Dataset: Zooplankton bulk isotopes
Deployment: TAN1810

View Data: For data, See Dataset Metadata Page: https://www.bco-dmo.org/dataset/908460

Principal Investigator:

Michael R. Stukel (Florida State University, FSU)

Scientist:

Moira Decima (New Zealand National Institute of Water and Atmospheric Research, NIWA)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Collaborative Research: Quantifying trophic roles and food web ecology of salp blooms of the Chatham Rise (Salp Food Web Ecology)

Version:

Deployment Synonyms:

SalpPOOP

Expand/Collapse All

Description

Methods & Sampling

Dataset acquisition description

We conducted double oblique zooplankton net tows from 200 m water depth to the sea-surface using a 0.7 m-diameter Bongo frame with paired 200-µm mesh nets, equipped with two General Oceanics flow meters to measure the filtered volume and a temperature-depth recorder. A fraction of each tow was size-fractionated through nested sieves (4-mm, 2-mm, 1-mm, 0.5-mm, 0.2-mm), rinsed with isotonic ammonium formate, and stored for isotopic analyses. Samples were then dried, fumed with HCl (to remove calcium carbonate), packed in pre-combusted tins and analyzed for stable isotopes by isotope ratio mass spectrometer at the U.C. Davis Stable Isotope Facility.

Instruments:
Elementar Vario EL Cube or Micro Cube elemental analyzer (Elementar Analysensysteme GmbH, Hanau, Germany) interfaced to either an Isoprime VisION IRMS (Elementar UK Ltd, Cheadle, UK) or a PDZ Europa 20-20 isotope ratio mass spectrometer (Sercon Ltd., Cheshire, UK)

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1756465	NSF Division of Ocean Sciences
OCE-1756610	NSF Division of Ocean Sciences

Instruments

Bongo Net

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Bongo Net

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/NETT0009/

Generic Description:

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

Elemental Analyzer

Supplied Name: Elementar Vario EL Cube or Micro Cube elemental analyzer (Elementar Analysensysteme GmbH, Hanau, Germany)

Supplied Description:

Elementar Vario EL Cube or Micro Cube elemental analyzer (Elementar Analysensysteme GmbH, Hanau, Germany) interfaced to either an Isoprime VisION IRMS (Elementar UK Ltd, Cheadle, UK) or a PDZ Europa 20-20 isotope ratio mass spectrometer (Sercon Ltd., Cheshire, UK)

Instrument Type

Generic Name: Elemental Analyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/

Generic Description:

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.

Mass Spectrometer

Supplied Name: PDZ Europa 20-20 isotope ratio mass spectrometer (Sercon Ltd., Cheshire, UK)

Supplied Description:

Instrument Type

Generic Name: Mass Spectrometer

Acronym: Mass Spec

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

Generic Description:

General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Bongo_Tow	Cruise Tow Identification Number	unitless	tow
Station	Cruise Station Identification Number	unitless	station
Cycle	Cruise Lagrangian Experiment Number	unitless	sample_descrip
Day	Day of Respective Lagrangian Experiment	Day	time_elapsed
Date	Date (NZST)	unitless	date_local
Time_In	Time of net deployment (NZST)	unitless	time_local
ISO_DateTime_UTC	Net deployment timestamp in ISO 8601 format (UTC time)	unitless	ISO_DateTime_UTC
Size_Fraction	Zooplankton Size Fraction	millimeters (mm)	samp_fraction
d13C	delta 13C	permil relative to PDVB (0/00 relative to PDVB)	d13C
d15N	delta 15N	permil relative to air (0/00 relative to air)	d15N
Latitude	Tow latitude	decimal degrees	lat
Longitude	Tow longitude	decimal degrees	lon

Database

Contribute Data

Dataset: Zooplankton bulk isotopes
Deployment: TAN1810

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Zooplankton bulk isotopesDeployment: TAN1810

Dataset acquisition description

Dataset Processing Description

Dataset: Zooplankton bulk isotopes
Deployment: TAN1810