| 49 Titles Match Your Query |
Showing 1 through 49 of 49
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1.
DISCOVERY-FLEXICON: FLEXIbility and CONstraints in life histories [GB-NERC-BAS-PDC-00516]
FLEXICON is investigating the life-cycles of some of the world''s most durable and abundant organisms that are vital to the Earth''s systems. Marine organism in the Southern Ocean must endure one ...
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2.
The fate of primary production in Antarctic sea ice: the role of metazoan grazers. [ASAC_1328]
Crustaceans are an important component of the Antarctic marine ecosystem. Large numbers live in or close to the sea-ice cover, using it as a refuge from predation and a source of food. However, the ...
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3.
Latitudinal Gradient Project - Australian contributions [LGP]
This record relates to the Australian component of the Latitudinal Gradient Project. The LGP is largely a New Zealand, US and Italian venture, but a small contribution has been made by Australian ...
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4.
Stable isotope analysis of invertebrate epifauna collected around Casey station, East Antarctica, for the TRENZ program. [ASAC_2948_TRENZ_Stable_Isotopes]
PARENT DIF
A variety of epifaunal invertebrates were collected from hard substrates and soft sediment habitats at various sites in the Windmill Islands near Casey station in East Antarctica. Collected fauna ...
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5.
Geochemical and biological linkages in glacier ecosystems [ASAC_2750]
Metadata record for data from ASAC Project 2750
See the link below for public details on this project.
Glaciers are not frozen rivers, but another aquatic ecosystem in the cryosphere. Most life on ...
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6.
Physical and biogeochemical dynamics of the subantarctic zone [ASAC_2720]
CHILD DIFs
This metadata record is a 'Parent' metadata record for ASAC project 2720. See the link for the related 'Child' metadata records.
The overall objective is to characterise Southern Ocean marine ecosystems, ...
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7.
Sources, Pathways and Sinks of Organic Matter in Antarctic Terrestrial Ecosystems (MATE) [MATE.NL]
Terrestrial, limnetic and coastal ecosystems in Antarctica are connected by
transport (predominantly by melt water) of organic matter and minerals.
Temperature increase (either ...
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8.
Exopolysaccharides from Antarctic bacteria [ASAC_2348]
Exopolysaccharide (EPS) is complex sugar made by many microbes in the Antarctic marine environment. This project seeks to understand the ecological role of microbial EPS in the Southern Ocean, where ...
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9.
A Study of the Nitrogen-fixing Microbiota of Macquarie Island Plant Communities [ASAC_194]
The nitrogen fixing biota of Macquarie Island are dominated by cyanobacteria growing epiphytically or symbiotically with plants or lichens. Highest rates of acetylene reduction (N-fixation) were found ...
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10.
The role of the Southern Ocean in the carbon cycle [ASAC_133]
Metadata record for data from ASAC Project 133
See the link below for public details on this project.
Surface carbon dioxide (CO2) observations are integral to understanding the role of the Southern ...
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11.
Microbial mat development and production variation in relation to physio-chemical variation in 13 ponds that all originated from one greater pond near Bratina Island on the McMurdo Ice Shelf [K081_2005_2006_NZ_1]
Microbial mat development and production varies from pond to pond due to the physio-chemical variation amongst the ponds. To study this variation a series of 13 ponds were selected that had originated ...
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12.
Hydrologic Margins Research Project, 2004-2008, McMurdo Dry Valleys [B268_hydrol_margins_dvs_proj]
In this field research project, we investigated the soil hydrology, biogeochemistry, and microbial ecology along hydrologic gradients in soils adjacent to streams and lakes in Wright and Taylor Valleys. ...
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13.
Impacts of climate change on Antarctic vascular plants: warming and UV-B radiation [TAD001]
Our research examined the influence of ultraviolet-B radiation
(UV-B) and warming on the performance of Antarctic flowering plants
(i.e. Deschampsia antarctica, ...
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14.
Long-Term Monitoring of Signy Lake Chemistry by BAS 1963-2004 [GB-NERC-BAS-AEDC-00063]
The long term monitoring of water chemistry in Signy Island lakes is unique in polar limnology, in its duration (30+ years), detail, and range of sites. It details seasonal patterns of snow and ice ...
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15.
Factors Affecting the Distribution of Juvenile Salmon in the Gulf of Alaska 2001-2003 [salmon_juv_diet_LTOP_CGOA]
The purpose of this research is to focus National Marine Fisheries Service studies on the GLOBEC region, augment oceanographic measurements and determine what biological and physical factors influence ...
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16.
Microbial Diversities and Nutrient Profiling Around Maldonado Station, Antarctica: Distribution, Abundance And Physiology Of Fungi, Algae And Bacteria [MARPum-umt08]
In general, data on terrestrial and marine microbiology in many parts of Antarctica including the Antarctica Peninsula is not well-established. Unlike many other continents, the geographical location ...
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17.
Profiling hydrocarbons and nutrient distribution and mobility around Pedro Vicente Maldonado Station, Antarctica [MARumt08]
Chemical transport occurs lateral and vertically. This project aims to study mobility and transportation of chemicals in Antarctica. Lateral transport of essential elements in an ecosystem is the ...
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18.
Biogenic Particle Fluxes Measured Using Sediment Traps during the JGOFS North Atlantic Bloom Experiment (NABE) [JGOFS_NABE_SEDIMENT]
The Joint Global Ocean Flux Study (JGOFS) seeks to understand
the processes that control the transfer of carbon and other
biologically active elements in the ocean. In addition, ...
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19.
Determining the rates of nutrient uptake to create an approximate nutrient budget of microbial mats from Bratina Island ponds, McMurdo Ice Shelf [K081_2000_2001_NZ_5]
Mat cores from ponds on the McMurdo Ice Shelf were incubated in pond water which had been spiked by 50 ?g l-1 of nitrate or phosphate. Three ponds were used for water samples (Skua, Duet and P70) ...
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20.
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 ...
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21.
Natural spatial subsidies in continental Antarctic soil [K052_2001_2005_NZ_1]
CHILD DIFs
The soils of the McMurdo Dry Valleys are hypothesized to rely on external sources of nutrients (carbon, nitrogen, etc). The importance of these spatial subsidies on productivity and biological diversity ...
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22.
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 ...
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23.
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 ...
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24.
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 ...
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25.
Nutrient transfer from penguin colonies to the vegetation at Cape Hallett: A measurement of the transfer of organic nitrogen in the form of ammonia [K024_2004_2006_NZ_3]
The transfer of nutrients from marine to terrestrial ecosystems are though to be important for vegetation. The transfer rate of organic nitrogen in the form of ammonia from the penguin colonies to ...
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26.
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 ...
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27.
Meiobenthic biodiversity and fluxes within the Antarctic biogeochemical environment [AMD_BE_BIOGEOCHEM]
The purpose of this project is to determine the role of the
coastal zone and the deep sea ecosystems in the productivity
and energy fluxes in the Southern Ocean. In the Antarctic, ...
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28.
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 ...
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29.
In situ measurements of photosynthesis in the benthic microbial mats at high depths under the perennial ice cover of Lake Hoare, Taylor Valley [K081_2004_2005_NZ_2]
In situ measurements of photosynthesis in the benthic microbial mats, that grow under the perennial ice cover, of Lake Hoare were measured to determine if photosynthesis is positive at considerable ...
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30.
Cold adaptation and functionality of the Antarctic Coastal Benthic Zones [ASAC_1165]
Antarctic sediments and sea-ice are important regulators in global biogeochemical and atmospheric cycles. These ecosystems contain a diverse range of bacteria whose biogeochemical roles remains largely ...
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31.
Assessment of the importance of biological nitrogen fixation in the terrestrial ecosytem: Nitrogen fixation rates of Nostoc cyanobacterial mats in the Garwood Valley and at Cape Royds [K053_1986_1987_NZ_1]
Microbes with the nitrogenase enzyme on mosses and soils, particularly the cyanobacteria Nostoc, were examined to investigate the extent and magnitude of the nitrogen fixation process. Sample cores ...
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32.
Algal composition, physico-chemical features, photosynthetic carbon metabolism, nitrogen cycling and the structure and metabolic properties of algal mats in lakes and streams of southern Victoria Land [K081_1983_1986_NZ_1]
A three year study of lakes and stream of southern Victoria Land was conducted from 1983-1986. In the first season, the algal composition and physico-chemical characteristics of South Victoria Land ...
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33.
Biological, physical and chemical parameters in water and microbial mat samples from ponds in the Cape Hallett vicinity and cryoconite holes on the Tucker and Bornmann glaciers [K081_2005_2006_NZ_3]
A series of 10 ponds, located away from the main influences of the penguin colony at Cape Hallett, were investigated for variation in chemistry and microbial mat development. Cores of benthic microbial ...
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34.
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, ...
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35.
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 ...
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36.
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 ...
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37.
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 ...
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38.
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 ...
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39.
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 ...
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40.
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 ...
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41.
Samples collected for HPLC pigments, microscopy and flow cytometry for the SAZ-SENSE project [ASAC_2720_filtration]
PARENT DIF
Metadata record for data from ASAC Project 2720
See the link below for public details on this project.
The overall objective is to characterize Southern Ocean marine ecosystems, their influence on ...
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42.
Preliminary investigation of thermal biosystem of Mount Rittmann fumaroles (Northern Victoria Land, Antarctica) [Thermal_biosys_MountRittmann]
The biota and environment of fumarolic ground recently discovered near Mount
Rittmann are described. Three patches (about 1 m2 each) of the moss Pohlia
nutans were found in a minor caldera rim. Cyanophytes, ...
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43.
Antarctic Fish and Trophic Webs [ANTARCTIC_JCADM_DNA_FISH]
The objectives of this long-term project are twofold. The first is to collect
baseline data on pollutant levels in notothenioids and their prey and predator
species from the Potter Cove area. The ...
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44.
Studies on Antarctic Pinnepeds [ANTARCTIC_JCADM_DNA_PINNEPEDS]
Research is being undertaken at the Jubany Scientific Station on the
biochemical analysis of the southern elephant seal milk and serum proteins
during various stages of lactation, post-weaning, and ...
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45.
Eastern Pacific Pelagic Fisheries from LDEO/IRI Climate Data Library [iri_eppf]
This data sets consists of data collected from Perue and Chile
fisheries including climate variables to assess El Nino Southern
Oscillation (ENSO) impacts. The data consist of the following:
Weekly ...
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46.
HYDROGRAPHIC DATA OF THE LOC-IUEM/UBO [UBOC01]
ENGLISH
Data collected by the Chemical Oceanography Laboratory (LOC/CHIMAR, France) in
the frame of two main programs: 1) nitrogen fluxes in the food web, fluid
transports for coastal systems and ...
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47.
Changes of major ion concentrations in melting snow and terrestrial waters from northern Victoria Land, Antarctica. [Ion_concentr_Victoria_Land]
Concentrations of major ions (Cl-, NO3-, SO42-, Na+, K+,Mg2+, Ca2+) where
measure in melting snow and water samples from stream and lakes in ice-free
areas throughout northern Victoria Land. Most ...
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48.
Antarctic nonmarine aquatic ecosystems as global change sensors [CNDA-ES_LIMNOPOLAR_META_BAS017]
In English:
This project is aimed to achieve a higher knowledge of the limnetic systems in
Polar latitudes. Particularly, it promotes the accurate description the Byers
Peninsula (Livingston Island), ...
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49.
Role of dynamics and biological processes on the CO2 balance in the southern Atlantic and Austral Oceans. [JCADM_CDA_DNA_ARGAU_OCEAN]
Title: Role of dynamics and biological processes on the CO2 balance in
the southern Atlantic and Austral Oceans: A biological approximation
to the different trophic regimes and phytoplankton communities. ...
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Showing 1 through 49 of 49
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