Data

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

Australian Ocean Data Network
Swadling, K. ; SWADLING, KERRIE
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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4331_Zooplankton_isotopes when using these data.
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The data are publicly available for download from the provided URL.

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Brief description

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.

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Progress Code: completed
Statement: No problems with data collection or analysis.

Notes

Purpose
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.

Data time period: 2016-01-19 to 2016-02-19

This dataset is part of a larger collection

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93.5686,-58.65144 93.5686,-66.80276 62.89421,-66.80276 62.89421,-58.65144 93.5686,-58.65144

78.2314023,-62.727096

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text: uplimit=0; downlimit=0

text: uplimit=200; downlimit=0

Subjects
ACE/CRC | AMD | AMD/AU | CEOS | CONTINENT > ANTARCTICA | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL) | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > TUNICATES > SALPS | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > STABLE ISOTOPES | GEOGRAPHIC REGION > POLAR | ICP-MS > Inductively Coupled Plasma Mass Spectrometer | K-AXIS | KERGUELEN-AXIS | OCEAN > SOUTHERN OCEAN > KERGUELEN PLATEAU | PTEROPODS | R/V AA > R/V Aurora Australis | biota | oceans |

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uri : https://data.aad.gov.au/eds/4594/download

Identifiers
  • global : AAS_4331_Zooplankton_isotopes
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