Dataset: Ruiz-Cooly 2014 - sperm whale skin bulk C and N

Name: Sperm whale skin bulk C and N isotopes from the California Current System, 1972 to 2005
Published: 2016-08-02
Keywords: biota, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.653047.1

Spatial Extent: N:46.97 E:-117.35 S:32.47 W:-129.82

Temporal Extent: 1972-12 - 2005-07

Project:

A novel approach for evaluating temporal and spatial changes in trophic structure of the mesopelagic eastern Pacific (Sperm Whale SI Ratios)

Principal Investigator:

Paul L. Koch (University of California-Santa Cruz, UCSC)

Co-Principal Investigator:

Matthew D. McCarthy (University of California-Santa Cruz, UCSC)

Student:

Rocio I. Ruiz-Cooley (University of California-Santa Cruz, UCSC)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2016-08-02

Restricted:

Validated:

Current State:

Final no updates expected

Sperm whale skin bulk C and N isotopes from the California Current System, 1972 to 2005

Abstract:

This dataset includes sperm whale skin bulk C and N isotopes. A total of 18 skin samples were analyzed. The sperm whale skin tissue came from the California Current System, 1972 to 2005.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2016-08-02	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.653047.1	2021-04-12

Methods & Sampling

Materials and methods for analysis are described in detail in the Ruiz_Cooly et al (2014). Bulk isotope values were analyzed by continuous flow isotope ratio mass spectrometry (IRMS; Thermo Finnigan) and standardized relative to Vienna-Pee Belemnite (V-PDB) for carbon and atmospheric N2 for nitrogen. Results are expressed in part per thousand (‰) and standard notation: dHX= [(Rsample/Rstandard)] x 1000, where H is the mass number of the heavy isotope, X is either C or N, and Rsample and Rstandard are the ratio of 13C/12C or 15N/14N in the sample and standard, respectively.

Data Processing Description

Regression analyses were conducted to evaluate linear relationship between time and each isotopic tracer.

BCO-DMO Processing:
- added conventional header with dataset name, PI name, version date, reference information
- renamed parameters to BCO-DMO standard

Data Files

File
skin_bulk.csv (Comma Separated Values (.csv), 852 bytes) MD5:39cca7b13add7d133031788a89288aed Primary data file for dataset ID 653047

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1155728

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
lab_UCSC_Koch		2012-03-01	UCSC		data info

Instruments

Isotope-ratio Mass Spectrometer

Supplied Name:

Supplied Description:

Thermo Finnigan DeltaPlus XP isotope ratio mass spectrometer (Thermo Scientific, Bremen, Germany)

Instrument Type

Generic Name: Isotope-ratio Mass Spectrometer

Acronym: IR Mass Spec; IRMS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/

Generic Description:

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).

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
SWFSC_id	identification number assigned to sample at Southwest Fisheries Science Center	unitless	sample
UCSC_id	identification number assigned to sample at UC Santa Cruz	unitless	sample
date_collected	date sample was collected; format: yyyy-mm	year; month	date
lat	latitude; north is positive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
d13C	delta 13 C. Isotope values are reported in conventional d-notation relative to the international standard V-PDB.	parts per thousand	d13C_bio
d15N	delta 15 N. Isotope values are reported in conventional d-notation relative to the international standard atmospheric N2.	parts per thousand	d15N_bio

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Database

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Dataset: Ruiz-Cooly 2014 - sperm whale skin bulk C and N