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1. Data for flow cytometry, FlowCam, and microscopy comparison experiment [AAS_4026_Variance_Experiment]   PARENT DIF
This data set was collected from two minicosm experiments conducted at Davis Station, Antarctica. 1. Variance experiment - 2013/14 summer season 2. Ocean acidification experiment - 2014/15 summer ...


2. Penguin Foraging Reveals Phytoplankton Spatial Structure in the Ross Sea [NSF-ANT11-42174_1]
The Ross Sea is believed to contributes a huge portion (~1/3) of the primary productivity of the Southern Ocean and is home to a similar large portion of the top predators (e.g. 38% of Adelie, 28% ...


3. The Cost of A New Fur Coat: Interactions between Molt and Reproduction in Weddell Seals (USAP/DC) [USAP-1246463_1]
Marine mammals that inhabit high latitude environments have evolved unique mechanisms to execute a suite of energetically-costly life history events (CLHEs) within a relatively short timeframe when ...


4. Toxicity of physically and chemically dispersed fuels to the common Antarctic amphipod, Paramoera walkeri [AAS_4142_Paramoera_walkeri_dispersant_fuel_toxicity]
This metadata record contains the results from bioassays conducted to show the response of the common Antarctic amphipod, Paramoera walkeri to contamination from combinations of Special Antarctic ...


5. A New Reconstruction of the Last West Antarctic Ice Sheet Deglaciation in the Ross Sea [NSF-ANT10-43485]
This award supports a project to develop a better understanding of the response of the WAIS to climate change. The timing of the last deglaciation of the western Ross Sea will be improved using in ...


6. ASPIRE: Amundsen Sea Polynya International Research Expedition [NSF-ANT09-44727]
ASPIRE is an NSF-funded project that will examine the ecology of the Amundsen Sea during the Austral summer of 2010. ASPIRE includes an international team of trace metal and carbon chemists, phytoplankton ...


7. Abandoned Elephant Seal Colonies in Antarctica: Integration of Genetic, Isotopic, and Geologic Approaches toward Understanding Holocene Environmental Change [NSF-ANT04-39906]
During previous NSF-sponsored research, the PI's discovered that southern elephant seal colonies once existed along the Victoria Land coast (VLC) of Antarctica, a region where they are no longer observed. ...


8. Acoustic Assessment of Southern Ocean Salps and Their Ecosystem Impact [NSF-ANT09-44042]
The importance of gelatinous zooplankton in marine systems worldwide is increasing. In Southern Ocean, increasing salp densities could have a detrimental effect on higher predators, including penguins, ...


9. Adaptive Responses of Phaeocystis Populations in Antarctic Ecosystems [NSF-ANT11-42018]
Global climate change is having significant effects on areas of the Southern Ocean, and a better understanding of this ecosystem will permit predictions about the large-scale implications of these ...


10. Aging in Weddell Seals: Proximate Mechanisms of Age-Related Changes in Adaptations to Breath-Hold Hunting in an Extreme Environment [NSF-ANT06-49609]
The primary objectives of this research are to investigate the proximate effects of aging on diving capability in the Weddell Seal and to describe mechanisms by which aging may influence foraging ...


11. Alternative Nutritional Strategies in Antarctic Protists [NSF-ANT08-38955]
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Most organisms meet their carbon and energy needs using photosynthesis (phototrophy) or ingestion/assimilation ...


12. Ammonia Oxidation Versus Heterotrophy in Crenarchaeota Populations from Marine Environments West of the Antarctic Peninsula [NSF-ANT08-38996]
Ammonia oxidation is the first step in the conversion of regenerated nitrogen to dinitrogen gas, a 3-step pathway mediated by 3 distinct guilds of bacteria and archaea. Ammonia oxidation and the overall ...


13. Antarctic Auroral Imaging [NSF-ANT06-36899]
Auroral protons are not energized by electric fields directly above the auroral atmosphere and therefore they are a much better diagnostic of processes deep in the magnetosphere. It has been shown ...


14. Antarctic Pack Ice Seals Project (APIS) Acoustic Data for the Eastern Ross Sea 2000 [APIS_Acoustic_data]
APIS (Antarctic Pack Ice Seals) was an international program formulated by the SCAR Group on Specialists on Seals to consider the functional significance of upper trophic level predators ...


15. Antarctica's Geological History Reflected in Sedimentary Radiogenic Isotopes [NSF-ANT05-38580]
This project studies sediment from the ocean floor to understand Antarctica's geologic history. Glacially eroded from the Antarctic continent, these sediments may offer insight into the 99% Antarctica ...


16. Application for an Early-concept Grant for Exploratory Reasearch (EAGER) to develop a Pathway/Genome Database (PGDB) for the Southern Ocean Haptophyte Phaeocystis Antarctica. [NSF-ANT10-63592]
Phaeocystis antarctica is capable of forming blooms that are denser and more extensive than any other member of the Southern Ocean phytoplankton community. The factors that enable P Antarctica to ...


17. Application of a New Method for Isotopic Analysis of Diatom Microfossil-bound Nitrogen [NSF-ANT04-53680]
The Southern Ocean may play a central role in causing ice ages and general global climate change. This work will reveal key characteristics of the glacial ocean, and may explain the cause of glacial/interglacial ...


18. Atmosphere-Ocean-Ice Interaction in a Coastal Polynya [NSF-ANT07-39464]
Antarctic polynyas are the ice free zones often persisting in continental sea ice. Characterization of the lower atmosphere properties, air-sea surface heat fluxes and corresponding ocean depth profiles ...


19. Atmospheric Boundary Layer Measurements on the Weddell Sea Drifting Station [NSF-ANT90-24544]
Location: Ice camp on perennial sea ice in the southwestern corner of the Weddell Sea, Antarctic The first direct radiative and turbulent surface flux measurements ever made over floating Antarctic ...


20. BIoGeochemical cycles in the SOUTHern Ocean: Role within the Earth System [BIGSOUTH]
The BIGSOUTH project (Biogeochemical cycles in the Southern Ocean: role within the Earth system) aims at achieving a detailed understanding of the processes controlling functioning and strength of ...


21. Biodiversity, Buoyancy and Morphological Studies of Non-Antarctic Notothenioid Fishes [NSF-ANT04-36190]
Patterns of biodiversity, as revealed by basic research in organismal biology, may be derived from ecological and evolutionary processes expressed in unique settings, such as Antarctica. The polar ...


22. Bromide in Snow in the Sea Ice Zone [NSF-ANT10-43145]
A range of chemical and microphysical pathways in polar latitudes, including spring time (tropospheric) ozone depletion, oxidative pathways for mercury, and cloud condensation nuclei (CCN) production ...


23. CAREER: Deciphering Antarctic Climate Variability during the Temperate/Polar Transition and Improving Climate Change Literacy in Louisiana through a Companion Outreach Program [NSF-ANT10-48343]
Intellectual Merit: The PI proposes a high-resolution paleoenvironmental study of pollen, spore, fresh-water algae, and dinoflagellate cyst assemblages to investigate the palynological record of sudden ...


24. Central Scotia Seafloor and the Drake Passage Deep Ocean Current Gateway [NSF-ANT06-36850]
This project studies the opening of the Drake Passage between South America and Antarctica through a combined marine geophysical survey and geochemical study of dredged ocean floor basalts. Dating ...


25. Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems. [NSF-ANT07-32983]
Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems. A profound transformation in ecosystem structure and function ...


26. Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine and Quaternary Geosciences [NSF-ANT07-32625]
This award supports a research cruise to perform geologic studies in the area under and surrounding the former Larsen B ice shelf, on the Antarctic Peninsula. The ice shelf's disintegration in 2002 ...


27. Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans [NSF-ANT07-32651]
Scambos/0732921,Pettit/0732738,Gordon/0732651,Truffer/0732602,Mosley-Thompson/0732655. Like no other region on Earth, the northern Antarctic Peninsula represents a spectacular natural laboratory ...


28. Collaborative Research: Constraining the Petrogenesis and Mantle Source of Adare Basin Seamount Lavas [NSF-ANT05-38266]
This award supports the study of lava samples from seamounts in the Cape Adare region of the western Ross Sea. Volcanism in this area is poorly understood, and the geochemistry of these lavas may ...


29. Collaborative Research: Differential Expression of Oxygen-binding Proteins in Antarctic Fishes Affects Nitric Oxide-mediated Pathways of Angiogenesis and Mitochondrial Biogenesis [NSF-ANT04-37887]
The polar ocean presently surrounding Antarctica is the coldest, most thermally stable marine environment on earth. Because oxygen solubility in seawater is inversely proportional to temperature, ...


30. Collaborative Research: East Antarctic outlet glacier contributions to the Ross Sea from chronology of detrital grains [NSF-ANT10-43619]
Intellectual Merit: The PIs proposed a provenance study of glacial deposits in the Ross Embayment that will provide a broad scale geochronologic survey of detrital minerals in till to help characterize ...


31. Collaborative Research: Hunting in Darkness: Behavioral and Energetic Strategies of Weddell Seals in Winter [NSF-ANT07-39390]
Intellectual merit: Weddell seals (Leptonychotes weddellii) locate and capture sparsely distributed and mobile prey under shore-fast ice throughout the year, including the austral winter when ambient ...


32. Collaborative Research: Impact of Mesoscale Processes on Iron Supply and Phytoplankton Dynamics in the Ross Sea [NSF-ANT09-44254]
The Ross Sea continental shelf is one of the most productive areas in the Southern Ocean, and may comprise a significant, but unaccounted for, oceanic CO2 sink, largely driven by phytoplankton production. ...


33. Collaborative Research: Integrative Study of Marine Ice Sheet Stability and Subglacial Life Habitats - Robotic Access to Grounding-zones for Exploration and Science (RAGES) (Powell) [NSF-ANT08-39107]
The RAGES project (Robotic Access to Grounding zones for Exploration and Science) is one of three research components of the WISSARD (Whillans Ice Stream Subglacial Access Research Drilling) integrative ...


34. Collaborative Research: Integrative Study of Marine Ice Sheet Stability and Subglacial Life Habitats in W Antarctica - Lake and Ice Stream Subglacial Access Research Drilling (LISSARD) [NSF-ANT08-39059]
The LISSARD project (Lake and Ice Stream Subglacial Access Research Drilling) is one of three research components of the WISSARD integrative initiative (Whillans Ice Stream Subglacial Access Research ...


35. Collaborative Research: Modeling and synthesis study of a natural iron fertilization site in the Southern Drake Passage [NSF-ANT09-48338]
The ocean plays a critical role in sequestering CO2 by exporting fixed carbon to the deep ocean through the biological pump. There is a pressing need to understand the systematics of carbon export ...


36. Collaborative Research: Paleohistory of the Larsen Ice Shelf System: Phase II - NSF-ANT03-38220 [NSF-ANT03-38220]
The Larsen Ice Shelf is the third largest ice shelf in Antarctica and has continued a pattern of catastrophic decay since the mid 1990's. The proposed marine geologic work at the Larsen Ice Shelf ...


37. Collaborative Research: Plankton Community Structure and Iron Distribution in the Southern Drake Passage and Scotia Sea [NSF-ANT04-44040]
The Shackleton Fracture Zone (SFZ) in Drake Passage of the Southern Ocean defines a boundary between low and high phytoplankton waters. Low chlorophyll water flowing through the southern Drake Passage ...


38. Collaborative Research: Plankton Community Structure and Iron Distribution on in the Southern Drake Passage and Scotia Sea [NSF-ANT04-43403]
The Shackleton Fracture Zone (SFZ) in Drake Passage of the Southern Ocean defines a boundary between low and high phytoplankton waters. Low chlorophyll water flowing through the southern Drake Passage ...


39. Collaborative Research: Salpa Thompsoni in the Southern Ocean: Bioenergetics, Population Dynamics and Biogeochemical Impact [NSF-ANT03-38290]
Salps are planktonic grazers that have a life history, feeding biology and population dynamic strikingly different from krill, copepods or other crustacean zooplankton. Salps can occur in very dense ...


40. Collaborative Research: TRacing the fate of Algal Carbon Export in the Ross Sea (TRACERS) [NSF-ANT11-42117]
Sinking particles are a major element of the biological pump and they are commonly assigned to two fates: mineralization in the water column and accumulation at the seafloor. However, there is another ...


41. Collaborative Research: TRacing the fate of Algal Carbon Export in the Ross Sea (TRACERS) - NSF-ANT11-42065 [NSF-ANT11-42065]
Sinking particles are a major element of the biological pump and they are commonly assigned to two fates: mineralization in the water column and accumulation at the seafloor. However, there is another ...


42. Collaborative Research: Weddell seals as autonomous sensors of the winter oceanography of the Ross Sea [NSF-ANT08-38892]
Marine mammals of the Southern Ocean have evolved diverse life history patterns and foraging strategies to accommodate extreme fluctuations in the physical and biological environment. In light of ...


43. Collaborative Research; IPY: Ocean-Ice Interaction in the Amundsen Sea sector of West Antarctica [NSF-ANT07-32804]
The Office of Polar Programs, Antarctic Integrated and System Science Program has made this award to support an interdisciplinary study of the effects of the ocean on the stability of glacial ice ...


44. Controls on Climate-Active Gases by Amundsen Sea Ice Biota [NSF-ANT08-36112]
Convincing evidence now confirms that polar regions are changing rapidly in response to human activities. Changes in sea ice extent and thickness will have profound implications for productivity, ...


45. Controls on Climate-Active Gases by Amundsen Sea Ice Biota - NSF-ANT08-36061 [NSF-ANT08-36061]
Convincing evidence now confirms that polar regions are changing rapidly in response to human activities. Changes in sea ice extent and thickness will have profound implications for productivity, ...


46. Controls on climate-active gases by Amundsen Sea ice biota [NSF-ANT08-36144]
Convincing evidence now confirms that polar regions are changing rapidly in response to human activities. Changes in sea ice extent and thickness will have profound implications for productivity, ...


47. Distribution And Ecology Of Ammonia Oxidizing Bacteria In The Palmer LTE R Study Area [NSF-ANT02-34249]
This project will investigate the distribution, phylogenetic affinities and ecological aspects of ammonium-oxidizing bacteria in the Palmer Long-Term Ecological Research study area. Ammonia oxidation ...


48. Do Crustacean Zooplankton Play a Pivotal Role in Structuring Heterotrophic Plankton Communities in the Ross Sea? [NSF-ANT05-42111]
Recent studies of marine ecosystems show conflicting evidence for trophic cascades, and in particular the relative strength of the crustacean zooplankton-phytoplankton link. The Ross Sea is a natural ...


49. Does the Strength of the Carbonate Pump Change with Ocean Stratification and Acidification and How? [NSF-ANT10-40957]
This project will improve the ability to predict the response of the carbonate pump to ocean acidification and stratification through enhanced understanding of the controlling factors of the export ...


50. Effect of Ocean Acidification on Early Life History Stages of the Antarctic Sea Urchins Sterechinus Neumayeri [NSF-ANT09-44201]
This research examines the effects of ocean acidification on embryos and larvae of a contemporary calcifier in the coastal waters of Antarctica, the sea urchin Sterechinus neumayeri. The effect of ...


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