea region. Phytoplankton samples were obtained from the water column at Cape Armitage and Cape Evans. Phytoplankton ...


71. The changes in the physical, chemical and biological processes in melt water ponds during the late season freeze processes into the polar winter at Bratina Island [K081_2007_2008_NZ_2]
How the onset of winter conditions affects the physical and chemical conditions within the melt water ponds on the McMurdo Ice Shelf (of which summer information is available) and how these changes ...


72. The development of anaerobic enrichment cultures and measurements of the rates of methanogenesis, the turnover of 14C acetate and the degradation of substrates from sediment samples from Bratina Island [K141_1992_1994_NZ_1]
Life in ponds and tidal lagoons of the McMurdo Ice Shelf is dominated by benthic cyanobacterial mats. Anaerobic conditions occur beneath these productive mats. A study was conducted to investigate ...


73. The ecology (tidal and weather records, distribution and abundance of microbes and quantification of nitrogen transformation) of an Antarctic tidal lagoon and mudflats at Bratina Island, McMurdo Ice Shelf [K081_1992_1993_NZ_2]
A tidal lagoon at Bratina Island experiences a daily inundation with tidal height varying. Low tide reveals a network of ponds, streams and tidal flats that appear to be highly productive with all ...


74. The effect of temperature and sulphate availability on the terminal electron flow (to sulphide or methane) in anaerobic Antarctic sediments [K081_2001_2002_NZ_1]
Sediment was collected from a range of ponds from the McMurdo Ice Shelf and returned to New Zealand for laboratory studies. Samples were incubated in long term incubators to determine the relative ...


75. The effects of UVB on growth and productivity and photoadaptations of bottom ice algae at Cape Evans, McMurdo Sound [K136_1999_2002_NZ_1]
Sea ice hosts a large community of algae which is released into the food chain when the ice melts. The sea ice algae grow rapidly in the Antarctic spring at a time that coincides with the ozone hole ...


76. The effects of extreme environmental conditions on the feeding and respiration rates of the common rotifer Philodina gregaria from moraine ponds of the McMurdo Ice Shelf [K081_1995_1996_NZ_1]
Parts of the McMurdo Ice Shelf area is covered by freshwater ponds, many of which contain abundant growths of algae and cyanobacteria and few invertebrate species. The habitat is very variable in ...


77. The effects of increased PAR and UV on the xanthophyl cycle of Antarctic ice algae [K068_2005_2006_NZ_1]
The xanthophyll cycle is a photo-protection mechanism in phytoplankton which protects the photosynthestic machinery from damage by high light intensities. Sea ice algae in Antarctica live on the ...


78. The effects of increased flow on the distribution of nutrient sources and sinks and the physical, chemical and biological components in the Onyx River ecosystem [K081_1993_1996_NZ_1]
The waters of Lake Vanda, Wright Valley have risen at a rate of 1m per year. The rise was largely attributed to increased flows in its only significant inflow, the Onyx River. The effects of this ...


79. The extent and manner in which salts are excluded from pond water during ice formation: ice core analysis, weather data and water samples [K081_2001_2002_NZ_2]
The hypothesis that stratification in the ponds of the McMurdo Ice Shelf is induced during the freezing process, as salts are excluded from the ice matrix during freezing was investigated over several ...


80. The importance of aerial transport in the distribution of microbes, the role of dried mats as reservoirs of viable propagules and the assessment of the habitat for the germination, growth and persistence of propagules [K082_1990_1992_NZ_1]
The potential importance of dried cyanobacterial mats as sources of propagules for local dissemination was studied at Bratina Island (McMurdo Ice Shelf), Lake Fryxell (Taylor Valley) and Cape Crozier ...


81. The legacy model vs the subsidy model to explain soil organic matter in the McMurdo Dry Valleys [K052_2004_2006_NZ_1]   CHILD DIFs
The Dry Valleys of Victoria Land, Antarctica, contain naturally simple ecosystems operating under extreme climatic conditions. Nutrients are limited and are thought to come from external sources from ...


82. The mean size and mean number of microbial organism for soil samples collected from Heald, Hahn and White Island terrestrial soils and White Island marine sediment [K014_1978_1979_NZ_3]
Samples of soils collected from Heald, Hahn and White Island were ground in a mortar and pestle with 20ml distilled water. Agar films for subsequent counting were prepared from these soil suspensions. ...


83. The photosynthetic performance (photosynthesis response curves to light and water content at various temperatures) of the pale and dark forms of the lichen Usnea spacelata from Cape Royds [K024_1996_1997_NZ_4]
The photosynthetic performance of the fruticose lichen Usnea sphacelata was measured using advanced, climatised photosynthetic cuvettes at Scott Base. Individuals of the Usnea sp were identified and ...


84. The physical and biological structure of the water column in Lake Vanda and the influences to it from the inflow of the Onyx River [K081_1993_1996_NZ_2]
The waters of Lake Vanda, Wright Valley have risen at a rate of 1m per year. The rise was largely attributed to increased flows in its only significant inflow, the Onyx River. Prior to the first flows ...


85. The physical and geochemical parameters controlling algal production in Lake Vanda [K081_1980_1981_NZ_1]
The factors controlling algal production in Lake Vanda were investigated experimentally by nutrient bioassays and in situ radiotracer incubations. Photosynthetic profiles were measured through the ...


86. The presence and extent of interstitial meiofauna in sandy beaches and stream and coastal water sampling to determine the nutrient input to the sea from penguin colonies [K014_1974_1975_NZ_2]
The presence and extent of the interstitial meiofauna that developed in the sandy beach when the push-ice had melted or rafted out was investigated. The timing of melting was late and only a short ...


87. The rate of exchange of nutrients between the microbial mats and the overlying water column in Lake Hoare [K081_2000_2001_NZ_2]
Benthic chambers were deployed at 10m depth in Lake Hoare to determine the rate of exchange of nutrients between the microbial mats and the overlying water column. These comprised 5 each of opaque ...


88. The rates of benthic photosynthesis of microbial mats at low irradiances in Lake Hoare and Lake Fryxell, Taylor Valley [K081_2006_2007_NZ_2]
Photosynthesis rates of microbial mats were measured at a range of irradiances to determine the performance of mats at low irradiances at Lake Hoare and Fryxell. Underwater irradiance measurements ...


89. The response of microbial communities in the ponds of the McMurdo Ice Shelf to autumn-winter-spring freeze conditions (light levels, temperature, salinity, etc) [K081_1995_2000_NZ_1]
Parts of the McMurdo Ice Shelf area is covered by freshwater ponds, many of which contain abundant growths of algae and cyanobacteria and few invertebrate species. The habitat is very variable in ...


90. The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Granite Harbour [K043_2008_2009_NZ_3]
In the 2008/2009 season, samples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM ...


91. The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Terra Nova Bay [K043_2006_2008_NZ_4]
Samples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM rapid light curves to determine ...


92. The role of grazing on sea ice algae and sea ice bacteria by ciliates and flagellated (zooplankton) in Terra Nova Bay [K043_2006_2008_NZ_3]
Sea water was collected from a depth of 2 meters below the sea ice in the region of Gondwana Station in Terra Nova Bay. Initial measurements of chlorophyll along with presence and abundance of ciliates ...


93. The spatial and temporal variability of nutrients (nitrogen, phosporous, carbon) and plant biomass (cyanobacterial biofilms) on the McMurdo Ice Shelf ecosystem [K081_1987_1988_NZ_1]
The area near Bratina Island was studied by examining scales (large and small) of variability (spatial and temporal) of nutrients and plant biomass on the McMurdo Ice Shelf (MIS) with an aim to examine ...


94. The structure and environmental physiology of Antarctic cyanobacterial mats in the McMurdo Ice Shelf ecosystem [K081_1989_1990_NZ_1]
A detailed understanding of how cyanobacterial mats in the ponds of the McMurdo Ice Shelf are structured and how they derive their carbon, nitrogen and energy supply was investigated with a broad ...


95. The transformation of nutrients in glacial meltstream waters from origin to discharge [K081_2000_2001_NZ_3]
Two stream were examined for the rates and directions of transformation of nutrients, Green Creek and Canada Stream. Both of these streams drain into Lake Frxyell in the Taylor Valley. Each stream ...


96. Water nutrient chemistry of ponds on Bratina Island, Antarctica [K081_2004_2005_NZ_3]
Tweleve ponds on the McMurdo Ice Shelf were sampled to create and annual data set of water nutrient chemistry (DRP, NH4-N, NO3-N, TDN, TDP), pH, conductivity, temperature, phytoplankton chlorophyll ...


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