ERDDAP > info > bcodmo_dataset_921924_v1

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
		data	graph		files	public	[DDA nutrient acquisition] - Hemiaulus-Richelia physiological response to different nitrogen sources (META-DDA: METabolic Activities of Diatom-Diazotroph Associations)		M	background			BCO-DMO	bcodmo_dataset_921924_v1

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	cdm_data_type	String	Other
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_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	infoUrl	String	https://osprey.bco-dmo.org/dataset/921924
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	license	String	The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	summary	String	Diatom-diazotroph associations (DDAs) play an important role at the base of the food web by fixing both carbon dioxide and nitrogen gas into organic matter. The ability of DDAs to fix nitrogen allows the relatively large diatom host to survive under nitrogen-deplete conditions and, thus, contribute significantly to organic carbon export in oligotrophic waters. Yet, relatively little is known about this symbiosis, in part because it has historically been difficult to maintain DDAs in culture. Here, we isolated the DDA Hemiaulus-Richelia from the Sargasso Sea and developed a protocol to maintain it in laboratory culture for long time periods (years). Experiments were conducted to determine how Hemiaulus-Richelia responds to different nitrogen sources with measurements of growth and nitrogen fixation.
attribute	NC_GLOBAL	title	String	[DDA nutrient acquisition] - Hemiaulus-Richelia physiological response to different nitrogen sources (META-DDA: METabolic Activities of Diatom-Diazotroph Associations)
variable	Flask		String
attribute	Flask	long_name	String	Flask
attribute	Flask	units	String	unitless
variable	Time_gp		String
attribute	Time_gp	long_name	String	Time_gp
attribute	Time_gp	units	String	unitless
variable	Timepoint		String
attribute	Timepoint	long_name	String	Timepoint
attribute	Timepoint	units	String	days
variable	Treatment		String
attribute	Treatment	long_name	String	Treatment
attribute	Treatment	units	String	unitless
variable	RFU_Turner		float
attribute	RFU_Turner	actual_range	float	2.84, 17.3
attribute	RFU_Turner	long_name	String	Rfu_turner
attribute	RFU_Turner	units	String	relative fluorescence units
variable	chla		float
attribute	chla	actual_range	float	3.018398, 69.13649
attribute	chla	long_name	String	Chla
attribute	chla	units	String	micrograms per cell (ug/cell)
variable	phaeophytin		float
attribute	phaeophytin	actual_range	float	0.2793137, 12.58722
attribute	phaeophytin	long_name	String	Phaeophytin
attribute	phaeophytin	units	String	micrograms per cell (ug/cell)
variable	Hemiaulus_cellspermL		float
attribute	Hemiaulus_cellspermL	actual_range	float	953.678, 8213.115
attribute	Hemiaulus_cellspermL	long_name	String	Hemiaulus_cellsperml
attribute	Hemiaulus_cellspermL	units	String	cells per milliliter (cells/mL)
variable	Richelia_cellspermL		float
attribute	Richelia_cellspermL	actual_range	float	893.0482, 7941.176
attribute	Richelia_cellspermL	long_name	String	Richelia_cellsperml
attribute	Richelia_cellspermL	units	String	cells per milliliter (cells/mL)
variable	Asymb_cellspermL		float
attribute	Asymb_cellspermL	actual_range	float	520.7082, 3786.885
attribute	Asymb_cellspermL	long_name	String	Asymb_cellsperml
attribute	Asymb_cellspermL	units	String	cells per milliliter (cells/mL)
variable	Hemaiulus_mean_SA		float
attribute	Hemaiulus_mean_SA	actual_range	float	1327.065, 1789.848
attribute	Hemaiulus_mean_SA	long_name	String	Hemaiulus_mean_sa
attribute	Hemaiulus_mean_SA	units	String	square micrometers (um^2)
variable	Hemaiulus_mean_vol		float
attribute	Hemaiulus_mean_vol	actual_range	float	2703.862, 3894.185
attribute	Hemaiulus_mean_vol	long_name	String	Hemaiulus_mean_vol
attribute	Hemaiulus_mean_vol	units	String	cubic micrometers (um^3)
variable	Richelia_mean_SA		float
attribute	Richelia_mean_SA	actual_range	float	82.72939, 115.9413
attribute	Richelia_mean_SA	long_name	String	Richelia_mean_sa
attribute	Richelia_mean_SA	units	String	square micrometers (um^2)
variable	Richelia_mean_vol		float
attribute	Richelia_mean_vol	actual_range	float	41.40291, 71.29345
attribute	Richelia_mean_vol	long_name	String	Richelia_mean_vol
attribute	Richelia_mean_vol	units	String	cubic micrometers (um^3)
variable	NO3_uM		float
attribute	NO3_uM	actual_range	float	0.1517517, 8.522631
attribute	NO3_uM	long_name	String	No3_um
attribute	NO3_uM	units	String	micromolar (uM)
variable	NO2_uM		float
attribute	NO2_uM	actual_range	float	0.01840501, 0.173316
attribute	NO2_uM	long_name	String	No2_um
attribute	NO2_uM	units	String	micromolar (uM)
variable	NH4_uM		float
attribute	NH4_uM	actual_range	float	4.01E-5, 7.578243
attribute	NH4_uM	long_name	String	Nh4_um
attribute	NH4_uM	units	String	micromolar (uM)
variable	SiOH4_uM		float
attribute	SiOH4_uM	actual_range	float	14.86, 99.25337
attribute	SiOH4_uM	long_name	String	Sioh4_um
attribute	SiOH4_uM	units	String	micromolar (uM)
variable	PO4_uM		float
attribute	PO4_uM	actual_range	float	11.9313, 15.56466
attribute	PO4_uM	long_name	String	Po4_um
attribute	PO4_uM	units	String	micromolar (uM)
variable	TDN_uM		float
attribute	TDN_uM	actual_range	float	10.83, 23.2
attribute	TDN_uM	long_name	String	Tdn_um
attribute	TDN_uM	units	String	micromolar (uM)
variable	Part_vol_mL		int
attribute	Part_vol_mL	actual_range	int	94, 100
attribute	Part_vol_mL	long_name	String	Part_vol_ml
attribute	Part_vol_mL	units	String	milliliters (mL)
variable	PC		float
attribute	PC	actual_range	float	0.043, 0.262015
attribute	PC	long_name	String	Pc
attribute	PC	units	String	micromolar (uM)
variable	PN		float
attribute	PN	actual_range	float	0.007, 0.04988695
attribute	PN	long_name	String	Pn
attribute	PN	units	String	micromolar (uM)
variable	Fv_Fm		float
attribute	Fv_Fm	actual_range	float	0.766, 0.873
attribute	Fv_Fm	long_name	String	Fv_fm
attribute	Fv_Fm	units	String	unitless
variable	sigma		int
attribute	sigma	actual_range	int	541, 1099
attribute	sigma	long_name	String	Sigma
attribute	sigma	units	String	square Angstroms per quanta (Å^2 (quanta)^-1)
variable	d15N		float
attribute	d15N	actual_range	float	-5.86, 389.59
attribute	d15N	long_name	String	D15n
attribute	d15N	units	String	parts per thousand (ppt)
variable	massN_mg		float
attribute	massN_mg	actual_range	float	0.03, 0.309
attribute	massN_mg	long_name	String	Massn_mg
attribute	massN_mg	units	String	milligrams (mg)
variable	d13C		float
attribute	d13C	actual_range	float	205.98, 1933.71
attribute	d13C	long_name	String	D13c
attribute	d13C	units	String	parts per thousand (ppt)
variable	massC_mg		float
attribute	massC_mg	actual_range	float	0.197, 1.863
attribute	massC_mg	long_name	String	Massc_mg
attribute	massC_mg	units	String	milligrams (mg)
variable	atperc_15N2_N2		float
attribute	atperc_15N2_N2	actual_range	float	0.4555125, 1.30702
attribute	atperc_15N2_N2	long_name	String	Atperc_15n2_n2
attribute	atperc_15N2_N2	units	String	percent
variable	vol_filt_L		float
attribute	vol_filt_L	actual_range	float	0.15, 0.275
attribute	vol_filt_L	long_name	String	Vol_filt_l
attribute	vol_filt_L	units	String	liters (L)
variable	inc_time_min		int
attribute	inc_time_min	actual_range	int	1449, 1490
attribute	inc_time_min	long_name	String	Inc_time_min
attribute	inc_time_min	units	String	minutes
variable	pp_rate_ugCperLperday		float
attribute	pp_rate_ugCperLperday	actual_range	float	30.71771, 3223.586
attribute	pp_rate_ugCperLperday	long_name	String	Pp_rate_ugcperlperday
attribute	pp_rate_ugCperLperday	units	String	micrograms C per liter per day (ug C L^-1 d^-1)
variable	NFR_nmolNperLperday		float
attribute	NFR_nmolNperLperday	actual_range	float	-855.4695, 5803.451
attribute	NFR_nmolNperLperday	long_name	String	Nfr_nmolnperlperday
attribute	NFR_nmolNperLperday	units	String	nanomoles N per liter per day (nM N L^-1 d^-1)

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.