ERDDAP > info > bcodmo_dataset_675055

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	[Bulk Raw Isotopes - Tunas] - Bulk raw isotopic data from tissue samples from three species of tunas collected in the eastern tropical Pacific Ocean onboard commercial tuna purse-seine vessels from 2003-2005 (CAMEO 2009 - A novel tool for validating trophic position estimates in ecosystem-based fisheries models)		F   I   M	background			BCO-DMO	bcodmo_dataset_675055

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: Three species of tuna, yellowfin (Ta.; Thunnus albacares), skipjack (Kp.; Katsuwonus pelamis), and bigeye (To.; Thunnus obesus) tunas, were sampled year-round during 2003-2005 by observers of the Inter-American Tropical Tuna Commission onboard purse-seine fishing vessels. Samples of dorsal white muscle were taken from each fish adjacent to the second dorsal fin. Fish of uniform size were used for analysis: skipjack tuna 450-550 mm, yellowfin tuna 500-700 mm, and bigeye tuna 450-550 mm. All samples were stored frozen until further processing in the laboratory. Analytical Methodology: Methods are described in Hetherington et al. (2016). Briefly: Isotopic analysis of bulk muscle tissue of the tunas 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
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 Three 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: 17 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/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2017-01-17T20:26:25Z
attribute	NC_GLOBAL	date_modified	String	2020-01-21T21:37:39Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.675055.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-92.57
attribute	NC_GLOBAL	geospatial_lat_max	double	8.9
attribute	NC_GLOBAL	geospatial_lat_min	double	-4.18
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-92.57
attribute	NC_GLOBAL	geospatial_lon_min	double	-139.82
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/675055
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	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_0_dataset_instrument_nid	String	675177
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	Isotope-ratio Mass Spectrometer
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	675176
attribute	NC_GLOBAL	instruments_1_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_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB01/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Elemental Analyzer
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	546339
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Carbon-Nitrogen Analyzer
attribute	NC_GLOBAL	instruments_2_acronym	String	Purse-seine
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Three species of tuna were collected using purse-seine gear from commercial fishing vessels.
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	675175
attribute	NC_GLOBAL	instruments_2_description	String	A purse seine is a large wall of netting deployed in a circle around an entire school of fish. The seine has floats along the top line with a lead line of chain along the bottom. Once a school of fish is located, a skiff pulls the seine into the water as the vessel encircles the school with the net. A cable running along the bottom is then pulled in, "pursing" the net closed on the bottom, preventing fish from escaping by swimming downward. The catch is harvested by bringing the net alongside the vessel and brailing the fish aboard.
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Purse-seine Fishing Gear
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	675173
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Purse-seine Fishing Gear
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, d13, d13C, d15, d15N, data, dataset, date, dmo, erddap, latitude, length, longitude, management, molar, Molar_C_to_N, number, oceanography, office, preliminary, replicate, sample, sample_number, set, set_number, sex, species, time
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/675055/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/675055
attribute	NC_GLOBAL	Northernmost_Northing	double	8.9
attribute	NC_GLOBAL	param_mapping	String	{'675055': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/675055/parameters
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
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	-4.18
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 three species of tunas collected in the eastern tropical Pacific Ocean onboard commercial tuna purse-seine vessels.
attribute	NC_GLOBAL	title	String	[Bulk Raw Isotopes - Tunas] - Bulk raw isotopic data from tissue samples from three species of tunas collected in the eastern tropical Pacific Ocean onboard commercial tuna purse-seine vessels from 2003-2005 (CAMEO 2009 - A novel tool for validating trophic position estimates in ecosystem-based fisheries models)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-139.82
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	alphanumeric sample identification number; 2 letter codes representing genus/species names (see species column) followed by sequential numbers 1-15.
attribute	sample_number	long_name	String	Sample Number
attribute	sample_number	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/ACYC/
attribute	sample_number	units	String	unitless
variable	set_number		short
attribute	set_number	_FillValue	short	32767
attribute	set_number	actual_range	short	10, 178
attribute	set_number	bcodmo_name	String	unknown
attribute	set_number	colorBarMaximum	double	100.0
attribute	set_number	colorBarMinimum	double	0.0
attribute	set_number	description	String	arbitrary set number (purse-seine sets that caught tunas). Note: IATTC confidentiality rules prohibit divulging the fishing activities of individual vessels.
attribute	set_number	long_name	String	Set Number
attribute	set_number	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	-4.18, 8.9
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 catch 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/
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	-139.82, -92.57
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 catch 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/
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 tuna 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/
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	423, 670
attribute	length	bcodmo_name	String	length
attribute	length	description	String	fork-length of tuna in millimeters
attribute	length	long_name	String	Length
attribute	length	units	String	millimeters (mm)
variable	sex		byte
attribute	sex	_FillValue	byte	127
attribute	sex	actual_range	byte	1, 3
attribute	sex	bcodmo_name	String	sex
attribute	sex	description	String	sex of the tuna. 1=male, 2=female, 3=undetermined.
attribute	sex	long_name	String	Sex
attribute	sex	units	String	numeric (1 to 3)
variable	replicate		byte
attribute	replicate	_FillValue	byte	127
attribute	replicate	actual_range	byte	1, 3
attribute	replicate	bcodmo_name	String	replicate
attribute	replicate	description	String	replicate number for sets from which replicate samples (up to 3 individuals) were taken
attribute	replicate	long_name	String	Replicate
attribute	replicate	units	String	unitless
variable	d15N		float
attribute	d15N	_FillValue	float	NaN
attribute	d15N	actual_range	float	8.1, 14.6
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/
attribute	d15N	units	String	parts per thousand (per mil, ‰)
variable	d13C		float
attribute	d13C	_FillValue	float	NaN
attribute	d13C	actual_range	float	-16.7, -15.2
attribute	d13C	bcodmo_name	String	d13C_bio
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	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/IRBO/
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	3.53, 3.89
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.