Data

Absolute abundance of diatoms from CEAMARC cores

Australian Ocean Data Network
Armand, L.K. and Warnock, J.P. ; ARMAND, LEANNE KAY ; WARNOCK, JONATHAN PATRICK
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.aad.gov.au/metadata/records/CEAMARC_Diatom_Absolute_Abundance&rft.title=Absolute abundance of diatoms from CEAMARC cores&rft.identifier=http://data.aad.gov.au/metadata/records/CEAMARC_Diatom_Absolute_Abundance&rft.publisher=Australian Antarctic Data Centre&rft.description=This data provides the absolute abundance of diatom valves from cores recovered from the George V coast as part of the CEAMARC (Collaborative East Antarctic Marine Census) mission of 2007-2008. Data are presented as valves/gram dry weight of sediment. All samples analyzed were core top samples, however no age constraints have been established. Chaetoceros resting spores were included in the absolute abundance calculations. Slides were prepared following Rathburn et al 1997.Progress Code: completedStatement: No problems to report with regards to the dataset or data collection. Standard methods were used (Rathburn et al. 1997). All slides were counted on the same microscope by a single analyst. The site codes are the names given to the individual coring sites by the CEAMARC mission. See other CEAMARC records for more information (particularly the Events metadata record).&rft.creator=Armand, L.K. and Warnock, J.P. &rft.creator=ARMAND, LEANNE KAY &rft.creator=WARNOCK, JONATHAN PATRICK &rft.date=2017&rft.coverage=westlimit=139; southlimit=-67.5; eastlimit=146; northlimit=-65&rft.coverage=westlimit=139; southlimit=-67.5; eastlimit=146; northlimit=-65&rft.coverage=uplimit=1450; downlimit=168&rft.coverage=uplimit=1450; downlimit=168&rft_rights=This metadata record is publicly available.&rft_rights=These data are publicly available for download from the provided URL.&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=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=CEAMARC_Diatom_Absolute_Abundance when using these data. http://creativecommons.org/licenses/by/4.0/).&rft_rights=Portable Network Graphic&rft_rights=https://i.creativecommons.org/l/by/3.0/88x31.png&rft_rights=Creative Commons by Attribution logo&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights=Legal code for Creative Commons by Attribution 4.0 International license&rft_rights=Attribution 4.0 International (CC BY 4.0)&rft_rights= https://creativecommons.org/licenses/by/4.0/legalcode&rft_subject=biota&rft_subject=oceans&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS&rft_subject=EARTH SCIENCE > OCEANS > MARINE SEDIMENTS&rft_subject=EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT COMPOSITION&rft_subject=CEAMARC&rft_subject=CAML&rft_subject=Diatoms&rft_subject=Sediment&rft_subject=LIGHT MICROSCOPE&rft_subject=R/V AA > R/V Aurora Australis&rft_subject=CAML > CENSUS OF ANTARCTIC MARINE LIFE&rft_subject=AMD/AU&rft_subject=AMD&rft_subject=CEOS&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=OCEAN > SOUTHERN OCEAN > GEORGE V COAST&rft_subject=OCEAN > SOUTHERN OCEAN > GEORGE V BASIN&rft_subject=OCEAN > SOUTHERN OCEAN > MERTZ GLACIER POLYNYA&rft.type=dataset&rft.language=English Access the data
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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=CEAMARC_Diatom_Absolute_Abundance when using these data.
http://creativecommons.org/licenses/by/4.0/).

Attribution 4.0 International (CC BY 4.0)

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This metadata record is publicly available.

These data are publicly available for download from the provided URL.

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Brief description

This data provides the absolute abundance of diatom valves from cores recovered from the George V coast as part of the CEAMARC (Collaborative East Antarctic Marine Census) mission of 2007-2008. Data are presented as valves/gram dry weight of sediment. All samples analyzed were core top samples, however no age constraints have been established. Chaetoceros resting spores were included in the absolute abundance calculations. Slides were prepared following Rathburn et al 1997.

Lineage

Progress Code: completed
Statement: No problems to report with regards to the dataset or data collection. Standard methods were used (Rathburn et al. 1997). All slides were counted on the same microscope by a single analyst. The site codes are the names given to the individual coring sites by the CEAMARC mission. See other CEAMARC records for more information (particularly the "Events" metadata record).

Notes

Purpose
These data were generated in order to assess flux of diatom valves to the sea floor across a sea ice dominated ecosystem. The data cover the sea ice, polynya and open ocean habitats. The data can also be used to evaluate the influence of currents on sediment deposition patterns. Absolute diatom abundance is often used as a proxy of primary productivity.

Data time period: 2012-06-01 to 2012-07-31

This dataset is part of a larger collection

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146,-65 146,-67.5 139,-67.5 139,-65 146,-65

142.5,-66.25

text: westlimit=139; southlimit=-67.5; eastlimit=146; northlimit=-65

text: uplimit=1450; downlimit=168

Subjects
AMD | AMD/AU | CAML | CAML > CENSUS OF ANTARCTIC MARINE LIFE | CEAMARC | CEOS | Diatoms | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS | EARTH SCIENCE > OCEANS > MARINE SEDIMENTS | EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT COMPOSITION | GEOGRAPHIC REGION > POLAR | LIGHT MICROSCOPE | OCEAN > SOUTHERN OCEAN > GEORGE V BASIN | OCEAN > SOUTHERN OCEAN > GEORGE V COAST | OCEAN > SOUTHERN OCEAN > MERTZ GLACIER POLYNYA | R/V AA > R/V Aurora Australis | Sediment | biota | oceans |

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Identifiers
  • global : CEAMARC_Diatom_Absolute_Abundance
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