[ { "dataset_uid": "601343", "doi": "10.1594/IEDA/321392", "landing_page": "https://www.usap-dc.org/view/dataset/601343", "title": "Processed CurrentMeter Data from the Adare Basin near Antarctica acquired during the Nathaniel B. Palmer expedition NBP1101 ", "creator": "Huber, Bruce; Gordon, Arnold", "abstract": "This data set was acquired with a CurrentMeter during Nathaniel B. Palmer expedition NBP1101 conducted in 2011 (Chief Scientist: Dr. Josh Kohut; Investigator(s): Dr. Bruce Huber and Dr. Arnold Gordon). These data files are of Matlab Binary format and include Temperature, Current Measurement, and Salinity data and were processed after data collection. Data were acquired as part of the project(s): Ross Sea Expedition, and funding was provided by NSF grant(s): ANT08-39039.", "release_date": null, "keywords": "Antarctica; Mooring; NBP1101; Ross Sea; Salinity; Southern Ocean; Temperature", "locations": "Ross Sea; Southern Ocean; Antarctica", "persons": "Huber, Bruce; Gordon, Arnold", "projects": [ { "proj_uid": "p0000843", "title": "Collaborate Research:Modified Circumpolar Deep Water Intrusions as an Iron Source to the Summer Ross Sea Ecosystem", "landing_page": "https://www.usap-dc.org/view/project/p0000843" }, { "proj_uid": "p0000838", "title": "Cape Adare Long-term Mooring (CALM)", "landing_page": "https://www.usap-dc.org/view/project/p0000838" } ], "awards": "0538148 Huber, Bruce; 0839039 Kustka, Adam", "north": "-71.0", "south": "-72.0", "east": "173.0", "west": "172.0", "science_programs": null, "nsf_funding_programs": "Antarctic Ocean and Atmospheric Sciences; Antarctic Ocean and Atmospheric Sciences", "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Thu, 25 Jun 2020 00:00:00 -0000", "date_modified": "Thu, 25 Jun 2020 00:00:00 -0000" }, { "dataset_uid": "601313", "doi": "10.15784/601313", "landing_page": "https://www.usap-dc.org/view/dataset/601313", "title": "Raw satellite images from NB Palmer and LM Gould Antarctic cruises", "creator": "USAP Operator", "abstract": "Raw Satellite Images acquired during several Nathaniel B. Palmer and LM Gould expeditions. These are mostly downloaded during the cruises, often directly using the ships satellite receiver (TerraSat system). The data include visible and infrared images. They are organized by expedition.", "release_date": null, "keywords": "Antarctica; LMG0301; LMG0302; LMG0304; LMG0309; LMG0411; LMG0412; LMG0413A; LMG0414; LMG0502; LMG0511; LMG0512; LMG0514; LMG0605; LMG0610; LMG0611; LMG0611B; LMG0612; LMG0717; LMG0804; LMG0808; LMG0809; LMG0901; LMG0905; LMG0906A; LMG0909; LMG0910; LMG1001; NBP0107; NBP0301; NBP0302; NBP0304A; NBP0305; NBP0305A; NBP0401; NBP0402; NBP0404; NBP0409; NBP0501; NBP0506; NBP0508; NBP0601; NBP0602A; NBP0603; NBP0608; NBP0701; NBP0702; NBP0703; NBP0709; NBP0710; NBP0711; NBP0801; NBP0802; NBP0803; NBP0804; NBP0805; NBP0806; NBP0808; NBP0901; NBP0908; NBP1101; NBP1102; Satellite; Satellite Imagery", "locations": "Antarctica", "persons": null, "projects": null, "awards": null, "north": "-60.0", "south": "-90.0", "east": "180.0", "west": "-180.0", "science_programs": null, "nsf_funding_programs": null, "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Mon, 04 May 2020 00:00:00 -0000", "date_modified": "Mon, 04 May 2020 00:00:00 -0000" }, { "dataset_uid": "600103", "doi": "10.15784/600103", "landing_page": "https://www.usap-dc.org/view/dataset/600103", "title": "Alternative Nutritional Strategies in Antarctic Protists", "creator": "Gast, Rebecca", "abstract": "This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).\n\nMost organisms meet their carbon and energy needs using photosynthesis (phototrophy) or ingestion/assimilation of organic substances (heterotrophy). However, a nutritional strategy that combines phototrophy and heterotrophy - mixotrophy - is geographically and taxonomically widespread in aquatic systems. While the presence of mixotrophs in the Southern Ocean is known only recently, preliminary evidence indicates a significant role in Southern Ocean food webs. Recent work on Southern Ocean dinoflagellate, Kleptodinium, suggests that it sequesters functional chloroplasts of the bloom-forming haptophyte, Phaeocystis antarctica. This dinoflagellate is abundant in the Ross Sea, has been reported elsewhere in the Southern Ocean, and may have a circumpolar distribution. By combining nutritional modes. mixotrophy may offer competitive advantages over pure autotrophs and heterotrophs.\n\nThe goals of this project are to understand the importance of alternative nutritional strategies for Antarctic species that combine phototrophic and phagotrophic processes in the same organism. The research will combine field investigations of plankton and ice communities in the Southern Ocean with laboratory experiments on Kleptodinium and recently identified mixotrophs from our Antarctic culture collections. The research will address: 1) the relative contributions of phototrophy and phagotrophy in Antarctic mixotrophs; 2) the nature of the relationship between Kleptodinium and its kleptoplastids; 3) the distributions and abundances of mixotrophs and Kleptodinium in the Southern Ocean during austral spring/summer; and 4) the impacts of mixotrophs and Kleptodinium on prey populations, the factors influencing these behaviors and the physiological conditions of these groups in their natural environment. \n\nThe project will contribute to the maintenance of a culture collection of heterotrophic, phototrophic and mixotrophic Antarctic protists that are available to the scientific community, and it will train graduate and undergraduate students at Temple University. Research findings and activities will be summarized for non-scientific audiences through the PIs' websites and through other public forums, and will involve middle school teachers via collaboration with COSEE-New England.\n", "release_date": null, "keywords": "Biota; Microbiology; NBP0305; NBP0405; NBP0508; NBP1101; Oceans; Southern Ocean", "locations": "Southern Ocean", "persons": "Gast, Rebecca", "projects": [ { "proj_uid": "p0000490", "title": "Collaborative Research: Alternative Nutritional Strategies in Antarctic Protists", "landing_page": "https://www.usap-dc.org/view/project/p0000490" } ], "awards": "0838955 Gast, Rebecca", "north": "-76.159164", "south": "-76.585556", "east": "71.60472", "west": "71.504166", "science_programs": null, "nsf_funding_programs": null, "replaces": null, "replaced_by": null, "language_id": "English", "version": "1", "date_created": "Tue, 01 Jan 2013 00:00:00 -0000", "date_modified": "Tue, 01 Jan 2013 00:00:00 -0000" } ]