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     data   graph     files  public Bulk raw isotopic data from tissue samples from non-tuna species collected in the eastern
tropical Pacific Ocean onboard two NOAA research ships, David Starr Jordan and McArthur
II, (cruises SWFSC1630 and SWFSC1631) in 2006
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Sampling Methodology:\u00a0Zooplankton, small mesopelagic fishes, and squids
were collected from July 28 to December 8, 2006 during the National Oceanic
and Atmospheric Administration\u2019s (NOAA's) Stenella Abundance Research
(STAR) surveys (Gerrodette et al. 2008). We defined our study area to include
a subset of sample locations from the STAR surveys based on the presence of
both east-west and north-south productivity gradients across the region, with
greater surface chlorophyll a concentrations at the eastern end of the study
area and along the equator, according to published oceanographic data.
Zooplankton samples were collected with a cylindrical-conical bongo net (333
um mesh), fished to 200 m approximately two hours after sunset, and the
samples were frozen within one hour of collection. Specimens of euphausiid
crustaceans, Euphausia distinguenda (Ed) and E. tenera (Et) were sorted from
the thawed zooplankton samples in the laboratory. Specimens of mesopelagic
myctophid fishes Myctophum nitidulum (Mn) and Symbolophorus reversus (Sr) were
collected by dipnet at night. Specimens of the squids Dosidicus gigas (Dg) and
Sthenoteuthis oualaniensis (So) also were collected at night, using handlines
and jigs. (See Olson et al. 2010, Philbrick et al. 2001 for detailed methods).

Analytical Methodology:\u00a0Methods are described in Hetherington et al.
(2016). Briefly: Isotopic analysis of bulk muscle tissue or whole animals was
performed at the University of Hawaii\u2019s Isotope Biogeochemistry
Laboratory. Stable isotope values of nitrogen were determined using an on-line
carbon-nitrogen analyzer coupled with an isotope ratio mass spectrometer
(FinniganConFlo II/Delta-Plus). Isotope values are reported in conventional
delta-notation relative to the international standards atmospheric N2 and
V-PDB, for N and C, respectively. Mean accuracy of all stable isotopic
analyses was < +/-\u00a00.1 \u2030 (1 sd) based on triplicate analysis of in-
house reference materials (glycine standard and tuna muscle) with known
\u03b415N values.
attribute NC_GLOBAL awards_0_award_nid String 616068
attribute NC_GLOBAL awards_0_award_number String OCE-1040810
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1040810 (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 David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Bulk Raw Isotopes From Non-Tuna Species
PIs: Robert J. Olson (Inter-American Tropical Tuna Commission) & Brian N. Popp (University of Hawaii)
Co-PI: Jeffrey C. Drazen (University of Hawaii)
Version: 18 January 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 2017-01-18T19:38:04Z
attribute NC_GLOBAL date_modified String 2020-01-21T21:35:45Z
attribute NC_GLOBAL defaultDataQuery String &amp;time&lt;now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.675211.1
attribute NC_GLOBAL Easternmost_Easting double -80.83
attribute NC_GLOBAL geospatial_lat_max double 11.57
attribute NC_GLOBAL geospatial_lat_min double -1.9
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -80.83
attribute NC_GLOBAL geospatial_lon_min double -140.72
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/675211 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Bongo Net
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Zooplankton samples were collected with a cylindrical-conical bongo net (333 um mesh), fished to 200 m approximately two hours after sunset, and the samples were frozen within one hour of collection
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 675270
attribute NC_GLOBAL instruments_0_description String A Bongo Net consists of paired plankton nets, typically with a 60 cm diameter mouth opening and varying mesh sizes, 10 to 1000 micron. The Bongo Frame was designed by the National Marine Fisheries Service for use in the MARMAP program. It consists of two cylindrical collars connected with a yoke so that replicate samples are collected at the same time. Variations in models are designed for either vertical hauls (OI-2500 = NMFS Pairovet-Style, MARMAP Bongo, CalVET) or both oblique and vertical hauls (Aquatic Research). The OI-1200 has an opening and closing mechanism that allows discrete "known-depth" sampling. This model is large enough to filter water at the rate of 47.5 m3/minute when towing at a speed of two knots. More information: Ocean Instruments, Aquatic Research, Sea-Gear
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/NETT0009/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Bongo Net
attribute NC_GLOBAL instruments_0_instrument_nid String 410
attribute NC_GLOBAL instruments_0_supplied_name String cylindrical-conical bongo net
attribute NC_GLOBAL instruments_1_acronym String IR Mass Spec
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Stable isotope values of nitrogen were determined using an on-line carbon-nitrogen analyzer coupled with an isotope ratio mass spectrometer (FinniganConFlo II/Delta-Plus).
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 675269
attribute NC_GLOBAL instruments_1_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_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_1_instrument_nid String 469
attribute NC_GLOBAL instruments_1_supplied_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Stable isotope values of nitrogen were determined using an on-line carbon-nitrogen analyzer coupled with an isotope ratio mass spectrometer (FinniganConFlo II/Delta-Plus).
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 675268
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/ (external link)
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 Carbon-Nitrogen Analyzer
attribute NC_GLOBAL instruments_3_acronym String Hand Net
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Specimens of mesopelagic myctophid fishes�Myctophum nitidulum�(Mn) and�Symbolophorus reversus�(Sr) were collected by dipnet at night.
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 682470
attribute NC_GLOBAL instruments_3_description String A hand net (also called a scoop net or dip net) is a net or mesh basket held open by a hoop. They are used for scooping fish near the surface of the water.
attribute NC_GLOBAL instruments_3_instrument_name String Hand Net
attribute NC_GLOBAL instruments_3_instrument_nid String 682469
attribute NC_GLOBAL instruments_3_supplied_name String dipnet
attribute NC_GLOBAL instruments_4_acronym String Handline and Jig
attribute NC_GLOBAL instruments_4_dataset_instrument_description String Specimens of the squids Dosidicus gigas (Dg) and Sthenoteuthis oualaniensis (So) were collected at night, using handlines and jigs.
attribute NC_GLOBAL instruments_4_dataset_instrument_nid String 682474
attribute NC_GLOBAL instruments_4_description String Handline fishing, or handlining, is a fishing technique where a single fishing line is held in the hands. A handline is a relatively large diameter line that can be pulled by hand, and it has a jig attached at the end. Handlines are frequently used for catching fish or squid that are schooling near the surface, thus a long haul by hand is not necessary.
attribute NC_GLOBAL instruments_4_instrument_name String Handline and Jig
attribute NC_GLOBAL instruments_4_instrument_nid String 682472
attribute NC_GLOBAL instruments_4_supplied_name String handlines and jigs
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, cruise, cruise_id, d13, d13C, d15, d15N, data, dataset, date, dmo, erddap, latitude, length, longitude, management, molar, Molar_C_to_N, number, oceanography, office, preliminary, replicate, replicate_number, sample, sample_number, species, time
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/675211/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/675211 (external link)
attribute NC_GLOBAL Northernmost_Northing double 11.57
attribute NC_GLOBAL param_mapping String {'675211': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/675211/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Inter-American Tropical Tuna Commission
attribute NC_GLOBAL people_0_affiliation_acronym String IATTC
attribute NC_GLOBAL people_0_person_name String Robert Olson
attribute NC_GLOBAL people_0_person_nid String 50553
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 University of Hawaii
attribute NC_GLOBAL people_1_person_name String Brian N. Popp
attribute NC_GLOBAL people_1_person_nid String 51093
attribute NC_GLOBAL people_1_role String Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String University of Hawaii
attribute NC_GLOBAL people_2_person_name String Jeffrey C. Drazen
attribute NC_GLOBAL people_2_person_nid String 491313
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 Inter-American Tropical Tuna Commission
attribute NC_GLOBAL people_3_affiliation_acronym String IATTC
attribute NC_GLOBAL people_3_person_name String Robert Olson
attribute NC_GLOBAL people_3_person_nid String 50553
attribute NC_GLOBAL people_3_role String Contact
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Shannon Rauch
attribute NC_GLOBAL people_4_person_nid String 51498
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String CAMEO_Trophic_Position
attribute NC_GLOBAL projects_0_acronym String CAMEO_Trophic_Position
attribute NC_GLOBAL projects_0_description String (From NSF Award Abstract)
Evidence increasingly demonstrates that selective removal of marine life can induce restructuring of marine food webs. Trophic structure is the central component of mass balance models, widely used tools to evaluate fisheries in an ecosystem context. Food web structure is commonly determined by stomach contents or by bulk tissue stable isotope analyses, both of which are limited in terms of resolution and versatility. The investigators will refine a tool, Amino Acid Compound-Specific Isotopic Analyses (AA-CSIA), which can be broadly applicable for quantifying the time-integrated trophic position (TP) of consumers. Differences in source and trophic nitrogen isotopic composition for specific amino acids will provide an unambiguous and integrated measure of fractional trophic TP across multiple phyla, regardless of an animal's physiological condition or of the biogeochemical cycling at the base of the food web. AA-CSIA will allow testing of the efficacy of trophic position estimates derived from ecosystem-based models and promote the evolution of these models into decision-support tools.
This project has three goals: 1. To validate the application of AA-CSIA across multiple marine phyla under differing physiological conditions. 2. To compare the application of AA-CSIA across systems with contrasting biogeochemical cycling regimes. 3. To develop the use of AA-CSIA TP estimates for validating trophic models of exploited ecosystems. The investigators will test and refine the approach using a combination of laboratory feeding experiments and field studies across regions with differing biogeochemical cycling regimes. They will determine the applicability of the AA-CSIA approach in a variety of marine organisms assessed in controlled studies. Subsequently, ecosystem components will be sampled from the eastern tropical Pacific, coastal California and the subtropical Pacific gyre. They will also test the effects of sample preservation on the isotopic composition of individual AA to determine whether the approach can be used on archived samples. This tool will allow testing of the efficacy of ecosystem-based models currently used to gain insight into the ecological effects of fisheries removals and improve the reliability of future models required to manage marine resources. In addition to the goal of developing AA-CSIA for use as a TP indicator, the information obtained through this project will provide important species-specific biological data on the feeding behavior of marine organisms that could have implications for their resilience to anthropogenic pressures and climate change.
attribute NC_GLOBAL projects_0_end_date String 2014-07
attribute NC_GLOBAL projects_0_geolocation String Subtropical North Pacific Ocean
attribute NC_GLOBAL projects_0_name String CAMEO 2009 - A novel tool for validating trophic position estimates in ecosystem-based fisheries models
attribute NC_GLOBAL projects_0_project_nid String 491309
attribute NC_GLOBAL projects_0_project_website String http://cameo.noaa.gov/pres_bpopp.html (external link)
attribute NC_GLOBAL projects_0_start_date String 2010-08
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 -1.9
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Bulk raw isotopic data from tissue samples from two species of ommastrephid cephalopods (squids), two species of mesopelagic myctophid fishes, and two species of euphausiid crustaceans collected in the eastern tropical Pacific Ocean onboard two NOAA research ships.
attribute NC_GLOBAL title String Bulk raw isotopic data from tissue samples from non-tuna species collected in the eastern tropical Pacific Ocean onboard two NOAA research ships, David Starr Jordan and McArthur II, (cruises SWFSC1630 and SWFSC1631) in 2006
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -140.72
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable species   String  
attribute species bcodmo_name String species
attribute species description String name of the species
attribute species long_name String Species
attribute species units String unitless
variable sample_number   String  
attribute sample_number bcodmo_name String sample
attribute sample_number description String sample identification number; 2 letter codes representing genus/species names (see "Species column") followed by sequential numbers 1-13
attribute sample_number long_name String Sample Number
attribute sample_number nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute sample_number units String unitless
variable cruise_id   String  
attribute cruise_id bcodmo_name String cruise_id
attribute cruise_id description String deployment number; Prefix "SWFSC" (Southwest Fisheries Science Center), followed by 4 digit cruise number (Deployment number): 1630 = R/V David Starr Jordan, 1631 = R/V McArthur II.
attribute cruise_id long_name String Cruise Id
attribute cruise_id units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -1.9, 11.57
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 of sample location; decimal degrees with S latitude as negative numbers
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -140.72, -80.83
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 of sample location; decimal degrees with W longitude as negative number
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable date   String  
attribute date bcodmo_name String date
attribute date description String date on which specimens were captured and sampled formatted as yyyy-mm-dd
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date source_name String date
attribute date time_precision String 1970-01-01
attribute date units String unitless
variable length   short  
attribute length _FillValue short 32767
attribute length actual_range short 39, 225
attribute length bcodmo_name String length
attribute length description String fork-length of specimens in millimeters; nd=no data
attribute length long_name String Length
attribute length units String millimeters (mm)
variable replicate_number   byte  
attribute replicate_number _FillValue byte 127
attribute replicate_number actual_range byte 1, 3
attribute replicate_number bcodmo_name String unknown
attribute replicate_number colorBarMaximum double 100.0
attribute replicate_number colorBarMinimum double 0.0
attribute replicate_number description String replicate number (1-3) for net hauls from which replicate samples were taken
attribute replicate_number long_name String Replicate Number
attribute replicate_number units String unitless
variable d15N   float  
attribute d15N _FillValue float NaN
attribute d15N actual_range float 4.8, 15.8
attribute d15N bcodmo_name String d15N_bio
attribute d15N description String delta 15 N. Isotope values are reported in conventional d-notation relative to the international standard atmospheric N2.
attribute d15N long_name String D15 N
attribute d15N nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/IRBO/ (external link)
attribute d15N units String parts per thousand (per mil, ‰)
variable d13C   float  
attribute d13C _FillValue float NaN
attribute d13C actual_range float -22.5, -16.5
attribute d13C bcodmo_name String d13C
attribute d13C description String delta 13 C. Isotope values are reported in conventional d-notation relative to the international standard V-PDB.
attribute d13C long_name String D13 C
attribute d13C units String parts per thousand (per mil, ‰)
variable Molar_C_to_N   float  
attribute Molar_C_to_N _FillValue float NaN
attribute Molar_C_to_N actual_range float 3.71, 8.05
attribute Molar_C_to_N bcodmo_name String C_to_N
attribute Molar_C_to_N description String Molar carbon to nitrogen ratio
attribute Molar_C_to_N long_name String Molar C To N
attribute Molar_C_to_N units String dimensionless (ratio)

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


 
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