Nitrogen and carbon isotopes of particulate organic matter during the K-Axis voyage of the Aurora Australis, 2016

In some cases, the amount of sample was very small - notes about the quality of each measurement are made on the spreadsheet. Water samples were collected from the seawater line on the Aurora Australis during the K-Axis voyage. They were filtered so that two fractions of each sample were collected:...

Full description

Bibliographic Details
Other Authors: AADC (originator), AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider)
Format: Dataset
Language:unknown
Published: Australian Ocean Data Network
Subjects:
biota
oceans
PHYTOPLANKTON
EARTH SCIENCE
BIOLOGICAL CLASSIFICATION
PROTISTS
PLANKTON
STABLE ISOTOPES
OCEAN CHEMISTRY
CARBON
NITROGEN
K-AXIS
KERGUELEN-AXIS
ICP-MS &gt
Inductively Coupled Plasma Mass Spectrometer
CHNS/O ELEMENTAL ANALYZERS &gt
Hydrogen
Nitrogen Elemental Analyzers
R/V AA &gt
R/V Aurora Australis
ACE/CRC
AMD/AU
AMD
CEOS
GEOGRAPHIC REGION &gt
POLAR
OCEAN &gt
SOUTHERN OCEAN &gt
KERGUELEN PLATEAU
PRINCESS ELIZABETH TROUGH
CONTINENT &gt
ANTARCTICA
Kerguelen
Princess Elizabeth Trough
Southern Ocean
Antarc*
Antarctica
aurora australis
Online Access:https://researchdata.ands.org.au/nitrogen-carbon-isotopes-australis-2016/1324966
https://data.aad.gov.au/metadata/records/AAS_4331_KAxis_POM_isotopes
https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4331_KAxis_POM_isotopes
https://data.aad.gov.au/eds/4593/download
https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4331
Description
Summary:In some cases, the amount of sample was very small - notes about the quality of each measurement are made on the spreadsheet. Water samples were collected from the seawater line on the Aurora Australis during the K-Axis voyage. They were filtered so that two fractions of each sample were collected: a fraction that was between 1.2 and 210 um and a fraction that was between 210 and 1000 um. A 47 mm diameter 1000 um mesh was placed upstream of all samples, and this prevented larger particles (e.g. zooplankton) from entering the samples. The underway water was taken from the pCO2 rig at 1.4 to 1.5 atmospheres. All samples were collected on 25 mm diameter 1.2um Sterlitech silver membrane filters. The greater than 210 samples were collected on mesh and refiltered onto silver filters. The filters were stored frozen until they were processed in Hobart. Subsamples of the filters were analysed at the Central Science Laboratories, University of Tasmania to determine elemental N and C. The remainder of the filters were analysed by ANSTO (NSW) to determine delta15N and delta13C. Volumes are in litres, and the values for the nitrogen isotopes are presented as ratios. The samples were primarily collected to help establish an isotopic baseline for understanding trophic positions of zooplankton and fish. The data (particularly delta 15N) have also been used for interpreting iron dynamics in the water across the Kerguelen Plateau.

Similar Items