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

Sperm whale skin bulk C and N isotopes

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/653047

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)

Project:

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

Current State:

Preliminary and in progress

Version:

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Description

Methods & Sampling

Dataset acquisition description

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

Dataset 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

More information about this dataset deployment

Funding

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

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

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

Database

Contribute Data

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

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

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

Dataset acquisition description

Dataset Processing Description

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