BCO-DMO ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Methodology described in Broek & McCarthy (2014):\n \nAA standards  \n Standard L-AA powders were purchased from Alfa Aesar and Acros Organics and\nused to prepare individual liquid standards (0.05 M), which were then combined\nas an equimolar mixture of 16 individual AAs (\\\"16 AA Standard\\\") for\ndeveloping separations. The 16 AA Standard contained the proteinaceous AAs:\nglycine (Gly), L-alanine (Ala), L-arginine (Arg), L-aspartic acid (Asp),\nL-glutamic acid (Glu), L-histidine His), L-isoleucine (Ile), L-leucine (Leu),\nL-lysine (Lys), D/L-methionine (Met), L-phenylalanine (Phe), L-proline (Pro),\nL-serine (Ser), L-threonine (Thr), L-valine (Val); and nonprotein AA nor-\nleucine(Nle), which ;is commonly used as an internal standard (Popp et al.\n2007; McCarthy et al. 2013). The \\u03b415N and \\u03b413C values for dry\nstandards were determined by standard EA-IRMS at the University of California,\nSanta Cruz Stable Isotope Laboratory (UCSC-SIL) following standard protocols\n([http://es.ucsc.edu/](\\\\\"http://es.ucsc.edu/\\\\\") ~ silab). Average precision\nof EA-IRMS \\u03b415N standard values was 0.11 \\u00b1 0.07 \\u2030.\nAdditionally, a commercially available equimolar AA standard mixture \\\"Pierce\nAmino Acid Standard H\\\" (Pierce H)(Thermo Scientific) containing the same AAs\nas the \\\"16 AA Standard\\\" with the exception of the nonprotein AA Nle and\naddition of the proteinaceous AAscysteine (Cys) and tyrosine (Tyr) was used to\nconstruct individual calibration curves, so as to verify relative molar\nabundance of individual AAs in natural samples.\n \nSample preparation:  \n The cyanobacteria sample (Spirulina Sp.) was obtained as a bulk commercial\ndry powder (Spirulina Pacifica, Nutrex Hawaii, Kailua-Kona, HI). This same\nsample has been used previously as a McCarthy laboratory internal quality\ncontrol standard, and its CSI-AA values have been measured repeatedly by\nGC-C-IRMS, allowing an investigation of the long-term accuracy and precision\nof the GC-C-IRMS instrument.\n \nCoastal mussel (Myilitus Califorianus) sample was collected in 2012 from Santa\nCruz, CA. The mussel was previously dissected, and the adductor muscle tissue\nremoved and lyophilized prior to storage. We used a subsample of adductor\nmuscle collected for a prior study (Vokhshoori and McCarthy 2014) hydrolyzing\nthe bulk lyophilized adductor muscle tissue directly without lipid extraction.\n \nThe deep-sea bamboo coral (genus isidella) sample was previously collected in\n2007 from Monterey Bay, CA, USA (36 44.6538N, 122 2.2329W, 870.2 m) (Hill,\npers. comm. 2011). A proteinaceous node was separated from the calcium\ncarbonate skeleton and oven dried (60 degrees C, 24 h).\n \nWhite sea bass muscle tissue was subsampled from an incidental recreational\ncatch in 2007, landed from Santa Cruz Island, Channel Islands, CA (J.\nPatterson, pers. comm. 2007). Fish muscle tissue was also lyophilized prior to\nhydrolysis.\n \nHarbor seal blood was collected in May-June 2007 from a wild animal in Tomales\nBay, CA (38 13.9N, 122 58.1W) under NMFS Research Permit no. 555-1565. Blood\nserum was purified, lipid extracted, and lyophilized prior to hydrolysis, as\ndescribed previously (Germain et al. 2011).\n \nFor all sample types, proteinaceous material was hydrolyzed by adding 40-50 mg\nof bulk dry sample to an 8 mL glass vial, followed by 5 mL of 6 N hydrochloric\nacid (HCl) at room temperature. The vials were flushed with nitrogen gas,\nsealed, and allowed to hydrolyze under standard conditions (110 degrees C, 20\nh). Hydrolysis under acidic conditions quantitatively deaminates asparagine\n(Asn) to aspartic acid, and glutamine (Gln) to glutamic acid (Barrett 1985).\nTherefore, in this protocol (and all others based on acid hydrolysis),\nmeasured Glu in fact represents Gln+Glu, and measured Asp represents Asp+Asn.\nWe note that while the abbreviations Glx and Asx are sometimes used to denote\nthese combined Gln+Glu and Asp+Asn fractions, we have elected to simply use\nAsp and Glu as abbreviations, as defined above, in order to correspond better\nwith prior TPCSIA literature. Additionally, acid hydrolysis is known to\ndestroy cysteine (Cys), precluding it from analysis (Barrett 1985). Resulting\nhydrolysates were dried to completion under nitrogen gas and brought up in 0.1\nN HCl to a final concentration of 1 mg tissue/ 100 L HCl. Approximately 75% of\neach of the resulting mixtures was reserved for HPLC/EA-IRMS analysis, and the\nremaining material was dried to completion for derivatization and subsequent\nGC-C-IRMS analysis.\n \nGC-C-IRMS Analysis\\u2028:  \n Trifluoroacetyl isopropyl ester (TFA-IP) AA derivatives were prepared using\nstandardized lab protocols, as described previously (McCarthy et al. 2013).\nBriefly, hydrolyzed samples were esterified in 300 uL 1:5 mixture of acetyl\nchloride:2-propanol (110 degrees C, 60 minutes). The resulting amino acid\nisopropyl esters were then acylated in 350 uL 1:3 mixture of dichloromethane\n(DCM):trifluoroacetic acid anhydride (100 degrees C, 15 minutes). Derivatized\nAAs were dissolved in DCM to a final ratio of 1 mg of original proteinaceous\nmaterial to 50 uL DCM. Isotopic analysis was conducted on a Thermo Trace GC\nUltra (Thermo Fisher Scientific, West Palm Beach, FL, USA) coupled via a\nThermo GC IsoLink to a ThermoFinnigan DeltaPlus XP isotope ratio monitoring\nmass spectrometer (Thermo Fisher Scientific).\\u00a0Derivatives (1 L) were\ninjected (injector temp. 250 degrees C constant) onto an Agilent DB-5 column\n(50 m x 0.32 mm ID x 0.52 um film thickness, Agilent Technologies, Inc., Santa\nClara, CA, USA), with a He carrier flow rate of 2 mL/min (constant-flow).\nSeparations were achieved with a four-ramp oven program: 52 deg C, 2 min hold;\nramp 1 = 15 deg C /min to 75 deg C, hold for 2 min; ramp 2 = 4 deg C /min to\n185 deg C, hold for 2 min; ramp 3 = 4 deg C /min to 200 deg C; ramp 4 = 30 deg\nC /min to 240 deg C, hold for 5 min. This method allows for the determination\nof 11-15 AAs depending on derivatization efficiency and instrument\nsensitivity. Values are typically obtained for Gly, Ala, Glu, Ile, Leu, Phe,\nPro, Ser, Thr, Val, Nle, and Lys.\\u00a0Values for Met, His and Arg are\nobtained only in some samples, depending on concentration and derivatization\nefficiency. For \\u03b415N AA values, samples were analyzed in quadruplicate\n(n=4) with bracketed lab AA isotopic standard mix for subsequent standard\noffset and drift corrections. Corrections based on authentic external\nstandards were applied using previously published protocols (McCarthy et al.\n2013).\\u2028\n \nHPLC/EA-IRMS:  \n Liquid chromatographic separations were conducted using a Shimadzu HPLC\nsystem (Shimadzu Scientific Instruments, Inc., Columbia, MD, USA) equipped\nwith: system controller (SCL-10A vp), degasser (DGU-20A5), 2 pumps (LC-20AD),\nautosampler (SIL-20A) with an adjustable injection volume of 0.1-100 uL, and\ncoupled to a Shimadzu automated fraction collector (FRC-20A). An adjustable\nflow splitter (Analytical Sales and Services, Inc., Pompton Plains, NJ, USA)\nwas used inline following the chromatography column to direct ~15% of the flow\nto a SEDERE (Alfortville, France) evaporative light scattering detector (ELSD-\nLT II, Sedex 85LT) for peak detection and quantitation. A semi-preparative\nscale SiELC Primesep A column (10 x 250 mm, 100 angstrom pore size, 5 um\nparticle size; SiELC Technologies Ltd., Prospect Heights, IL, USA) was used\nfor amino acid purification. The Primesep A column used here is a reverse-\nphase semi-preparative scale column embedded with strong acidic ion-pairing\ngroups. Such mixed phase columns have been developed specifically for the\nseparation of charged organic compounds as the acidic sites in the stationary\nphase interact with the charged functional groups and provide additional\nretention mechanisms to increase chromatographic separation potential. For a\nmore detailed description of the retention mechanisms of the Primesep A column\nsee (McCullagh et al. 2006; 2010).\\u2028\n \nTypically, 75-100 uL of sample solution was loaded onto the HPLC instrument. A\nbinary solvent ramp program was used consisting of 0.1% trifluoroacetic acid\n(TFA) in HPLC grade water (aqueous phase) and 0.1% TFA in acetonitrile\n(organic phase). The final solvent ramp program used for optimal separation\nwas as follows: starting with 100% aqueous / 0% organic; increased from 0 to\n0.5% organic from 0-30 minutes; increased to 15% organic from 30-35 minutes;\nincreased to 22.5% from 35-70 minutes; increased to 30% from 70-95 minutes;\nheld at 30% until 140 minutes. The column was then cleaned and equilibrated by\nincreasing to 100% and holding for 20 minutes; then decreasing to 50% and\nholding for an additional 15 minutes; then decreasing to 0% and holding until\nthe method ends at 180 minutes. A flow rate ramp is also employed in which the\ntotal flow rate is held at 2.5 mL/minute for 0-30 minutes; increased to 4.5\nmL/minute from 30-35 minutes; held at 4.5 mL/min from 35-170 minutes; then\ndecreased back to 2.5 mL/minute from 170-175 minutes and held until the\ncompletion of the analysis.\\u2028\n \nPurified AAs were collected into 3.5 mL tubes via the automated fraction\ncollector using time-based collections, and then transferred to 20 mL glass\nvials. The solvent was removed under vacuum using a Jouan centrifugal\nevaporator (Societe Jouan, Saint-Herblain, France) at a chamber temperature of\n60 degrees C. Dry AA residues were then re-dissolved into a small volume (~30\nL) of 0.1 N HCl, transferred into pre-ashed tin (Sn) EA capsules, and dried to\ncompletion in a 60 degrees C oven for 12 hours. Capsules were then pressed\ninto cubes and analyzed for \\u03b415N and \\u03b413C values by EA-IRMS. EA-IRMS\nanalysis was conducted in the UCSC shared Stable Isotope Laboratory facility\n(UCSC-SIL), using an EA-IRMS analyzer dedicated to smaller samples. This\nsystem uses a Carlo Erba CHNS-O EA1108-Elemental Analyzer, interfaced via a\nThermo Finnigan Gasbench II device to a Thermo Finnigan Delta Plus XP isotope\nratio mass spectrometer (Thermo Fisher Scientific), configured after Polissar\net al. (2009). For AAs in this study, we found that \\u2264 100 nmol quantities\nof purified AA material could be routinely measured using this instrument,\nalthough as discussed below a standard EA configuration could also equally be\nused. Raw EA-IRMS \\u03b415N and \\u03b413C values were corrected for instrument\ndrift and size effects using AA isotopic standards and standard correction\nprotocols used by the UCSC-SIL\n([http://es.ucsc.edu/~silab](\\\\\"http://es.ucsc.edu/~silab\\\\\")).\\u2028
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 (external link)
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 d15N \n  HPLC Method Glu and Phe 15N values \n PI: Matthew McCarthy (UCSC) \n Version: 02 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/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3  19 Dec 2019
attribute NC_GLOBAL date_created String 2017-08-02T19:10:59Z
attribute NC_GLOBAL date_modified String 2019-08-02T16:16:58Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.711958.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/711958 (external link)
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 Isotopic analysis was conducted on a Thermo Trace GC Ultra (Thermo Fisher Scientific, West Palm Beach, FL, USA) coupled via a Thermo GC IsoLink to a ThermoFinnigan DeltaPlus XP isotope ratio monitoring mass spectrometer (Thermo Fisher Scientific).
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 711967
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/ (external link)
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 ThermoFinnigan DeltaPlus XP isotope ratio monitoring mass spectrometer
attribute NC_GLOBAL instruments_1_acronym String HPLC
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Liquid chromatographic separations were conducted using a Shimadzu HPLC system (Shimadzu Scientific Instruments, Inc., Columbia, MD, USA) equipped with: system controller (SCL-10A vp), degasser (DGU-20A5), 2 pumps (LC-20AD), autosampler (SIL-20A) with an adjustable injection volume of 0.1-100 μL, and coupled to a Shimadzu automated fraction collector (FRC-20A).
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 711968
attribute NC_GLOBAL instruments_1_description String A High-performance liquid chromatograph (HPLC) is a type of liquid chromatography used to separate compounds that are dissolved in solution. HPLC instruments consist of a reservoir of the mobile phase, a pump, an injector, a separation column, and a detector. Compounds are separated by high pressure pumping of the sample mixture onto a column packed with microspheres coated with the stationary phase. The different components in the mixture pass through the column at different rates due to differences in their partitioning behavior between the mobile liquid phase and the stationary phase.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB11/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String High Performance Liquid Chromatograph
attribute NC_GLOBAL instruments_1_instrument_nid String 506
attribute NC_GLOBAL instruments_1_supplied_name String Shimadzu HPLC
attribute NC_GLOBAL instruments_2_acronym String Gas Chromatograph
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Derivatives (1 L) were injected (injector temp. 250 degrees C constant) onto an Agilent DB-5 column.
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 711969
attribute NC_GLOBAL instruments_2_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_2_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB02/ (external link)
attribute NC_GLOBAL instruments_2_instrument_name String Gas Chromatograph
attribute NC_GLOBAL instruments_2_instrument_nid String 661
attribute NC_GLOBAL instruments_2_supplied_name String Agilent DB-5 column
attribute NC_GLOBAL instruments_3_acronym String Gas Chromatograph
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Isotopic analysis was conducted on a Thermo Trace GC Ultra (Thermo Fisher Scientific, West Palm Beach, FL, USA) coupled via a Thermo GC IsoLink to a ThermoFinnigan DeltaPlus XP isotope ratio monitoring mass spectrometer (Thermo Fisher Scientific).
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 711966
attribute NC_GLOBAL instruments_3_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_3_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB02/ (external link)
attribute NC_GLOBAL instruments_3_instrument_name String Gas Chromatograph
attribute NC_GLOBAL instruments_3_instrument_nid String 661
attribute NC_GLOBAL instruments_3_supplied_name String Thermo Trace GC Ultra
attribute NC_GLOBAL instruments_4_dataset_instrument_description String EA-IRMS analysis was conducted in the UCSC shared Stable Isotope Laboratory facility (UCSC-SIL), using an EA-IRMS analyzer dedicated to smaller samples. This system uses a Carlo Erba CHNS-O EA1108-Elemental Analyzer, interfaced via a Thermo Finnigan Gasbench II device to a Thermo Finnigan Delta Plus XP isotope ratio mass spectrometer (Thermo Fisher Scientific).
attribute NC_GLOBAL instruments_4_dataset_instrument_nid String 711965
attribute NC_GLOBAL instruments_4_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_4_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB01/ (external link)
attribute NC_GLOBAL instruments_4_instrument_name String Elemental Analyzer
attribute NC_GLOBAL instruments_4_instrument_nid String 546339
attribute NC_GLOBAL instruments_4_supplied_name String Carlo Erba CHNS-O EA1108-elemental analyzer
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, d15, d15N_EA, d15N_EA_stdev, data, dataset, deviation, dmo, erddap, gcc, glu, Glu_d15N_GCC, Glu_d15N_GCC_stdev, Glu_d15N_HPLC, Glu_d15N_HPLC_stdev, hplc, management, oceanography, office, phe, Phe_d15N_GCC, Phe_d15N_GCC_stdev, Phe_d15N_HPLC, Phe_d15N_HPLC_stdev, preliminary, sample, standard, standard deviation, stdev, TP_GCC, TP_HPLC
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/711958/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/711958 (external link)
attribute NC_GLOBAL param_mapping String {'711958': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/711958/parameters (external link)
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 Shannon Rauch
attribute NC_GLOBAL people_1_person_nid String 51498
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.\nBroader impacts:\nThis 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 standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String N isotopic composition of Phenylalanine and Glutamic Acid from a number of organisms, demonstrating new HPLC protocol for precise isotopic measurements.
attribute NC_GLOBAL title String [d15N - HPLC Method Glu and Phe 15N values] - N isotopic composition of Phenylalanine and Glutamic Acid from a number of organisms, demonstrating new HPLC protocol for precise isotopic measurements (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable sample String
attribute sample bcodmo_name String sample
attribute sample description String Description of the sample type.
attribute sample long_name String Sample
attribute sample nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute sample units String unitless
variable Glu_d15N_GCC float
attribute Glu_d15N_GCC _FillValue float NaN
attribute Glu_d15N_GCC actual_range float 8.01, 29.43
attribute Glu_d15N_GCC bcodmo_name String d15N_bio
attribute Glu_d15N_GCC description String Glutamic Acid d15N value; determined by GC-C-IRMS. Average precision: +/- 0.5 per mil
attribute Glu_d15N_GCC long_name String Glu D15 N GCC
attribute Glu_d15N_GCC nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Glu_d15N_GCC units String per mil
variable Glu_d15N_GCC_stdev float
attribute Glu_d15N_GCC_stdev _FillValue float NaN
attribute Glu_d15N_GCC_stdev actual_range float 0.11, 0.4
attribute Glu_d15N_GCC_stdev bcodmo_name String d15N_bio
attribute Glu_d15N_GCC_stdev description String Standard deviation of the Glutamic Acid d15N value determined by GC-C-IRMS.
attribute Glu_d15N_GCC_stdev long_name String Glu D15 N GCC Stdev
attribute Glu_d15N_GCC_stdev nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Glu_d15N_GCC_stdev units String per mil
variable Phe_d15N_GCC float
attribute Phe_d15N_GCC _FillValue float NaN
attribute Phe_d15N_GCC actual_range float 7.55, 11.88
attribute Phe_d15N_GCC bcodmo_name String d15N_bio
attribute Phe_d15N_GCC description String Phenylalanine d15N value; determined by GC-C-IRMS. Average precision: +/- 1 per mil
attribute Phe_d15N_GCC long_name String Phe D15 N GCC
attribute Phe_d15N_GCC nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Phe_d15N_GCC units String per mil
variable Phe_d15N_GCC_stdev float
attribute Phe_d15N_GCC_stdev _FillValue float NaN
attribute Phe_d15N_GCC_stdev actual_range float 0.33, 0.61
attribute Phe_d15N_GCC_stdev bcodmo_name String d15N_bio
attribute Phe_d15N_GCC_stdev description String Standard deviation of the Phenylalanine d15N value determined by GC-C-IRMS.
attribute Phe_d15N_GCC_stdev long_name String Phe D15 N GCC Stdev
attribute Phe_d15N_GCC_stdev nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Phe_d15N_GCC_stdev units String per mil
variable TP_GCC float
attribute TP_GCC _FillValue float NaN
attribute TP_GCC actual_range float 0.56, 3.24
attribute TP_GCC bcodmo_name String unknown
attribute TP_GCC description String Trophic Position; determined by GC-C-IRMS.
attribute TP_GCC long_name String TP GCC
attribute TP_GCC units String unitless
variable Glu_d15N_HPLC float
attribute Glu_d15N_HPLC _FillValue float NaN
attribute Glu_d15N_HPLC actual_range float -4.59, 29.32
attribute Glu_d15N_HPLC bcodmo_name String d15N_bio
attribute Glu_d15N_HPLC description String Glutamic Acid d15N value; determined by HPLC/EA-IRMS. Average precision: +/- 0.5 per mil
attribute Glu_d15N_HPLC long_name String Glu D15 N HPLC
attribute Glu_d15N_HPLC nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Glu_d15N_HPLC units String per mil
variable Glu_d15N_HPLC_stdev float
attribute Glu_d15N_HPLC_stdev _FillValue float NaN
attribute Glu_d15N_HPLC_stdev actual_range float 0.16, 0.6
attribute Glu_d15N_HPLC_stdev bcodmo_name String d15N_bio
attribute Glu_d15N_HPLC_stdev description String Standard deviation of the Glutamic Acid d15N value determined by HPLC/EA-IRMS.
attribute Glu_d15N_HPLC_stdev long_name String Glu D15 N HPLC Stdev
attribute Glu_d15N_HPLC_stdev nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Glu_d15N_HPLC_stdev units String per mil
variable Phe_d15N_HPLC float
attribute Phe_d15N_HPLC _FillValue float NaN
attribute Phe_d15N_HPLC actual_range float 7.33, 9.94
attribute Phe_d15N_HPLC bcodmo_name String d15N_bio
attribute Phe_d15N_HPLC description String Phenylalanine d15N value; determined by HPLC/EA-IRMS. Average precision: +/- 1 per mil
attribute Phe_d15N_HPLC long_name String Phe D15 N HPLC
attribute Phe_d15N_HPLC nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Phe_d15N_HPLC units String per mil
variable Phe_d15N_HPLC_stdev float
attribute Phe_d15N_HPLC_stdev _FillValue float NaN
attribute Phe_d15N_HPLC_stdev actual_range float 0.13, 0.53
attribute Phe_d15N_HPLC_stdev bcodmo_name String d15N_bio
attribute Phe_d15N_HPLC_stdev description String Standard deviation of the Phenylalanine d15N value determined by HPLC/EA-IRMS.
attribute Phe_d15N_HPLC_stdev long_name String Phe D15 N HPLC Stdev
attribute Phe_d15N_HPLC_stdev nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute Phe_d15N_HPLC_stdev units String per mil
variable TP_HPLC float
attribute TP_HPLC _FillValue float NaN
attribute TP_HPLC actual_range float 0.62, 3.19
attribute TP_HPLC bcodmo_name String unknown
attribute TP_HPLC description String Trophic Position; determined by HPLC/EA-IRMS.
attribute TP_HPLC long_name String TP HPLC
attribute TP_HPLC units String unitless
variable d15N_EA float
attribute d15N_EA _FillValue float NaN
attribute d15N_EA actual_range float -4.128, 9.18
attribute d15N_EA bcodmo_name String d15N_bio
attribute d15N_EA description String 15N/14N isotopic ratio; determined by EA-IRMS. Average precision: +/- 0.1
attribute d15N_EA long_name String D15 N EA
attribute d15N_EA nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute d15N_EA units String permil (‰)
variable d15N_EA_stdev float
attribute d15N_EA_stdev _FillValue float NaN
attribute d15N_EA_stdev actual_range float 0.162, 0.2324
attribute d15N_EA_stdev bcodmo_name String d15N_bio
attribute d15N_EA_stdev description String Standard deviation of 15N/14N isotopic ratio determined by EA-IRMS.
attribute d15N_EA_stdev long_name String D15 N EA Stdev
attribute d15N_EA_stdev nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute d15N_EA_stdev units String permil (‰)

 
ERDDAP, Version 2.22
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