KAxis Zooplankton isotopes - data collected from the K-Axis voyage of the Aurora Australis, 2016

No problems with data collection or analysis. Krill, salps and pteropods were collected with an RMT8 net during the K-Axis cruise. Specimens were removed from the samples, measured and frozen at -20C until ready for analysis in Hobart. Individuals of known species were dried at -60C, ground to a fin...

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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
STABLE ISOTOPES
EARTH SCIENCE
OCEAN CHEMISTRY
CARBON
NITROGEN
ZOOPLANKTON
BIOSPHERE
AQUATIC ECOSYSTEMS
PLANKTON
EUPHAUSIIDS (KRILL)
BIOLOGICAL CLASSIFICATION
ANIMALS/INVERTEBRATES
ARTHROPODS
CRUSTACEANS
SALPS
TUNICATES
K-AXIS
PTEROPODS
KERGUELEN-AXIS
ICP-MS &gt
Inductively Coupled Plasma Mass Spectrometer
R/V AA &gt
R/V Aurora Australis
ACE/CRC
AMD/AU
CEOS
AMD
GEOGRAPHIC REGION &gt
POLAR
OCEAN &gt
SOUTHERN OCEAN &gt
KERGUELEN PLATEAU
CONTINENT &gt
ANTARCTICA
Kerguelen
Southern Ocean
Antarc*
Antarctica
aurora australis
Euphausia superba
Thysanoessa macrura
Online Access:https://researchdata.ands.org.au/kaxis-zooplankton-isotopes-australis-2016/1324969
https://data.aad.gov.au/metadata/records/AAS_4331_Zooplankton_isotopes
https://data.aad.gov.au/eds/4594/download
https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4331_Zooplankton_isotopes
https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS_4331
Description
Summary:No problems with data collection or analysis. Krill, salps and pteropods were collected with an RMT8 net during the K-Axis cruise. Specimens were removed from the samples, measured and frozen at -20C until ready for analysis in Hobart. Individuals of known species were dried at -60C, ground to a fine powder, encapsulated into tin cups and analysed with an ICP-MS in the Central Science Laboratories, University of Tasmania. Samples were analysed for delta15N and delta13C. The salp was the common Southern Ocean species Salpa thompsoni and the krill were Euphausia superba, E. triacantha, E. frigida and Thysanoessa macrura. A small number (2) of the siphonphore Diphyes antarctica were also analysed. Pteropods analysed included both shelled (thecosomes) and naked (gymnosomes) pteropods. Columns E-O in the Pteropods worksheet in the spreadsheet are expressed as ratios. The stable isotope analysis of zooplankton was performed as part of the studies designed to understand trophic interactions in the planktonic food web over the Kerguelen Plateau. In particular, we wished to understand (i) the trophic positions of key krill species and how they interacted with Salpa thompsoni and (ii) the roles of naked and shelled pteropods in the food web.

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