Data

Sea Ice Main Biology Sampling collected during the SIPEX II voyage of the Aurora Australis, 2012

Australian Antarctic Division
Meiners, K., Westwood, K., van den Enden, D. and Ugalde, S. ; MEINERS, KLAUS ; WESTWOOD, KAREN JILLIAN ; VAN DEN ENDEN, DERRICK ; UGALDE, SARAH
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=info:doi10.4225/15/59b0a11d7f329&rft.title=Sea Ice Main Biology Sampling collected during the SIPEX II voyage of the Aurora Australis, 2012&rft.identifier=10.4225/15/59b0a11d7f329&rft.publisher=Australian Antarctic Data Centre&rft.description=Five (out of a possible 7) ice stations were sampled for the Main Biology Site, collected from -63.88S 119.9E off East Antarctic in September to November 2012 during the Sea Ice Physics and Ecosystems eXperiment (SIPEX) II. Sampled pack ice floes were several 100 meters to several kilometres apart, and indicated variation in the degrees of physical deformation and biological characteristics. The sampled sites were selected on each floe due to low snow cover disturbances, were level, and free from surface deformations (limited rafting).For the production and carbon allocation dataset, the bottom 2 cm of 3 x 5 - 8 (dependant on level of biomass) cores were collected and combined within a 4 m grid using a 9 cm diameter SIPRE corer. Biology was isolated from the ice by gently mixing with 0.22 micron filtered sea water collected from the site with a Niskin bottle, and pass through a sieve. The liquid was then analysed for bacterial and algae productivity. The corresponding dataset (P:\Data\ Copy of SIPEX C14_Ugalde_Raw Data_St 8) describes data (expressed in disintegrations per minute) directly input into an excel file from the scintillation counter measured on board the Aurora Australis. The additional dataset (P:\Data\ SIPEX C14_Chloro_SIPEXII_Updated to Station 8) describes data directly input into an excel file of volume filtered for chlorophyll analysis (expressed in mls) of both the ice and liquid fraction. For the Main Biology dataset, 6 cores were taken from the same site:Core 1: temperature profileCore 2: nutrients, extracellular polymeric substancesCore 3 and 4: chlorophyll, pigments (HPLC), bacteria and cell countsCore 5: particulate organic carbon/nitrogen, dissolved organic carbonEach core was sectioned from the ice-water interface at 0 - 2 cm, 2 - 10 cm, and then the remaining core was quartered. Core 1 was discarded after the temperature profile was taken. Core 3 and 4 were slow-melted in at 6 degrees cold room with 0.22 micron filtered sea water collected from the site as above (200 ml per cm ice). Cores 2 and 5 were slow-melted as above without the addition of filtered sea water. Additional measurements included 5 replicates of snow thickness and freeboard level. After melting, samples were taken/filtered for the parameters above within 12 hours of melting. The corresponding dataset (P:\Data\Data Updated to Station 8\ Main Bio Data Sheet_SIPEX II_Updated to Station 8) describes descriptive and quantitative parameters of the above cores, directly input into a spreadsheet.Progress Code: completedStatement: The dataset has no problems. However, we did experience low biomass at some stations, making some productivity measurements difficult.&rft.creator=Meiners, K., Westwood, K., van den Enden, D. and Ugalde, S. &rft.creator=MEINERS, KLAUS &rft.creator=WESTWOOD, KAREN JILLIAN &rft.creator=VAN DEN ENDEN, DERRICK &rft.creator=UGALDE, SARAH &rft.date=2013&rft.coverage=westlimit=119.9; southlimit=-63.88; eastlimit=119.9; northlimit=-63.88&rft.coverage=westlimit=119.9; southlimit=-63.88; eastlimit=119.9; northlimit=-63.88&rft.coverage=westlimit=120.1128; southlimit=-64.4443; eastlimit=120.1128; northlimit=-64.4443&rft.coverage=westlimit=120.1128; southlimit=-64.4443; eastlimit=120.1128; northlimit=-64.4443&rft.coverage=westlimit=121.0323; southlimit=-64.9519; eastlimit=121.0323; northlimit=-64.9519&rft.coverage=westlimit=121.0323; southlimit=-64.9519; eastlimit=121.0323; northlimit=-64.9519&rft.coverage=westlimit=120.8228; southlimit=-65.131; eastlimit=120.8228; northlimit=-65.131&rft.coverage=westlimit=120.8228; southlimit=-65.131; eastlimit=120.8228; northlimit=-65.131&rft.coverage=westlimit=120.22; southlimit=-65.23; eastlimit=120.22; northlimit=-65.23&rft.coverage=westlimit=120.22; southlimit=-65.23; eastlimit=120.22; northlimit=-65.23&rft.coverage=westlimit=120.0175; southlimit=-65.2558; eastlimit=120.0175; northlimit=-65.2558&rft.coverage=westlimit=120.0175; southlimit=-65.2558; eastlimit=120.0175; northlimit=-65.2558&rft.coverage=westlimit=119.0; southlimit=-65.25; eastlimit=119.0; northlimit=-65.25&rft.coverage=westlimit=119.0; southlimit=-65.25; eastlimit=119.0; northlimit=-65.25&rft.coverage=westlimit=116.85; southlimit=-64.87; eastlimit=116.85; northlimit=-64.87&rft.coverage=westlimit=116.85; southlimit=-64.87; eastlimit=116.85; northlimit=-64.87&rft_rights=These data are publicly available for download from the provided URL.&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=SIPEX_II_Phytoplankton when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=oceans&rft_subject=EARTH SCIENCE > CRYOSPHERE > SEA ICE&rft_subject=EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE&rft_subject=EARTH SCIENCE > OCEANS > SEA ICE&rft_subject=EARTH SCIENCE > OCEANS > SEA ICE > ICE TEMPERATURE&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON&rft_subject=EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN&rft_subject=Phytoplankton&rft_subject=SIPEX&rft_subject=R/V AA > R/V Aurora Australis&rft_subject=AMD&rft_subject=AMD/AU&rft_subject=CEOS&rft_subject=ACE/CRC&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=CONTINENT > ANTARCTICA&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data
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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.

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=SIPEX_II_Phytoplankton when using these data.

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Full description

Five (out of a possible 7) ice stations were sampled for the Main Biology Site, collected from -63.88S 119.9E off East Antarctic in September to November 2012 during the Sea Ice Physics and Ecosystems eXperiment (SIPEX) II. Sampled pack ice floes were several 100 meters to several kilometres apart, and indicated variation in the degrees of physical deformation and biological characteristics. The sampled sites were selected on each floe due to low snow cover disturbances, were level, and free from surface deformations (limited rafting).

For the production and carbon allocation dataset, the bottom 2 cm of 3 x 5 - 8 (dependant on level of biomass) cores were collected and combined within a 4 m grid using a 9 cm diameter SIPRE corer. Biology was isolated from the ice by gently mixing with 0.22 micron filtered sea water collected from the site with a Niskin bottle, and pass through a sieve. The liquid was then analysed for bacterial and algae productivity. The corresponding dataset (P:\Data\ Copy of SIPEX C14_Ugalde_Raw Data_St 8) describes data (expressed in disintegrations per minute) directly input into an excel file from the scintillation counter measured on board the Aurora Australis. The additional dataset (P:\Data\ SIPEX C14_Chloro_SIPEXII_Updated to Station 8) describes data directly input into an excel file of volume filtered for chlorophyll analysis (expressed in mls) of both the ice and liquid fraction.

For the Main Biology dataset, 6 cores were taken from the same site:
Core 1: temperature profile
Core 2: nutrients, extracellular polymeric substances
Core 3 and 4: chlorophyll, pigments (HPLC), bacteria and cell counts
Core 5: particulate organic carbon/nitrogen, dissolved organic carbon
Each core was sectioned from the ice-water interface at 0 - 2 cm, 2 - 10 cm, and then the remaining core was quartered. Core 1 was discarded after the temperature profile was taken. Core 3 and 4 were slow-melted in at 6 degrees cold room with 0.22 micron filtered sea water collected from the site as above (200 ml per cm ice). Cores 2 and 5 were slow-melted as above without the addition of filtered sea water. Additional measurements included 5 replicates of snow thickness and freeboard level. After melting, samples were taken/filtered for the parameters above within 12 hours of melting. The corresponding dataset (P:\Data\Data Updated to Station 8\ Main Bio Data Sheet_SIPEX II_Updated to Station 8) describes descriptive and quantitative parameters of the above cores, directly input into a spreadsheet.

Lineage

Progress Code: completed
Statement: The dataset has no problems. However, we did experience low biomass at some stations, making some productivity measurements difficult.

Data time period: 2012-09-26 to 2012-11-10

This dataset is part of a larger collection

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119.9,-63.88

119.9,-63.88

120.1128,-64.4443

120.1128,-64.4443

121.0323,-64.9519

121.0323,-64.9519

120.8228,-65.131

120.8228,-65.131

120.22,-65.23

120.22,-65.23

120.0175,-65.2558

120.0175,-65.2558

119,-65.25

119,-65.25

116.85,-64.87

116.85,-64.87

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text: westlimit=121.0323; southlimit=-64.9519; eastlimit=121.0323; northlimit=-64.9519

text: westlimit=120.8228; southlimit=-65.131; eastlimit=120.8228; northlimit=-65.131

text: westlimit=120.22; southlimit=-65.23; eastlimit=120.22; northlimit=-65.23

text: westlimit=120.0175; southlimit=-65.2558; eastlimit=120.0175; northlimit=-65.2558

text: westlimit=119.0; southlimit=-65.25; eastlimit=119.0; northlimit=-65.25

text: westlimit=116.85; southlimit=-64.87; eastlimit=116.85; northlimit=-64.87

Subjects
ACE/CRC | AMD | AMD/AU | CEOS | CONTINENT > ANTARCTICA | EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA | EARTH SCIENCE > CRYOSPHERE > SEA ICE | EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN | EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON | EARTH SCIENCE > OCEANS > SEA ICE | EARTH SCIENCE > OCEANS > SEA ICE > ICE TEMPERATURE | GEOGRAPHIC REGION > POLAR | OCEAN > SOUTHERN OCEAN | Phytoplankton | R/V AA > R/V Aurora Australis | SIPEX | biota | oceans |

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Other Information
Download point for the data (GET DATA)

url : https://data.aad.gov.au/eds/3509/download

Public information for ASAC project 4073 (PROJECT HOME PAGE)

url : https://projects.aad.gov.au/search_projects_results.cfm?project_no=4073

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

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

Identifiers
ACN 633 798 857