ERDDAP > info > bcodmo_dataset_771701

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
	set	data	graph		files	public	[RV Atlantic Explorer BATS BV50: CO2 and PO4] - Bulk and cell-specific CO2 fixation and PO4 uptake from Atlantic Explorer cruise AE1524 (BATS validation cruise BV50), September 2015 (Collaborative Research: Role of small-sized protists in the microbial loop with emphasis on interactions between mixotrophic protists and picocyanobacteria)		F   I   M	background			BCO-DMO	bcodmo_dataset_771701

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	Seawater was collected into acid washed, ultra-pure water and sample rinsed, clear polycarbonate incubation bottles. PO4 assimilation rates were measured in triplicate 70-mL samples with ~259 kBq of added 33P-PO4 (Perkin-Elmer #NEZ08000; carrier free), incubated for 30 min to 1h. CO2 fixation rates were measured in duplicate 70-mL samples with ~17 MBq of added 14C-sodium bicarbonate (Perkin Elmer #NEC086H000, 1.6 GBq/mmol), incubated from dawn to dusk. Samples were incubated under simulated light and temperature conditions measured at the sampling site. A killed control sample was also prepared by adding paraformaldehyde (PFA, 2 % final concentration prepared with electron microscopy grade 16 % aqueous solution, Electron Microscopy Sciences) at least 15 minutes before introducing the radioisotope, in order to account for unincorporated radioactivity. At the end of incubation, samples were fixed with PFA (2% final, for 15-min in the dark), and triplicate 20-microliters aliquots were sampled to measure the total radioactivity added (with beta- phenylethylamine for 14C samples). The total microbial activity was determined by filtering a 3-mL aliquot through a 0.2-micron, pore-size polycarbonate membrane filter (Nuclepore). To reduce unincorporated 33P-PO4, the membrane filter was placed onto a filter type HA soaked in 100 mM KH2PO4, then rinsed three times with ~1 mL of 0.2-micron filtered seawater. To remove unincorporated 14C-sodium bicarbonate, the filter was acidified with 0.5 mL of 1N HCl for 24 h. To determine plankton groups specific uptake rates, a 20-mL aliquot was passed through a 0.2-micron polycarbonate membrane filter under gentle vacuum filtration, and the remaining volume from the 70-mL incubation bottle was passed through a 0.8-micron polycarbonate membrane filter. The 0.2-micron and 0.8-micron filters were stored in separate cryovials with 2 mL and 4 mL of the corresponding radiolabeled sample, respectively, vortexed to detach the cells from the filter, then flash frozen for later flow cytometric sorting (see below). The added radioactivity and total microbial activity were assayed by liquid scintillation counting in 7-mL plastic scintillation vials (Simport) with 4 mL of scintillation cocktail (Ultima Gold LLT, Perkin Elmer) added. Turnover times (TPO4, h) were calculated by dividing the total radioactivity added (Bq L\u20131) by the rate of radiolabel uptake into the particulate fraction (Bq L\u20131 h\u20131). PO4 assimilation rates (nmol P L\u20131 h\u20131) were calculated by dividing PO4 concentration by TPO4. We used PO4 concentration estimated from a concentration series bioassays following the method of Wright and Hobbie (1966). Briefly, seawater samples were amended with non-radioactive PO4 to target additions of 0, 5, 10, 25, 50, 75, and 150 nmol PO4 L\u20131, spiked with 33P-PO4, incubated and sampled as described above. The resulting TPO4 values were plotted against a corresponding concentration of PO4, and extrapolated using linear regression (TPO4 = a x PO4 + b) to estimate the ambient concentration (Sn = b/a), which represents an upper estimate of ambient concentrations as detailed in Zubkov and Tarran (2005). Results from these bioassays were also used to calculate the Michaelis-Menten kinetic parameters for PO4 assimilation rates (Vmax, the maximum rate at saturating substrate concentration and Km, the half-saturation constant). For cell sorting of Prochlorococcus, Synechococcus, pigmented and non- pigmented protists, the Influx flow cytometer was set at the highest sorting purity (1.0 drop single mode) and potential attached cells were discarded using a pulse width vs. forward scatter plot. The drop delay was calibrated using Accudrop Beads (BD Biosciences, USA) and verified manually by sorting a specified number of reference beads onto a glass slide and counting the beads under an epifluorescence microscope. Performance was validated as described in Duhamel et al. (2018). Three to four proportional numbers of cells from the same incubation sample were sorted for each target population. Sorted cells were assessed by liquid scintillation analysis following previously published protocols (Talarmin et al. 2011; Duhamel et al. 2012; Rii et al. 2016). The 14C-labeled samples were acidified with 1 mL of 2 mol L-1 HCl for 24 h to remove any unincorporated 14C-sodium bicarbonate. For each group, at least three samples were sorted and regression analysis between the number of cells sorted and the radioactivity taken up by the sorted cells was used to calculate the per cell activity (dpm cell\u22121). Radioactivity in sorted cells from the PFA-killed control samples (dpm cell\u22121) was deduced from radioactivity in the sorted cells from the respective samples (dpm cell\u22121). The cell-specific assimilation rate (nmol cell-1 h-1) was calculated by dividing the radioactivity per cell (dpm cell\u22121) by the total microbial activity (dpm L\u22121) measured in the same sample, and then multiplied by the total microbial assimilation rate at ambient substrate concentration (nmol L\u22121 h\u22121). Michaelis\u2013 Menten kinetic parameters were determined using the Michaelis\u2013Menten model in Prism 6.
attribute	NC_GLOBAL	awards_0_award_nid	String	553098
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1458070
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=1458070
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_0_program_manager	String	Michael E. Sieracki
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	50446
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	BV50_C&P: Bulk and cell-specific CO2 fixation and PO4 uptake Atlantic Explorer cruise AE1524 (BATS validation cruise BV50), September 2015 PI: S. Duhamel, O.R. Anderson (LDEO), E. Kim (Amer. Museum Natl. History) version date: 2019-06-24 Published in Duhamel et al. 2019, doi: 10.1002/lno.11193, Table 3
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/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2019-06-24T19:17:57Z
attribute	NC_GLOBAL	date_modified	String	2019-08-19T13:36:44Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.771701.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-64.14
attribute	NC_GLOBAL	geospatial_lat_max	double	33.25
attribute	NC_GLOBAL	geospatial_lat_min	double	22.16
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-64.14
attribute	NC_GLOBAL	geospatial_lon_min	double	-65.37
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/771701
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Fluorometer
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Used to measure fluorescence
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	771712
attribute	NC_GLOBAL	instruments_0_description	String	A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/113/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Fluorometer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	484
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Horiba FluoroMax-4 spectrofluorometer
attribute	NC_GLOBAL	instruments_1_acronym	String	LSC
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Used to assay sample radioactivity.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	771714
attribute	NC_GLOBAL	instruments_1_description	String	Liquid scintillation counting is an analytical technique which is defined by the incorporation of the radiolabeled analyte into uniform distribution with a liquid chemical medium capable of converting the kinetic energy of nuclear emissions into light energy. Although the liquid scintillation counter is a sophisticated laboratory counting system used the quantify the activity of particulate emitting (ß and a) radioactive samples, it can also detect the auger electrons emitted from 51Cr and 125I samples.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB21/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Liquid Scintillation Counter
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	624
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Packard Tri-Carb 3110 TR liquid scintillation counter with ultra-low-level option kit
attribute	NC_GLOBAL	instruments_2_acronym	String	Flow Cytometer
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Used for flow cytometry analyses
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	771710
attribute	NC_GLOBAL	instruments_2_description	String	Flow cytometers (FC or FCM) are automated instruments that quantitate properties of single cells, one cell at a time. They can measure cell size, cell granularity, the amounts of cell components such as total DNA, newly synthesized DNA, gene expression as the amount messenger RNA for a particular gene, amounts of specific surface receptors, amounts of intracellular proteins, or transient signalling events in living cells. (from: http://www.bio.umass.edu/micro/immunology/facs542/facswhat.htm)
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB37/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Flow Cytometer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	660
attribute	NC_GLOBAL	instruments_2_supplied_name	String	BD Influx flow cytometer
attribute	NC_GLOBAL	instruments_3_dataset_instrument_description	String	Used to count calibration beads.
attribute	NC_GLOBAL	instruments_3_dataset_instrument_nid	String	771715
attribute	NC_GLOBAL	instruments_3_description	String	Instruments that generate enlarged images of samples using the phenomena of fluorescence and phosphorescence instead of, or in addition to, reflection and absorption of visible light. Includes conventional and inverted instruments.
attribute	NC_GLOBAL	instruments_3_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB06/
attribute	NC_GLOBAL	instruments_3_instrument_name	String	Microscope-Fluorescence
attribute	NC_GLOBAL	instruments_3_instrument_nid	String	695
attribute	NC_GLOBAL	instruments_3_supplied_name	String	Epifluorescence microscope
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, carbon, carbon dioxide, chemical, chemistry, co2, CO2_14C, CO2_P_Euk_14C, CO2_Pro_14C, CO2_Syn_14C, concentration, cruise, data, dataset, dioxide, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Phosphate, erddap, euk, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, ocean, oceanography, oceans, office, phosphate, po4, PO4_33P, PO4_NP_Euk_33P, PO4_P_Euk_33P, PO4_Pro_33P, PO4_Syn_33P, preliminary, pro, science, sea, seawater, station, syn, vmax, water
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/771701/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/771701
attribute	NC_GLOBAL	Northernmost_Northing	double	33.25
attribute	NC_GLOBAL	param_mapping	String	{'771701': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/771701/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Lamont-Doherty Earth Observatory
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	LDEO
attribute	NC_GLOBAL	people_0_person_name	String	Dr Solange Duhamel
attribute	NC_GLOBAL	people_0_person_nid	String	542287
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	Lamont-Doherty Earth Observatory
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	LDEO
attribute	NC_GLOBAL	people_1_person_name	String	Dr O. Roger Anderson
attribute	NC_GLOBAL	people_1_person_nid	String	542313
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
attribute	NC_GLOBAL	people_2_affiliation	String	American Museum of Natural History
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	AMNH
attribute	NC_GLOBAL	people_2_person_name	String	Dr Eunsoo Kim
attribute	NC_GLOBAL	people_2_person_nid	String	542321
attribute	NC_GLOBAL	people_2_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_2_role_type	String	originator
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Nancy Copley
attribute	NC_GLOBAL	people_3_person_nid	String	50396
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	Small protists in microbial loop
attribute	NC_GLOBAL	projects_0_acronym	String	Small protists in microbial loop
attribute	NC_GLOBAL	projects_0_description	String	This project is an NSF Collaborative Research Project. Description from NSF award abstract: Protists are mostly single-celled, eukaryotic microorganisms, including algae and protozoans. They are ubiquitous, diverse, and major contributors in oceanic food webs. Determining their taxonomic identity and the extent to which they contribute to carbon and nutrient cycles (whereby carbon and minerals are continuously changed chemically in the environment and reincorporated in living organisms) are among the major goals of this study. Moreover, the investigators will study how they respond to environmental change, one of the most important and challenging current problems in oceanography. Answering these questions is fundamental to understanding how living organisms in the ocean environment interact with one another and contribute to the health and productivity of the ocean. The main goal of the project is to investigate biotic interactions of small-sized protists with very tiny cyanobacteria also known as picocyanobacteria, which represent the most abundant photosynthetic organisms in the ocean. These studies will be done both in ocean environments and in laboratory experimental settings. Considering the limited knowledge on this topic, the work planned in this project promises important and exciting discoveries. Two early career female scientists will lead this project. In addition, one postdoctoral scholar, one graduate student, and at least three undergraduate summer interns will participate in the proposed research activities. The principal investigators will create a strong public outreach program that will engage middle school students in hands-on activities related to ocean sciences, and will produce a video in collaboration with the Education Department at the American Museum of Natural History. The video will summarize the major findings of the proposed research. It can be used in schools and in informal learning settings, including access by the public on the Internet through the Museum's Science Bulletins web page. Single-celled eukaryotic microorganisms or protists, though largely outnumbered by picocyanobacteria (Prochlorococcus and Synechococcus), contribute significantly to ocean carbon biomass and primary productivity, partially by virtue of their larger cell size. In addition, small planktonic protists can regulate picocyanobacteria abundance through grazing. The main goal of this project is to investigate biotic interactions of planktonic pico- and nano-sized eukaryotes with picocyanobacteria, both in the field and in laboratory settings. A set of field- and culture-based experiments will be conducted, using state-of-the-art methodologies, including fluorescence-activated cell sorting, isotope and fluorescent stain labeling, and next-generation molecular sequencing to address the research objectives. Operationally, this project is structured around two objectives: Objective 1 is to assess the contribution of small protists to carbon and nutrient cycling through measurement of primary production, bacterivory, mixotrophy and phosphorus uptake in major microbial groups, and evaluate the role of nutrient availability in controlling mixotrophy. Objective 2 will focus on assessing the distribution and diversity of small-sized protists that feed on picocyanobacteria and further evaluate the role of nutrient availability among the protists that are mixotrophic. To reach these objectives field-based experiments will be conducted in contrasted environments: the North Pacific subtropical gyre (phosphorus replete, dominated by Prochlorococcus at Sta. ALOHA) and the North West Mediterranean sea (phosphorus deplete, dominated by Synechococcus at Sta. DYFAMED). Complementary experiments using model protists and picocyanobacteria will be conducted using controlled cultures in the lab. The work will provide critical new information on the phylogenetic diversity and function of marine microbial eukaryotes, with emphasis on their ecological role as predators (phagotrophy, mixotrophy) on, and competitors with, the picoyanobacteria Prochlorococcus and Synechococcus.
attribute	NC_GLOBAL	projects_0_end_date	String	2018-05
attribute	NC_GLOBAL	projects_0_geolocation	String	North Pacific subtropical gyre (Station ALOHA) and Northwestern Mediterranean Sea (Station DYFAMED)
attribute	NC_GLOBAL	projects_0_name	String	Collaborative Research: Role of small-sized protists in the microbial loop with emphasis on interactions between mixotrophic protists and picocyanobacteria
attribute	NC_GLOBAL	projects_0_project_nid	String	542308
attribute	NC_GLOBAL	projects_0_start_date	String	2015-06
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	22.16
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	subsetVariables	String	cruise
attribute	NC_GLOBAL	summary	String	Bulk and cell-specific CO2 fixation and PO4 uptake from Atlantic Explorer cruise AE1524 (BATS validation cruise BV50), September 2015. Phosphate uptake rates were measured in Prochlorococcus, Synechococcus, pigmented eukaryotes, and unpigmented eukaryotes. Also reported are CO2 fixation rate by Prochlorococcus, Synechococcus, and pigmented eukaryotes.
attribute	NC_GLOBAL	title	String	[RV Atlantic Explorer BATS BV50: CO2 and PO4] - Bulk and cell-specific CO2 fixation and PO4 uptake from Atlantic Explorer cruise AE1524 (BATS validation cruise BV50), September 2015 (Collaborative Research: Role of small-sized protists in the microbial loop with emphasis on interactions between mixotrophic protists and picocyanobacteria)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-65.37
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	cruise		String
attribute	cruise	bcodmo_name	String	cruise_id
attribute	cruise	description	String	cruise identifier
attribute	cruise	long_name	String	Cruise
attribute	cruise	units	String	unitless
variable	station		byte
attribute	station	_FillValue	byte	127
attribute	station	actual_range	byte	3, 14
attribute	station	bcodmo_name	String	station
attribute	station	description	String	station identifier
attribute	station	long_name	String	Station
attribute	station	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	22.16, 33.25
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	station latitude; north is positive
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/
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	-65.37, -64.14
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	station longitude; east is positive
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/
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	PO4		float
attribute	PO4	_FillValue	float	NaN
attribute	PO4	actual_range	float	0.6, 2.3
attribute	PO4	bcodmo_name	String	PO4
attribute	PO4	description	String	Phosphate concentration estimate
attribute	PO4	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4	units	String	nanomol Phosphate/liter (nmol P L-1)
variable	PO4_33P		float
attribute	PO4_33P	_FillValue	float	NaN
attribute	PO4_33P	actual_range	float	0.1, 0.33
attribute	PO4_33P	bcodmo_name	String	P33_PO4_uptake
attribute	PO4_33P	description	String	Bulk phosphate uptake rate  (>0.2 microns)
attribute	PO4_33P	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4_33P	units	String	nanomol Phosphate/liter/hour (nmol P L-1 h-1)
variable	Vmax		float
attribute	Vmax	_FillValue	float	NaN
attribute	Vmax	actual_range	float	0.54, 0.94
attribute	Vmax	bcodmo_name	String	unknown
attribute	Vmax	description	String	Phosphate uptake kinetic parameter Vmax
attribute	Vmax	long_name	String	Vmax
attribute	Vmax	units	String	nanomol Phosphate/liter/hour (nmol P L-1 h-1)
variable	Km		float
attribute	Km	_FillValue	float	NaN
attribute	Km	actual_range	float	2.4, 5.2
attribute	Km	bcodmo_name	String	unknown
attribute	Km	description	String	Phosphate uptake kinetic parameter Km
attribute	Km	long_name	String	KM
attribute	Km	units	String	nanomol Phosphate/liter (nmol P L-1)
variable	CO2_14C		float
attribute	CO2_14C	_FillValue	float	NaN
attribute	CO2_14C	actual_range	float	1.9, 3.6
attribute	CO2_14C	bcodmo_name	String	unknown
attribute	CO2_14C	description	String	Bulk CO2 fixation rate (>0.2 microns)
attribute	CO2_14C	long_name	String	CO2 14 C
attribute	CO2_14C	units	String	milligrams Carbon/meter^3/day (mg C m-3 d-1)
variable	PO4_Pro_33P		float
attribute	PO4_Pro_33P	_FillValue	float	NaN
attribute	PO4_Pro_33P	actual_range	float	0.1, 0.6
attribute	PO4_Pro_33P	bcodmo_name	String	P33_PO4_uptake
attribute	PO4_Pro_33P	description	String	Phosphate uptake rate by Prochlorococcus
attribute	PO4_Pro_33P	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4_Pro_33P	units	String	attomole/cell/hour (amol cell-1 h-1)
variable	PO4_Syn_33P		float
attribute	PO4_Syn_33P	_FillValue	float	NaN
attribute	PO4_Syn_33P	actual_range	float	0.2, 1.2
attribute	PO4_Syn_33P	bcodmo_name	String	P33_PO4_uptake
attribute	PO4_Syn_33P	description	String	Phosphate uptake rate by Synechococcus
attribute	PO4_Syn_33P	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4_Syn_33P	units	String	attomole/cell/hour (amol cell-1 h-1)
variable	PO4_P_Euk_33P		float
attribute	PO4_P_Euk_33P	_FillValue	float	NaN
attribute	PO4_P_Euk_33P	actual_range	float	0.4, 2.6
attribute	PO4_P_Euk_33P	bcodmo_name	String	P33_PO4_uptake
attribute	PO4_P_Euk_33P	description	String	Phosphate uptake rate by pigmented eukaryotes
attribute	PO4_P_Euk_33P	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4_P_Euk_33P	units	String	attomole/cell/hour (amol cell-1 h-1)
variable	PO4_NP_Euk_33P		float
attribute	PO4_NP_Euk_33P	_FillValue	float	NaN
attribute	PO4_NP_Euk_33P	actual_range	float	0.4, 1.6
attribute	PO4_NP_Euk_33P	bcodmo_name	String	P33_PO4_uptake
attribute	PO4_NP_Euk_33P	description	String	Phosphate uptake rate by non-pigmented eukaryotes
attribute	PO4_NP_Euk_33P	long_name	String	Mass Concentration Of Phosphate In Sea Water
attribute	PO4_NP_Euk_33P	units	String	attomole/cell/hour (amol cell-1 h-1)
variable	CO2_Pro_14C		float
attribute	CO2_Pro_14C	_FillValue	float	NaN
attribute	CO2_Pro_14C	actual_range	float	0.9, 1.4
attribute	CO2_Pro_14C	bcodmo_name	String	unknown
attribute	CO2_Pro_14C	description	String	CO2 fixation rate by Prochlorococcus
attribute	CO2_Pro_14C	long_name	String	CO2 Pro 14 C
attribute	CO2_Pro_14C	units	String	femtogram Carbon/cell/hour (fg C cell-1 h-1)
variable	CO2_Syn_14C		float
attribute	CO2_Syn_14C	_FillValue	float	NaN
attribute	CO2_Syn_14C	actual_range	float	2.6, 7.9
attribute	CO2_Syn_14C	bcodmo_name	String	unknown
attribute	CO2_Syn_14C	description	String	CO2 fixation rate by Synechococcus
attribute	CO2_Syn_14C	long_name	String	CO2 Syn 14 C
attribute	CO2_Syn_14C	units	String	femtogram Carbon/cell/hour (fg C cell-1 h-1)
variable	CO2_P_Euk_14C		float
attribute	CO2_P_Euk_14C	_FillValue	float	NaN
attribute	CO2_P_Euk_14C	actual_range	float	68.8, 88.0
attribute	CO2_P_Euk_14C	bcodmo_name	String	unknown
attribute	CO2_P_Euk_14C	description	String	CO2 fixation rate by pigmented eukaryotes
attribute	CO2_P_Euk_14C	long_name	String	CO2 P Euk 14 C
attribute	CO2_P_Euk_14C	units	String	femtogram Carbon/cell/hour (fg C cell-1 h-1)

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