Data

Southern Ocean Time Series (SOTS) - Phytoplankton Abundance and Biovolume

Australian Ocean Data Network
Administrator, Marlin (Originator of) CSIRO O&A, Information & Data Centre (Point of contact) Eriksen, Ruth (Processor of) Eriksen, Ruth, Dr (Processor of)
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=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/745a1023-5846-42da-9abf-df666a3b1c56&rft.title=Southern Ocean Time Series (SOTS) - Phytoplankton Abundance and Biovolume&rft.identifier=745a1023-5846-42da-9abf-df666a3b1c56&rft.publisher=Australian Ocean Data Network&rft.description=This dataset comprises the phytoplankton abundance and biovolume estimates as part of a broader sampling program carried out at the Southern Ocean Time Series, a facility within the Integrated Marine Observing System (IMOS). The primary focus is sustained observing of ocean properties and processes important to climate, carbon cycling, and ocean productivity. Regular phytoplankton samples are collected at approximately 14 day intervals (exact intervals and seasonal coverage dependent on deployment length). The moorings are serviced annually, at which time the existing moorings are recovered and new moorings are deployed. Water samples from within the surface mixed-layer are collected at pre-programmed intervals using a Remote Access Sampler, in pairs about 1 hour apart. One sample in each pair is preserved for phytoplankton community composition by microscopy, and the other sample is preserved and used for accompanying chemical analysis of nutrients, total dissolved inorganic carbon (DIC) and alkalinity. Each sample is collected from within the surface mixed-layer at 32 m depth (2010 - 2017) or 5 m depth (2018-current) depending on the design of the mooring surface assembly and instrumentation. Typically a maximum of 24 samples are collected over an annual deployment cycle. The samples collected are analysed for: 1. Community composition / abundance (cells/L) 2. calculated biovolume (um3/L). Protocols for the phytoplankton time-series are described in Eriksen et al (2018), and the annual sample reports for each deployment. Data storage and access is planned to be interoperable with other national and international programs through the IMOS Infrastructure. Station metadata can be found through this resource. Data is available freely via the AODN portal: https://portal.aodn.org.au. As the taxonomic resolution of the data has changed over time, due to continual training, it is important that users refer to the change log tables included in your data download. These will provide information on the validity of the taxa, from what date we have been identifying certain taxa etc. Classification fields may be blank depending on the level to which that taxa has been identified, i.e. if only identified to family, genus and species will be blank.Progress Code: completedMaintenance and Update Frequency: asNeededStatement: Data sampling is being conducted as part of a larger IMOS monitoring program. The phytoplankton samples are returned to CSIRO O&A, Hobart and analysed at the Australian Antarctic Division. Four hundred mL of sample is settled in a 500 mL measuring cylinder for 24 hours. The top ~300mL is siphoned off once settled and the remainder is transferred into a 100ml measuring cylinder and left to settle for a minimum of 24 hours. Once settled the top 85 mL is siphoned off from these samples and the remainder is gently mixed and transferred into an amber glass sample jar. Samples are stored at 4 oC until analysis. This is gently agitated and a 6mL sample is taken and transferred into an Utermohl chamber. The whole sample is scanned at 100x magnification for species composition and consecutive fields of view counted at 320x until 400 cells of the dominant group or species were observed. The maximum used for identification is 640x magnification. These counts are then converted to cells / L and mL / L and the analysis data is exported to AODN: https://portal.aodn.org.au.&rft.creator=Anonymous&rft.date=2013&rft.coverage=westlimit=136; southlimit=-52; eastlimit=146; northlimit=-42&rft.coverage=westlimit=136; southlimit=-52; eastlimit=146; northlimit=-42&rft.coverage=uplimit=-25; downlimit=-100&rft.coverage=uplimit=-25; downlimit=-100&rft_rights=This material is released under the Creative Commons Attribution 4.0 International licence. The citation in a list of references is: IMOS [year-of-data-download], [Title], [data-access-URL], accessed [date-of-access]. Any users of IMOS data are required to clearly acknowledge the source of the material in the format described in the acknowledgements section.&rft_subject=biota&rft_subject=oceans&rft_subject=BACTERIA/ARCHAEA&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=PLANTS&rft_subject=MICROALGAE&rft_subject=PLANTS&rft_subject=PROTISTS&rft_subject=FORAMINIFERS&rft_subject=PROTISTS&rft_subject=AMOEBOIDS&rft_subject=CILIATES&rft_subject=DINOFLAGELLATES&rft_subject=FLAGELLATES&rft_subject=PHYTOPLANKTON&rft_subject=PLANKTON&rft_subject=COASTAL HABITAT&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=PELAGIC HABITAT&rft_subject=DIATOMS&rft_subject=FLAGELLATES&rft_subject=ALKALINITY&rft_subject=OCEANS&rft_subject=OCEAN CHEMISTRY&rft_subject=TURBIDITY&rft_subject=OCEAN OPTICS&rft_subject=INORGANIC CARBON&rft_subject=SECCHI DEPTH&rft_subject=COCCOLITHOPHORES&rft_subject=HAPTOPHYTES&rft_subject=FLUORESCENCE&rft_subject=SALINITY&rft_subject=SALINITY/DENSITY&rft_subject=WATER TEMPERATURE&rft_subject=OCEAN TEMPERATURE&rft_subject=Moored Instruments&rft_subject=Optical Microscopes&rft_subject=Bacteriastrum spp.&rft_subject=Cerataulina spp.&rft_subject=Ceratium fusus&rft_subject=Chaetoceros (Hyalochaete) spp.&rft_subject=Class Acantharia - undifferentiated&rft_subject=Leptocylindrus spp.&rft_subject=Nitzschia spp.&rft_subject=Order Foraminiferida - undifferentiated&rft_subject=Order Tintinnida - undifferentiated&rft_subject=Proboscia spp.&rft_subject=Thalassiosira spp.&rft_subject=Countries | Australia&rft_subject=Global / Oceans | Indian Ocean&rft_subject=Global / Oceans | Pacific Ocean&rft_subject=Integrated Marine Observing System Southern Ocean Time Series climate and carbon cycle moorings.&rft.type=dataset&rft.language=English Access the data
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This material is released under the Creative Commons Attribution 4.0 International licence. The citation in a list of references is: "IMOS [year-of-data-download], [Title], [data-access-URL], accessed [date-of-access]." Any users of IMOS data are required to clearly acknowledge the source of the material in the format described in the acknowledgements section.

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Brief description

This dataset comprises the phytoplankton abundance and biovolume estimates as part of a broader sampling program carried out at the Southern Ocean Time Series, a facility within the Integrated Marine Observing System (IMOS). The primary focus is sustained observing of ocean properties and processes important to climate, carbon cycling, and ocean productivity. Regular phytoplankton samples are collected at approximately 14 day intervals (exact intervals and seasonal coverage dependent on deployment length). The moorings are serviced annually, at which time the existing moorings are recovered and new moorings are deployed. Water samples from within the surface mixed-layer are collected at pre-programmed intervals using a Remote Access Sampler, in pairs about 1 hour apart. One sample in each pair is preserved for phytoplankton community composition by microscopy, and the other sample is preserved and used for accompanying chemical analysis of nutrients, total dissolved inorganic carbon (DIC) and alkalinity.
Each sample is collected from within the surface mixed-layer at 32 m depth (2010 - 2017) or 5 m depth (2018-current) depending on the design of the mooring surface assembly and instrumentation. Typically a maximum of 24 samples are collected over an annual deployment cycle. The samples collected are analysed for: 1. Community composition / abundance (cells/L) 2. calculated biovolume (um3/L). Protocols for the phytoplankton time-series are described in Eriksen et al (2018), and the annual sample reports for each deployment.
Data storage and access is planned to be interoperable with other national and international programs through the IMOS Infrastructure. Station metadata can be found through this resource. Data is available freely via the AODN portal: https://portal.aodn.org.au. As the taxonomic resolution of the data has changed over time, due to continual training, it is important that users refer to the change log tables included in your data download. These will provide information on the validity of the taxa, from what date we have been identifying certain taxa etc. Classification fields may be blank depending on the level to which that taxa has been identified, i.e. if only identified to family, genus and species will be blank.

Lineage

Progress Code: completed
Maintenance and Update Frequency: asNeeded
Statement: Data sampling is being conducted as part of a larger IMOS monitoring program. The phytoplankton samples are returned to CSIRO O&A, Hobart and analysed at the Australian Antarctic Division. Four hundred mL of sample is settled in a 500 mL measuring cylinder for 24 hours. The top ~300mL is siphoned off once settled and the remainder is transferred into a 100ml measuring cylinder and left to settle for a minimum of 24 hours. Once settled the top 85 mL is siphoned off from these samples and the remainder is gently mixed and transferred into an amber glass sample jar. Samples are stored at 4 oC until analysis. This is gently agitated and a 6mL sample is taken and transferred into an Utermohl chamber. The whole sample is scanned at 100x magnification for species composition and consecutive fields of view counted at 320x until 400 cells of the dominant group or species were observed. The maximum used for identification is 640x magnification. These counts are then converted to cells / L and mL / L and the analysis data is exported to AODN: https://portal.aodn.org.au.

Notes

Credit
These data are from the Integrated Marine Observing System (IMOS) - IMOS is a national collaborative research infrastructure, supported by the Australian Government. The phytoplankton samples are collected in-situ and preserved using a Remote Access Sampler, which remains at the site until the mooring is retrieved. Samples are sent to the Hobart CSIRO O&A laboratories and the Australian Antarctic Division for analysis.
Credit
T. Trull
Credit
D. Davies
Credit
R. Eriksen
Credit
P. Jansen
Credit
C. Wynn-Edwards
Credit
C. Schallenberg
Credit
E. Shadwick

Data time period: 2008-09-01

This dataset is part of a larger collection

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146,-42 146,-52 136,-52 136,-42 146,-42

141,-47

text: westlimit=136; southlimit=-52; eastlimit=146; northlimit=-42

text: uplimit=-25; downlimit=-100

Subjects
Alkalinity | AMOEBOIDS | AQUATIC ECOSYSTEMS | Bacteria/Archaea | BIOLOGICAL CLASSIFICATION | BIOSPHERE | Bacteriastrum spp. | Ciliates | Coastal Habitat | Coccolithophores | Cerataulina spp. | Ceratium fusus | Chaetoceros (Hyalochaete) spp. | Class Acantharia - undifferentiated | Countries | Australia | Diatoms | Dinoflagellates | EARTH SCIENCE | Flagellates | FLAGELLATES | Fluorescence | Foraminifers | Global / Oceans | Indian Ocean | Global / Oceans | Pacific Ocean | HAPTOPHYTES | Inorganic Carbon | Integrated Marine Observing System Southern Ocean Time Series climate and carbon cycle moorings. | Leptocylindrus spp. | Microalgae | Moored Instruments | Nitzschia spp. | OCEAN CHEMISTRY | OCEAN OPTICS | OCEAN TEMPERATURE | OCEANS | Optical Microscopes | Order Foraminiferida - undifferentiated | Order Tintinnida - undifferentiated | Pelagic Habitat | Phytoplankton | PLANKTON | Plants | PLANTS | Protists | PROTISTS | Proboscia spp. | Salinity | SALINITY/DENSITY | Secchi Depth | Turbidity | Thalassiosira spp. | Water Temperature | biota | oceans |

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Other Information
AODN portal (Data Link)

uri : https://portal.aodn.org.au

ANMN National Reference Station (NRS) Sub-Facility metadata record XXXXXXXXXX (Documentation Link)

uri : https://catalogue-imos.aodn.org.au/geonetwork/srv/api/records/6c981d98-d7fb-4120-9ebe-347ef1188ae0

National Mooring Network - Home page XXXXXXXXXXX (Documentation Link)

uri : https://imos.org.au/facilities/nationalmooringnetwork

Identifiers
  • global : 745a1023-5846-42da-9abf-df666a3b1c56
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