ERDDAP > info > bcodmo_dataset_713831

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	[Amino acid isotopes from mussels] - Amino acid isotopes from mussels along the California margin from 2009-2013 (Amino Acid Sediment 15N project) (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)		F   I   M	background			BCO-DMO	bcodmo_dataset_713831

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	Sampling Mussels were collected in the winter (Dec \u2013 Feb) of 2009\u20132010. Sites were chosen to be approximately evenly distributed along the CA coastline, with ,80 km geographic separation between each sampling site. Our main goal here was to sample mussels from a wide geographic range across the CCS, although for observing finer scale local or regional variations, a finer-scale sampling strategy would like be required. Typically 5 individual mussels were collected from each site, all between 30\u201340 mm maximum shell length, which were immediately placed on dry ice until further preparation. The adductor muscle of each individual was dissected for analysis. This tissue was selected because isotopic values in muscle tissue have shown relatively long turnover times; based on past growth data, mussels of this size would be expected to integrate approximately annual variability in suspended food source isotopic values for each location sampled. The dissected adductor tissue was carefully separated from other tissue types, rinsed with deionized water, refrozen, and then freeze-dried for 48 hrs. Lipids were removed \u00a0using petroleum ether in a Dionex Accelerated Solvent Extractor (Bannockburn, IL). Finally, in preparation for CSI-AA, composite samples were made from a subset of 13 collection sites. For each location chosen for CSI-AA (based on the bulk d15N record), 160.05 mg of lyophilized tissue was weighed and combined for each individual mussel (n = 5). Elemental and Bulk Isotopic Analyses Stable carbon (d13C) and nitrogen (d15N) isotope ratios were determined via elemental analyzer isotope ratio mass spectrometry (EA-IRMS) at the University of California, Santa Cruz, Stable Isotope Laboratory (UCSC-SIL; [http://emerald.ucsc.edu/~silab/](\\"http://emerald.ucsc.edu/~silab/\\")). Approximately 1 mg of each dry isolated DOM sample was weighed into tin capsules (Costec, 5 x 9 mm) for analysis. EA-IRMS analysis was conducted using a Carlo Erba CHNS-O EA1108-elemental analyzer interfaced via a ConFlo III device with a ThermoFinnigan Delta Plus XP isotope ratio mass spectrometer (Thermo Fisher Scientific). \u00a0Standards, EA-IRMS protocols, and correction routines followed standard UCSC-SIL protocols. Analytical uncertainties of n=3 replicate measurements of isotopic standards ranged from \u00b1 0.05 to 0.1\u2030 for both d13C and d15N. Carbon to nitrogen elemental ratios were similarly determined by elemental analysis. The presented ratios are atomic ratios (C/N)a normalized to the mass of C and N, but have been abbreviated as C/N throughout. Compound-specific amino acid Isotopic 13C Analyses Individual AA d13C values were measured as trifluoroacetyl isopropyl ester (TFA-IP) AA derivatives, after acid hydrolysis. Samples were hydrolyzed by adding 2.5 mg homogenized composite muscle tissue to 1 ml of 6 N HCl, and heating for 20 h at 110 deg C under nitrogen. After drying, AA isopropyl esters were prepared with a 1:5 mixture of AcCl:2-propanol (110 deg C, 60 min) and then acylated using a 1:3 mixture of di chloro - methane (DCM) and trifluoroacetic anhydride (TFAA) (100 deg C, 15 min). Derivatized AAs were dissolved in DCM to a final ratio of approximately 2.5 mg of original tissue to 250 ul DCM for injection on the gas chromatograph IRMS (GC-IRMS) system. Isotopic analysis was conducted on a Thermo Trace GC Ultra with inline oxidation and reduction furnaces, coupled to a ThermoFinnigan Delta Plus XP IRMS, equipped with a CTC Analytics autosampler.Derivatives (1 ul) were injected (250 deg C constant temperature) onto an Agilent DB-5 column (50 m \u00d7 0.32 mm ID \u00d7 0.52 um film thickness), with a He carrier flow rate of 2 ml min\u22121 (constant flow). Separations were achieved with a 4-ramp oven program: 52 deg C, 2 min hold; ramp 1 = 15 deg C min\u22121 to 75 deg C, hold for 2 min; ramp 2 = 4 deg C min\u22121 to 185 deg C, hold for 2 min; ramp 3 = 4 deg C min\u22121 to 200 deg C; ramp 4 = 30 deg C min\u22121 to 240 deg C, hold for 5 min. This method allowed for d13C determination of the following AAs in mussel tissue: non-essential AAs alanine (Ala), aspartic acid + asparagine (Asp), glutamic acid + glutamine (Glu), glycine (Gly), proline (Pro), serine (Ser), and tyrosine Tyr); and essential AAs leucine (Leu), isoleucine (Ile), valine (Val), phenylalanine (Phe), and threonine (Thr). Acid hydrolysis destroys tryptophan and cystine, so these were not detected, and it also deaminates\\\ asparagine to aspartic acid, and glutamine to glutamic acid. While the abbreviations Glx and Asx\\\ are sometimes used to denote the combined Gln+Glu and Asn+Asp peaks, in order to correspond better with extant CSI-AA literature, we have elected to simply use Asp and Glu abbreviations, as defined above. All samples were analyzed on the GC-IRMS in triplicate, and measured AA d13C values were corrected for the C added during derivatization, following the approach of Silfer et al. (1991). Reproducibility for tissue samples was typically less than <0.3\u2030 (n = 3). The average mean deviation for all tissue sample replicates was 0.4\u2030. Compound-specific amino acid Isotopic 15N Analyses Amino acid d15N values were measured as Trifluoroacetyl isopropyl ester (TFA- IP) AA derivatives, following protocols described in detail elsewhere (e.g.,. Briefly, samples were hydrolyzed (6 N HCl, 20 hr at 110uC) under nitrogen, and TFA derivatives subsequently prepared from free AA using a modified version of the protocol described by Silfer (Silfer et al. 1991): isopropyl esters were made with a 1:5 mixture of Acetyl Chloride (AcCl):2-propanol (110uC, 60 minutes), and then acylated using a 1:3 mixture of Dichloromethane:Trifluroacetyl acetate (DCM:TFAA) (100uC, 15 minutes). Derivatized AAs were dissolved in DCM to a final ratio of approximately 4 mg of original tissue to 250 ml DCM. After derivatization, samples were analyzed by a Varian gaschromatograph coupled to a Finnegan Delta-Plus isotope ratiomass spectrometer (GC-IRMS). AAs were separated using a 50 m, 0.32 ID Hewlett Packard Ultra-1 column with 1 mm film thickness. Under our analytical conditions, d15N values could be reproducibly measured for alanine (Ala), aspartic acid + asparagine (Asp), glutamic acid + glutamine (Glu), leucine (Leu), isoleucine (Ile), proline (Pro), valine (Val), glycine (Gly), lysine (Lys), serine (Ser), phenylalanine (Phe), threonine (Thr), and tyrosine (Tyr) (Fig. S4). Most AAs were measured with a standard error of ,1.0% (based on n = 4 injections), and the average mean deviations for individual AA d15N measurements across all tissue sample replicates was 0.5%.
attribute	NC_GLOBAL	awards_0_award_nid	String	704683
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1131816
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1131816
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	Candace O. Major
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	51690
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Mussel Data M. McCarthy, PI Version 24 August 2017
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	2017-08-24T21:04:20Z
attribute	NC_GLOBAL	date_modified	String	2019-06-11T17:24:45Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.713831.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-117.267
attribute	NC_GLOBAL	geospatial_lat_max	double	42.717
attribute	NC_GLOBAL	geospatial_lat_min	double	32.85
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-117.267
attribute	NC_GLOBAL	geospatial_lon_min	double	-124.467
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/713831
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	IR Mass Spec
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Used with Trace GC, interfaced via a ConFlo III and GCC device
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	714013
attribute	NC_GLOBAL	instruments_0_description	String	The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB16/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Isotope-ratio Mass Spectrometer
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	469
attribute	NC_GLOBAL	instruments_0_supplied_name	String	hermoFinnigan Delta Plus XP isotope ratio mass spectrometer (Thermo Fisher Scientific)
attribute	NC_GLOBAL	instruments_1_acronym	String	Gas Chromatograph
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Used with with a ThermoFinnigan Delta Plus XP isotope ratio mass spectrometer (Thermo Fisher Scientific)
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	714012
attribute	NC_GLOBAL	instruments_1_description	String	Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC)
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB02/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Gas Chromatograph
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	661
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Trace GC, interfaced via a ConFlo III and GCC device
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Interfaced via a ConFlo III device with a ThermoFinnigan Delta Plus XP isotope ratio mass spectrometer (Thermo Fisher Scientific)
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	714000
attribute	NC_GLOBAL	instruments_2_description	String	Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material.
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB01/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Elemental Analyzer
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	546339
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Carlo Erba CHNS-O EA1108-elemental analyzer
attribute	NC_GLOBAL	keywords	String	ala, Ala_stdev, asx, Asx_stdev, average, Average_Source, Average_Trophic, bco, bco-dmo, biological, bulk, Bulk_d13C, Bulk_d13C_stdev, Bulk_d15N, Bulk_d15N_stdev, chemical, d13, d15, data, dataset, deviation, dmo, element, erddap, glx, Glx_stdev, gly, Gly_stdev, habitat, Habitat_Type, identifier, ile, Ile_stdev, latitude, Latitude_degMin, leu, Leu_stdev, longitude, Longitude_degMin, lys, Lys_stdev, management, oceanography, office, phe, Phe_stdev, position, preliminary, pro, Pro_stdev, ser, Ser_stdev, site, source, standard, standard deviation, stdev, thr, Thr_stdev, trophic, Trophic_Position, type, tyr, Tyr_stdev, val, Val_stdev
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/713831/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/713831
attribute	NC_GLOBAL	Northernmost_Northing	double	42.717
attribute	NC_GLOBAL	param_mapping	String	{'713831': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/713831/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of California-Santa Cruz
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UC Santa Cruz
attribute	NC_GLOBAL	people_0_person_name	String	Matthew D. McCarthy
attribute	NC_GLOBAL	people_0_person_nid	String	557245
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 BCO-DMO
attribute	NC_GLOBAL	people_1_person_name	String	Hannah Ake
attribute	NC_GLOBAL	people_1_person_nid	String	650173
attribute	NC_GLOBAL	people_1_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_1_role_type	String	related
attribute	NC_GLOBAL	project	String	Amino Acid Sediment 15N
attribute	NC_GLOBAL	projects_0_acronym	String	Amino Acid Sediment 15N
attribute	NC_GLOBAL	projects_0_description	String	The bioavailability of nutrients plays a crucial role in oceanic biological productivity, the carbon cycle, and climate change. The global ocean inventory of nitrogen (N) is determined by the balance of N-fixation (sources) and denitrification (sinks). In this three-year project, a researcher from the University of California, Santa Cruz, will focus on developing compound-specific N isotope (d15N) analysis of amino acids as a new tool for understanding N source and transformation of organic matter in paleo-reservoirs. The offsets in the isotopic ratios of individual amino acid groups may yield information about trophic transfer, heterotrophic microbial reworking, and autotrophic versus heterotrophic sources. By measuring and comparing the bulk and amino acid d15N in size-fractioned samples from plankton tows, sediments traps, and multi-cores in oxic and suboxic depositional environments, the researcher will: (1) Provide a proxy of the d15N of average exported photoautotrophic organic matter; and (2) Provide a new level of detail into sedimentary organic N degradation and preservation. Broader impacts: This project will improve understanding of the fundamental underpinnings and behaviors of d15N amino acid patterns and how they behave in contrasting sedimentary environments, while also developing a potential paleoceanographic proxy. Funding will support a graduate student and undergraduate research at the institution. The researcher will also conduct community outreach in the form of a workshop/tutorial on the proxy development.
attribute	NC_GLOBAL	projects_0_end_date	String	2016-09
attribute	NC_GLOBAL	projects_0_geolocation	String	California Margin , Santa Barbara Basin , CA current system, Eastern Tropical Pacific
attribute	NC_GLOBAL	projects_0_name	String	The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records
attribute	NC_GLOBAL	projects_0_project_nid	String	704684
attribute	NC_GLOBAL	projects_0_start_date	String	2011-10
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	32.85
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Amino acid isotopes from mussels along the California margin from 2009-2013 (Amino Acid Sediment 15N project)
attribute	NC_GLOBAL	title	String	[Amino acid isotopes from mussels] - Amino acid isotopes from mussels along the California margin from 2009-2013 (Amino Acid Sediment 15N project) (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-124.467
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Site		String
attribute	Site	bcodmo_name	String	site
attribute	Site	description	String	Site where sampling occurred
attribute	Site	long_name	String	Site
attribute	Site	units	String	unitless
variable	Identifier		String
attribute	Identifier	bcodmo_name	String	unknown
attribute	Identifier	description	String	Sample ID
attribute	Identifier	long_name	String	Identifier
attribute	Identifier	units	String	unitless
variable	Habitat_Type		String
attribute	Habitat_Type	bcodmo_name	String	site_descrip
attribute	Habitat_Type	description	String	Description of habitat
attribute	Habitat_Type	long_name	String	Habitat Type
attribute	Habitat_Type	units	String	unitless
variable	n		byte
attribute	n	_FillValue	byte	127
attribute	n	actual_range	byte	3, 6
attribute	n	bcodmo_name	String	count
attribute	n	description	String	Number of samples analyzed
attribute	n	long_name	String	N
attribute	n	units	String	count
variable	Latitude_degMin		String
attribute	Latitude_degMin	bcodmo_name	String	latitude
attribute	Latitude_degMin	description	String	Latitude in degree minutes
attribute	Latitude_degMin	long_name	String	Latitude
attribute	Latitude_degMin	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LATX/
attribute	Latitude_degMin	standard_name	String	latitude
attribute	Latitude_degMin	units	String	Degree minutes
variable	Longitude_degMin		String
attribute	Longitude_degMin	bcodmo_name	String	longitude
attribute	Longitude_degMin	description	String	Longitude in degree minutes
attribute	Longitude_degMin	long_name	String	Longitude
attribute	Longitude_degMin	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/LONX/
attribute	Longitude_degMin	standard_name	String	longitude
attribute	Longitude_degMin	units	String	Degree minutes
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	32.85, 42.717
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 in decimal degrees
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	-124.467, -117.267
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 in decimal degress
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	element		String
attribute	element	bcodmo_name	String	element
attribute	element	description	String	Isotopic element; Nitrogen AA or Carbon AA
attribute	element	long_name	String	Element
attribute	element	units	String	unitless
variable	Bulk_d15N		float
attribute	Bulk_d15N	_FillValue	float	NaN
attribute	Bulk_d15N	actual_range	float	7.41, 11.52
attribute	Bulk_d15N	bcodmo_name	String	d15N
attribute	Bulk_d15N	description	String	15N/14N isotopic ratio
attribute	Bulk_d15N	long_name	String	Bulk D15 N
attribute	Bulk_d15N	units	String	per mil
variable	Bulk_d15N_stdev		float
attribute	Bulk_d15N_stdev	_FillValue	float	NaN
attribute	Bulk_d15N_stdev	actual_range	float	0.1, 0.5
attribute	Bulk_d15N_stdev	bcodmo_name	String	d15N
attribute	Bulk_d15N_stdev	description	String	Standard deviation of isotopic ratio
attribute	Bulk_d15N_stdev	long_name	String	Bulk D15 N Stdev
attribute	Bulk_d15N_stdev	units	String	per mil
variable	Bulk_d13C		float
attribute	Bulk_d13C	_FillValue	float	NaN
attribute	Bulk_d13C	actual_range	float	-17.3, -13.5
attribute	Bulk_d13C	bcodmo_name	String	d13C
attribute	Bulk_d13C	description	String	13C/12C isotopic ratio
attribute	Bulk_d13C	long_name	String	Bulk D13 C
attribute	Bulk_d13C	units	String	per mil
variable	Bulk_d13C_stdev		float
attribute	Bulk_d13C_stdev	_FillValue	float	NaN
attribute	Bulk_d13C_stdev	actual_range	float	0.1, 0.9
attribute	Bulk_d13C_stdev	bcodmo_name	String	d13C
attribute	Bulk_d13C_stdev	description	String	Standard deviation of isotopic ratio
attribute	Bulk_d13C_stdev	long_name	String	Bulk D13 C Stdev
attribute	Bulk_d13C_stdev	units	String	per mil
variable	Average_Trophic		float
attribute	Average_Trophic	_FillValue	float	NaN
attribute	Average_Trophic	actual_range	float	10.31, 15.94
attribute	Average_Trophic	bcodmo_name	String	unknown
attribute	Average_Trophic	description	String	Average d15N values of [ Alanine, Aspartic Acid, Glutamic Acid, Leucine, Isoleucine, Proline, Valine ]
attribute	Average_Trophic	long_name	String	Average Trophic
attribute	Average_Trophic	units	String	per mil
variable	Average_Source		float
attribute	Average_Source	_FillValue	float	NaN
attribute	Average_Source	actual_range	float	5.06, 10.27
attribute	Average_Source	bcodmo_name	String	unknown
attribute	Average_Source	description	String	Average d15N values of [ Glycine, Lysine, Phenylalanine, Serine, Tyrosine ]
attribute	Average_Source	long_name	String	Average Source
attribute	Average_Source	units	String	per mil
variable	Trophic_Position		float
attribute	Trophic_Position	_FillValue	float	NaN
attribute	Trophic_Position	actual_range	float	0.98, 1.8
attribute	Trophic_Position	bcodmo_name	String	unknown
attribute	Trophic_Position	description	String	Trophic Position; { [ (d15N Glutamic Acid - d15N Phenylalanine) - 3.4 ] / 7.6 } + 1
attribute	Trophic_Position	long_name	String	Trophic Position
attribute	Trophic_Position	units	String	unitless
variable	Ala		String
attribute	Ala	bcodmo_name	String	Ala
attribute	Ala	description	String	Alanine 15N or 13C value
attribute	Ala	long_name	String	Ala
attribute	Ala	units	String	per mil
variable	Ala_stdev		String
attribute	Ala_stdev	bcodmo_name	String	Ala
attribute	Ala_stdev	description	String	Alanine standard deviation
attribute	Ala_stdev	long_name	String	Ala Stdev
attribute	Ala_stdev	units	String	per mil
variable	Asx		float
attribute	Asx	_FillValue	float	NaN
attribute	Asx	actual_range	float	-21.0, 14.32
attribute	Asx	bcodmo_name	String	amino_conc
attribute	Asx	description	String	Asn+Asp 15N or 13C peak values
attribute	Asx	long_name	String	Asx
attribute	Asx	units	String	per mil
variable	Asx_stdev		float
attribute	Asx_stdev	_FillValue	float	NaN
attribute	Asx_stdev	actual_range	float	0.1, 0.9
attribute	Asx_stdev	bcodmo_name	String	amino_conc
attribute	Asx_stdev	description	String	Asx standard deviation
attribute	Asx_stdev	long_name	String	Asx Stdev
attribute	Asx_stdev	units	String	per mil
variable	Glx		float
attribute	Glx	_FillValue	float	NaN
attribute	Glx	actual_range	float	-25.8, 17.42
attribute	Glx	bcodmo_name	String	amino_conc
attribute	Glx	description	String	Gln+Glu 15N or 13C peak values
attribute	Glx	long_name	String	GLX
attribute	Glx	units	String	per mil
variable	Glx_stdev		float
attribute	Glx_stdev	_FillValue	float	NaN
attribute	Glx_stdev	actual_range	float	0.1, 1.3
attribute	Glx_stdev	bcodmo_name	String	amino_conc
attribute	Glx_stdev	description	String	Glx standard deviation
attribute	Glx_stdev	long_name	String	Glx Stdev
attribute	Glx_stdev	units	String	per mil
variable	Gly		float
attribute	Gly	_FillValue	float	NaN
attribute	Gly	actual_range	float	-50.6, 11.1
attribute	Gly	bcodmo_name	String	Gly
attribute	Gly	description	String	Glycine 15N or 13C value
attribute	Gly	long_name	String	GLY
attribute	Gly	units	String	per mil
variable	Gly_stdev		float
attribute	Gly_stdev	_FillValue	float	NaN
attribute	Gly_stdev	actual_range	float	0.1, 1.2
attribute	Gly_stdev	bcodmo_name	String	Gly
attribute	Gly_stdev	description	String	Glycine standard deviation
attribute	Gly_stdev	long_name	String	Gly Stdev
attribute	Gly_stdev	units	String	per mil
variable	Ile		float
attribute	Ile	_FillValue	float	NaN
attribute	Ile	actual_range	float	-16.2, 16.01
attribute	Ile	bcodmo_name	String	Ile
attribute	Ile	description	String	Isoleucine 15N or 13 C value
attribute	Ile	long_name	String	Ile
attribute	Ile	units	String	per mil
variable	Ile_stdev		float
attribute	Ile_stdev	_FillValue	float	NaN
attribute	Ile_stdev	actual_range	float	0.1, 0.9
attribute	Ile_stdev	bcodmo_name	String	Ile
attribute	Ile_stdev	description	String	Isoleucine standard deviation
attribute	Ile_stdev	long_name	String	Ile Stdev
attribute	Ile_stdev	units	String	per mil
variable	Leu		float
attribute	Leu	_FillValue	float	NaN
attribute	Leu	actual_range	float	-30.1, 16.73
attribute	Leu	bcodmo_name	String	Leu
attribute	Leu	description	String	Leucine 15N or 13C value
attribute	Leu	long_name	String	Leu
attribute	Leu	units	String	per mil
variable	Leu_stdev		float
attribute	Leu_stdev	_FillValue	float	NaN
attribute	Leu_stdev	actual_range	float	0.1, 1.3
attribute	Leu_stdev	bcodmo_name	String	Leu
attribute	Leu_stdev	description	String	Leucine standard deviation
attribute	Leu_stdev	long_name	String	Leu Stdev
attribute	Leu_stdev	units	String	per mil
variable	Lys		String
attribute	Lys	bcodmo_name	String	Lys
attribute	Lys	description	String	Lysine 15N or 13C value
attribute	Lys	long_name	String	LYS
attribute	Lys	units	String	per mil
variable	Lys_stdev		String
attribute	Lys_stdev	bcodmo_name	String	Lys
attribute	Lys_stdev	description	String	Lysine standard deviation
attribute	Lys_stdev	long_name	String	Lys Stdev
attribute	Lys_stdev	units	String	per mil
variable	Phe		float
attribute	Phe	_FillValue	float	NaN
attribute	Phe	actual_range	float	-28.4, 10.66
attribute	Phe	bcodmo_name	String	p_Ala
attribute	Phe	description	String	Phenylalanine 15N or 13C value
attribute	Phe	long_name	String	Phe
attribute	Phe	units	String	per mil
variable	Phe_stdev		float
attribute	Phe_stdev	_FillValue	float	NaN
attribute	Phe_stdev	actual_range	float	0.1, 1.4
attribute	Phe_stdev	bcodmo_name	String	p_Ala
attribute	Phe_stdev	description	String	Phenylalanine standard deviation
attribute	Phe_stdev	long_name	String	Phe Stdev
attribute	Phe_stdev	units	String	per mil
variable	Pro		String
attribute	Pro	bcodmo_name	String	amino_conc
attribute	Pro	description	String	Proline 15N or 13C value
attribute	Pro	long_name	String	Pro
attribute	Pro	units	String	per mil
variable	Pro_stdev		String
attribute	Pro_stdev	bcodmo_name	String	amino_conc
attribute	Pro_stdev	description	String	Proline standard deviation
attribute	Pro_stdev	long_name	String	Pro Stdev
attribute	Pro_stdev	units	String	per mil
variable	Ser		float
attribute	Ser	_FillValue	float	NaN
attribute	Ser	actual_range	float	-3.1, 9.87
attribute	Ser	bcodmo_name	String	Ser
attribute	Ser	description	String	Serine 15N or 13C value
attribute	Ser	long_name	String	Ser
attribute	Ser	units	String	per mil
variable	Ser_stdev		float
attribute	Ser_stdev	_FillValue	float	NaN
attribute	Ser_stdev	actual_range	float	0.0, 1.0
attribute	Ser_stdev	bcodmo_name	String	Ser
attribute	Ser_stdev	description	String	Serine standard deviation
attribute	Ser_stdev	long_name	String	Ser Stdev
attribute	Ser_stdev	units	String	per mil
variable	Thr		float
attribute	Thr	_FillValue	float	NaN
attribute	Thr	actual_range	float	-23.5, 3.16
attribute	Thr	bcodmo_name	String	Thr
attribute	Thr	description	String	Threonine 15N or 13C value
attribute	Thr	long_name	String	THR
attribute	Thr	units	String	per mil
variable	Thr_stdev		float
attribute	Thr_stdev	_FillValue	float	NaN
attribute	Thr_stdev	actual_range	float	0.1, 0.8
attribute	Thr_stdev	bcodmo_name	String	Thr
attribute	Thr_stdev	description	String	Threonine standard deviation
attribute	Thr_stdev	long_name	String	Thr Stdev
attribute	Thr_stdev	units	String	per mil
variable	Tyr		String
attribute	Tyr	bcodmo_name	String	Tyr
attribute	Tyr	description	String	Tyrosine 15N or 13C value
attribute	Tyr	long_name	String	TYR
attribute	Tyr	units	String	per mil
variable	Tyr_stdev		String
attribute	Tyr_stdev	bcodmo_name	String	Tyr
attribute	Tyr_stdev	description	String	Tyrosine standard deviation
attribute	Tyr_stdev	long_name	String	Tyr Stdev
attribute	Tyr_stdev	units	String	per mil
variable	Val		float
attribute	Val	_FillValue	float	NaN
attribute	Val	actual_range	float	-22.2, 16.54
attribute	Val	bcodmo_name	String	Val
attribute	Val	description	String	Valine 15N or 13C value
attribute	Val	long_name	String	Val
attribute	Val	units	String	per mil
variable	Val_stdev		float
attribute	Val_stdev	_FillValue	float	NaN
attribute	Val_stdev	actual_range	float	0.0, 1.3
attribute	Val_stdev	bcodmo_name	String	Val
attribute	Val_stdev	description	String	Valine standard deviation
attribute	Val_stdev	long_name	String	Val Stdev
attribute	Val_stdev	units	String	per mil

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.