Data

Phytoplankton and hydrological succession in Omega and Taynaya Bays, eastern Antarctica

Australian Antarctic Division
McMinn, A. ; MCMINN, ANDREW
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
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/ASAC_2146&rft.title=Phytoplankton and hydrological succession in Omega and Taynaya Bays, eastern Antarctica&rft.identifier=http://data.aad.gov.au/metadata/ASAC_2146&rft.publisher=Australian Antarctic Data Centre&rft.description=Metadata record for data from ASAC Project 2146See the link below for public details on this project.From the abstracts of the referenced papers:Early season phytoplankton communities in both Omega and Taynaya Bays are characterised by diatoms sedimenting out of the overlying sea ice. Initial nitrate, phosphate and silicate levels are high and the bay waters are covered with ice and well mixed. In Taynaya Bay the ice cover is retained throughout the season while Omega Bay is free for 6-8 weeks. After ice break out in Omega Bay, the phytoplankton community changes from one dominated by diatoms to one dominated by the phtyoflagellates, Pyramimonas spp., Cryptomonas sp. and Gymnodinium sp. In Taynaya Bay the ice remained and even though phtyoflagellates became more common, diatoms still dominated. These differences in community composition result from differences in light climate, extent of stratification and nutrient levels. Sediment cores from Abel and Platcha Bays, in the Vestfold Hills, east Antarctica, contain evidence for a local late Holocene increase in fast ice extent and a possible ice cap retreat at approximately 1750 yr BP, a similar time to the Chelnock Glaciation. Prior to this time both bays experienced periods of isolation that lead to changes in their diatom flora, C:N ratio, percentage of biogenic silica and total organic carbon. Three new diatom indices are proposed; the fast ice index, based on the proportion of benthic taxa and the snow index, based on the proportion of Berkelaya adeliense and Thalassiosira australis. These indices show strong relationships with the percentage of biogenic silica, total organic carbon and percentage sand. A weak relationship exists between the fast ice index and delta 13 C and no relationship with the C:N ratio.The fields in these datasets are:DateJulian DaySampleVolume filtered (L)Acetone Volume (ml)AbsChlorophyllPhytoplanktonProgress Code: completed&rft.creator=McMinn, A. &rft.creator=MCMINN, ANDREW &rft.date=2000&rft.coverage=westlimit=77.0; southlimit=-68.0; eastlimit=78.0; northlimit=-67.0&rft.coverage=westlimit=77.0; southlimit=-68.0; eastlimit=78.0; northlimit=-67.0&rft_rights= These data are publicly available for download from the provided URL. Copies of some of the referenced papers are available for download to AAD staff only. &rft_rights=Attribution 4.0 International (CC BY 4.0) 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=ASAC_2146 when using these data. &rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=oceans&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS&rft_subject=EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE&rft_subject=EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL&rft_subject=EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > PLANT SUCCESSION&rft_subject=ABS&rft_subject=ACETONE&rft_subject=CHLOROPHYLL&rft_subject=CHLOROPHYLL A&rft_subject=DATE&rft_subject=DIATOMS&rft_subject=JULIAN DAY&rft_subject=NUTRIENTS&rft_subject=PHYTOPLANKTON&rft_subject=PIGMENTS&rft_subject=SALINITY&rft_subject=SAMPLE&rft_subject=SUCCESSION&rft_subject=TEMPERATURE&rft_subject=SEDIMENT CORERS&rft_subject=FIELD INVESTIGATION&rft_subject=FIELD SURVEYS&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=AMD&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=CONTINENT > ANTARCTICA&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode


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

Copies of some of the referenced papers are available for download to AAD staff only.


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=ASAC_2146 when using these data.

This metadata record is publicly available.

Access:

Other

Full description

Metadata record for data from ASAC Project 2146
See the link below for public details on this project.

From the abstracts of the referenced papers:

Early season phytoplankton communities in both Omega and Taynaya Bays are characterised by diatoms sedimenting out of the overlying sea ice. Initial nitrate, phosphate and silicate levels are high and the bay waters are covered with ice and well mixed. In Taynaya Bay the ice cover is retained throughout the season while Omega Bay is free for 6-8 weeks. After ice break out in Omega Bay, the phytoplankton community changes from one dominated by diatoms to one dominated by the phtyoflagellates, Pyramimonas spp., Cryptomonas sp. and Gymnodinium sp. In Taynaya Bay the ice remained and even though phtyoflagellates became more common, diatoms still dominated. These differences in community composition result from differences in light climate, extent of stratification and nutrient levels.

Sediment cores from Abel and Platcha Bays, in the Vestfold Hills, east Antarctica, contain evidence for a local late Holocene increase in fast ice extent and a possible ice cap retreat at approximately 1750 yr BP, a similar time to the Chelnock Glaciation. Prior to this time both bays experienced periods of isolation that lead to changes in their diatom flora, C:N ratio, percentage of biogenic silica and total organic carbon. Three new diatom indices are proposed; the fast ice index, based on the proportion of benthic taxa and the snow index, based on the proportion of Berkelaya adeliense and Thalassiosira australis. These indices show strong relationships with the percentage of biogenic silica, total organic carbon and percentage sand. A weak relationship exists between the fast ice index and delta 13 C and no relationship with the C:N ratio.

The fields in these datasets are:

Date
Julian Day
Sample
Volume filtered (L)
Acetone Volume (ml)
Abs
Chlorophyll
Phytoplankton

Lineage

Progress Code: completed

Data time period: 1997-11-13 to 1998-03-02

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related People

78,-67 78,-68 77,-68 77,-67 78,-67

77.5,-67.5

text: westlimit=77.0; southlimit=-68.0; eastlimit=78.0; northlimit=-67.0

Subjects
ABS | ACETONE | AMD | AMD/AU | CEOS | CHLOROPHYLL | CHLOROPHYLL A | CONTINENT > ANTARCTICA | DATE | DIATOMS | EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > PLANT SUCCESSION | EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > PHYTOPLANKTON | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL | EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE | EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY | FIELD INVESTIGATION | FIELD SURVEYS | GEOGRAPHIC REGION > POLAR | JULIAN DAY | NUTRIENTS | OCEAN > SOUTHERN OCEAN | PHYTOPLANKTON | PIGMENTS | SALINITY | SAMPLE | SEDIMENT CORERS | SUCCESSION | TEMPERATURE | biota | oceans |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Other Information
Download point for the data - excel spreadsheets (GET DATA)

url : http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=1938

Public information for ASAC project 2146 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/search_projects_results.cfm?project_no=2146

Download point for the data - papers (VIEW RELATED INFORMATION > PUBLICATIONS)

url : http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=1937

Citation reference for this metadata record and dataset (VIEW RELATED INFORMATION)

url : http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2146

Identifiers
  • global : ASAC_2146
ACN 633 798 857