From Australian Oceans Data Network
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Nitrogen and carbon isotopes of particulate organic matter during the K-Axis voyage of the Aurora Australis, 2016

Created 23/06/2025

Updated 23/06/2025

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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.

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Field Value
Title Nitrogen and carbon isotopes of particulate organic matter during the K-Axis voyage of the Aurora Australis, 2016
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/63b0b881-446e-432a-b5ad-13f4ac538a73
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 19/01/2016 - 19/02/2016
Geospatial Coverage
Map data © OpenStreetMap contributors
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Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Nitrogen and carbon isotopes of particulate organic matter during the K-Axis voyage of the Aurora Australis, 2016". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/nitrogen-and-carbon-isotopes-of-particulate-organic-matter-during-the-k-axis-voyage-of-the-2016