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Title Sum-
Institution Dataset ID
     data   graph     files  public Trichodesmium sample provenance from samples collected in North Atlantic surface waters,
station BATS, and station ALOHA between 2000 and 2018
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String A 200mm plankton net was deployed to ~20m depth, then recovered to just below
surface, repeating five times. Trichodesmium colonies were hand-picked into
0.2mm filtered surface seawater, rinsed twice in 0.2mm filtered surface
seawater, and decanted onto a 0.2-4mm Supor filter.
attribute NC_GLOBAL awards_0_award_nid String 646121
attribute NC_GLOBAL awards_0_award_number String GBMF3934
attribute NC_GLOBAL awards_0_funder_name String Gordon and Betty Moore Foundation
attribute NC_GLOBAL awards_0_funding_acronym String GBMF
attribute NC_GLOBAL awards_0_funding_source_nid String 361
attribute NC_GLOBAL awards_1_award_nid String 646122
attribute NC_GLOBAL awards_1_award_number String GBMF3782
attribute NC_GLOBAL awards_1_data_url String https://www.moore.org/grant-detail?grantId=GBMF3782 (external link)
attribute NC_GLOBAL awards_1_funder_name String Gordon and Betty Moore Foundation: Marine Microbiology Initiative
attribute NC_GLOBAL awards_1_funding_acronym String MMI
attribute NC_GLOBAL awards_1_funding_source_nid String 385
attribute NC_GLOBAL awards_2_award_nid String 724457
attribute NC_GLOBAL awards_2_award_number String OCE-1657766
attribute NC_GLOBAL awards_2_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1657766 (external link)
attribute NC_GLOBAL awards_2_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_2_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_2_funding_source_nid String 355
attribute NC_GLOBAL awards_2_program_manager String David L. Garrison
attribute NC_GLOBAL awards_2_program_manager_nid String 50534
attribute NC_GLOBAL awards_3_award_nid String 786678
attribute NC_GLOBAL awards_3_award_number String OCE-1850719
attribute NC_GLOBAL awards_3_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1850719 (external link)
attribute NC_GLOBAL awards_3_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_3_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_3_funding_source_nid String 355
attribute NC_GLOBAL awards_3_program_manager String Daniel Thornhill
attribute NC_GLOBAL awards_3_program_manager_nid String 722161
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Trichodesmium sample provenance
PI: Mak A. Saito
Data Version 1: 2020-01-10
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2020-01-10T20:04:13Z
attribute NC_GLOBAL date_modified String 2020-04-02T18:12:49Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.787093.1
attribute NC_GLOBAL Easternmost_Easting double -21.59
attribute NC_GLOBAL geospatial_lat_max double 31.4
attribute NC_GLOBAL geospatial_lat_min double 0.17976
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -21.59
attribute NC_GLOBAL geospatial_lon_min double -158.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/787093 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, cruise, Cruise_station_num, data, dataset, date, dmo, erddap, filter, Filter_size, latitude, longitude, management, name, net, Net_size, num, oceanography, office, preliminary, replication, sampled, size, station, time, Time_sampled, time_zone, zone
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/787093/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/787093 (external link)
attribute NC_GLOBAL Northernmost_Northing double 31.4
attribute NC_GLOBAL param_mapping String {'787093': {'Latitude': 'master - latitude', 'Longitude': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/787093/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_0_affiliation_acronym String WHOI
attribute NC_GLOBAL people_0_person_name String Mak A. Saito
attribute NC_GLOBAL people_0_person_nid String 50985
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI
attribute NC_GLOBAL people_1_person_name String Noelle Held
attribute NC_GLOBAL people_1_person_nid String 787371
attribute NC_GLOBAL people_1_role String Student
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Amber York
attribute NC_GLOBAL people_2_person_nid String 643627
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String TriCoLim,MM Proteins and Organics Tech,MM Saito,Cyanobacteria Warming Responses
attribute NC_GLOBAL projects_0_acronym String TriCoLim
attribute NC_GLOBAL projects_0_description String NSF abstract:
Marine cyanobacteria are able to use or "fix" atmospheric nitrogen gas, and so supply much of the essential nutrient nitrogen that supports open ocean food chains. Oceanographers have usually thought that the growth of these nitrogen-fixing cyanobacteria is limited at any particular time and place by the supply of either iron, or of phosphorus. Preliminary experiments have shown, though, that these nitrogen fixers instead grow best when both iron and phosphorus are scarce at the same time. In this project, the researchers will use cellular indicators that are specific for iron and phosphorus limitation to determine how important this type of "balanced limitation" of nitrogen-fixing cyanobacteria is in controlling the productivity of ocean food chains in the tropical Atlantic Ocean. Two graduate students will be trained at the University of Southern California (USC) and Woods Hole Oceanographic Institution, as well as a postdoctoral researcher at USC. Educational outreach efforts will take place at a Los Angeles inner city high school with a student body that is over 98% Hispanic and African-American, and with underrepresented undergraduates in the USC Global Environmental Microbiology course. In addition, two Research Experiences for Undergraduates students will be supervised for summer research projects to help them learn about science career options.
The researchers will investigate the biological and biogeochemical consequences of this unique balanced iron/phosphorus-limited phenotype, using both laboratory and fieldwork approaches. During the first year of this project, the nitrogen-fixing cyanobacteria will be cultured under iron and/or phosphorus limitation, followed by application of proteomics and transcriptomics to identify genes that are potential diagnostic biomarkers for iron/phosphorus balanced limitation. Preliminary work has already identified one promising candidate biomarker in one cyanobacterium, an EzrA protein domain that appears to be associated with the cell size decreases seen specifically under balanced limitation, and the researchers have identified numerous other potential candidates for similar biomarkers. During the second year, these new co-limitation biomarkers and others previously validated for iron limitation (IsiB) and phosphorus limitation (SphX) will be used to investigate balanced limitation during a research cruise transecting from relatively high-iron, low-phosphorus North Atlantic waters, to the relatively high-phosphorus, low-iron South Atlantic. This fieldwork component will survey nitrogen fixing cyanobacteria populations across this natural iron/phosphorus gradient for genetic, proteomic, and physiological indicators of balanced limitation, as well as testing their responses to iron and phosphorus manipulations in shipboard incubation experiments. The third year will be devoted to sample analysis, and publications exploring the responses of oceanic nitrogen fixers to simultaneous limitation by both iron and phosphorus.
attribute NC_GLOBAL projects_0_end_date String 2020-02
attribute NC_GLOBAL projects_0_geolocation String Tropical Atlantic
attribute NC_GLOBAL projects_0_name String Collaborative Research: Iron and phosphorus balanced limitation of nitrogen fixation in the oligotrophic ocean
attribute NC_GLOBAL projects_0_project_nid String 724451
attribute NC_GLOBAL projects_0_start_date String 2017-03
attribute NC_GLOBAL projects_1_acronym String MM Proteins and Organics Tech
attribute NC_GLOBAL projects_1_description String In support of acquiring a high resolution mass spectrometer that incorporates the latest technologies for analyzing proteins and other organic materials.
attribute NC_GLOBAL projects_1_end_date String 2014-06
attribute NC_GLOBAL projects_1_name String New technology for high resolution analysis of proteins and other organic materials produced by marine microorganisms
attribute NC_GLOBAL projects_1_project_nid String 786670
attribute NC_GLOBAL projects_1_project_website String https://www.moore.org/grant-detail?grantId=GBMF3934 (external link)
attribute NC_GLOBAL projects_1_start_date String 2013-06
attribute NC_GLOBAL projects_2_acronym String MM Saito
attribute NC_GLOBAL projects_2_description String In support of obtaining deeper knowledge of major biogeochemically relevant proteins to inform a mechanistic understanding of global marine biogeochemical cycles.
attribute NC_GLOBAL projects_2_end_date String 2019-12
attribute NC_GLOBAL projects_2_name String Marine Microbial Investigator Award: Investigator Mak Saito
attribute NC_GLOBAL projects_2_project_nid String 786672
attribute NC_GLOBAL projects_2_start_date String 2013-05
attribute NC_GLOBAL projects_3_acronym String Cyanobacteria Warming Responses
attribute NC_GLOBAL projects_3_description String NSF abstract:
The oceans absorb much of the heat generated by human activities, and this warming of the surface ocean has consequences for important groups of marine organisms. Marine cyanobacteria are one such key group of organisms, since they supply much of the essential carbon and nitrogen that supports nearly all the rest of the marine food web. Currently, the growth of cyanobacteria is mostly constrained by scarce supplies of the micronutrient element iron, but they are also very sensitive to the ongoing increases in seawater temperature. Preliminary results suggest that warming could partly mitigate the negative effects of iron limitation on marine cyanobacteria. This project examines in depth how these interactions between warming and iron limitation will affect the future ocean carbon and nitrogen cycles, using laboratory culture experiments showing how cyanobacteria respond to simultaneously changing temperature and iron supplies. Both short-term response studies and long-term evolutionary experiments testing for adaptation use a comprehensive set of molecular biology tools targeting genes to proteins. The final goal is to apply the results of these experiments to improve quantitative models predicting how the ocean's carbon and nitrogen cycles, biological productivity, and living resources will respond to a warming future climate. Two graduate students, a postdoc and 3-4 underrepresented undergraduate researchers are supported, and the investigators also mentor summer science interns from largely Hispanic local high schools.
The physiology, biochemistry and biogeography of nitrogen-fixing cyanobacteria and unicellular picocyanobacteria are strongly influenced by temperature, subjecting them to intense selective pressure as the modern ocean steadily warms up. These groups have likewise been rigorously selected under chronic iron (Fe) scarcity, and the availability of this crucial micronutrient is also changing with a shifting climate. This project examines short-term acclimation and long-term evolutionary responses of Fe-stressed marine cyanobacteria to a warmer environment. Preliminary data show that Iron Use Efficiencies (IUE, mols N fixed.hr-1 mol cellular Fe-1) of Fe-limited Trichodesmium increase 4 to 5-fold with a 5oC temperature increase, allowing the cells to much more efficiently leverage scarce available Fe supplies to grow and fix nitrogen. This means that warming can to a large degree mitigate the negative effects of Fe limitation on Trichodesmium, resulting in a modelled 22% increase in global nitrogen fixation by 2100 in a warmer climate. This project aims to uncover the cellular biochemical mechanisms involved in this Fe-limitation/thermal IUE effect in a four-year experimental evolution study of the diazotrophs Trichodesmium and Crocosphaera and the picocyanobacteria Synechococcus and Prochlorococcus, under a multi-variate selection matrix of temperature and Fe availability. The objectives are to 1) Assess the long-term adaptive responses of fitness, IUE and physiology to Fe limitation and warming interactions in these four major cyanobacterial groups; 2) Determine the molecular and biochemical mechanisms behind the surprising Fe/warming interactive effect on IUE using genomics, transcriptomics and quantitative proteomics coupled with 'metalloproteomics' determinations of Fe content in critical proteins; 3) Compare and contrast acclimation and adaptation responses to Fe limitation and warming in key cyanobacteria taxa, and 4) Integrate results using a published biogeochemical modeling approach to assess global consequences for marine productivity and nitrogen fixation. This project offers a mechanistic and predictive understanding of adaptation to Fe and warming co-stressors in a rapidly changing future ocean environment for some of the most important photoautotrophic functional groups in the ocean.
This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
attribute NC_GLOBAL projects_3_end_date String 2023-03
attribute NC_GLOBAL projects_3_name String Collaborative Research: Evolutionary, biochemical and biogeochemical responses of marine cyanobacteria to warming and iron limitation interactions
attribute NC_GLOBAL projects_3_project_nid String 786679
attribute NC_GLOBAL projects_3_start_date String 2019-04
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 0.17976
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Trichodesmium sample provenance collected in North Atlantic surface waters, at station BATS (Bermuda Atlantic Time-series Study), and station ALOHA (A Long-Term Oligotrophic Habitat Assessment) between 2000 and 2018.
attribute NC_GLOBAL title String Trichodesmium sample provenance from samples collected in North Atlantic surface waters, station BATS, and station ALOHA between 2000 and 2018
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -158.0
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Name   String  
attribute Name bcodmo_name String sample
attribute Name description String Sample name
attribute Name long_name String Name
attribute Name nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute Name units String unitless
variable Replication   String  
attribute Replication bcodmo_name String sample_descrip
attribute Replication description String Replication (singlicate|duplicate|triplicate)
attribute Replication long_name String Replication
attribute Replication units String unitless
variable Cruise   String  
attribute Cruise bcodmo_name String cruise_id
attribute Cruise description String Cruise identifier (or station BATS or HOT)
attribute Cruise long_name String Cruise
attribute Cruise units String unitless
variable Cruise_station_num   byte  
attribute Cruise_station_num _FillValue byte 127
attribute Cruise_station_num actual_range byte 1, 19
attribute Cruise_station_num bcodmo_name String station
attribute Cruise_station_num description String Station number
attribute Cruise_station_num long_name String Cruise Station Num
attribute Cruise_station_num units String unitless
variable Time_sampled   String  
attribute Time_sampled bcodmo_name String sample_descrip
attribute Time_sampled description String Description of time sampled
attribute Time_sampled long_name String Time Sampled
attribute Time_sampled units String unitless
variable Date_sampled   String  
attribute Date_sampled bcodmo_name String date
attribute Date_sampled description String Date of sample
attribute Date_sampled long_name String Date Sampled
attribute Date_sampled nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute Date_sampled source_name String Date_sampled
attribute Date_sampled time_precision String 1970-01-01
attribute Date_sampled units String unitless
variable Net_size   short  
attribute Net_size _FillValue short 32767
attribute Net_size actual_range short 130, 200
attribute Net_size bcodmo_name String net_mesh
attribute Net_size description String Plankton net mesh size
attribute Net_size long_name String Net Size
attribute Net_size units String microns (um)
variable Filter_size   float  
attribute Filter_size _FillValue float NaN
attribute Filter_size actual_range float 0.2, 5.0
attribute Filter_size bcodmo_name String filter_size
attribute Filter_size description String Supor filter size
attribute Filter_size long_name String Filter Size
attribute Filter_size units String microns (um)
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 0.17976, 31.4
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -158.0, -21.59
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable time_zone   String  
attribute time_zone bcodmo_name String timezone
attribute time_zone description String Local time zone used for columns Date_sampled and Time_sampled.
attribute time_zone long_name String Time Zone
attribute time_zone units String unitless

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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