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Southern Ocean Calcareous Zooplankton Response to Ocean Acidification - Data from V3 2012 of the Aurora Australis

Created 23/06/2025

Updated 23/06/2025

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These data have been collected as part of ASAC (AAS) project 3046 on voyage 3 of the Aurora Australis in the 2011-2012 season. Data were collected from a series of RMT Trawls conducted from the trawl deck of the ship. Public Description of the Project The overall objective is to characterise the response of Southern Ocean calcareous zooplankton to ocean acidification resulting from anthropogenic CO2 emissions. Simulated increases in anthropogenic CO2 suggest a reduction in the calcification rates of calcareous organisms. A change in the calcification in the Southern Ocean may cause marine ecosystem shifts and in turn alter the capacity for the ocean to absorb CO2 from the atmosphere. We plan to take advantage of naturally-occurring, persistent, zonal variations in Southern Ocean primary production and biomass to investigate the effects of CO2 addition from anthropogenic sources on Southern Ocean calcareous zooplankton communities. A download file containing an excel spreadsheet of data can be found at the provided URL. Project objectives: The overall objective of this project is to characterise the impacts of recent, primarily anthropogenic, increases in atmospheric CO2 and related changes in the carbonate chemistry on shell formation by calcareous zooplankton in the Australian sector of the Southern Ocean. Calcareous zooplankton (e.g. planktonic foraminifera and pteropods) will be collected using plankton nets at five Southern Ocean localities during high seasonal flux periods. Planktonic foraminiferal and pteropod species and abundances, calcification rates and geochemistry (stable isotope and trace-metal) will be determined on plankton tow samples. Data from recent plankton tow samples will be compared with data deposited historically in the Southern Ocean and recovered from existing deep ocean sediment cores to provides insights about the extent to which modern carbon conditions may have already generated ecological impacts. The project will also provide a baseline of the present-day impact of ocean acidification and can be used to monitor the influence of future anthropogenic CO2 emissions in Southern Ocean ecosystems.

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Additional Info

Field Value
Title Southern Ocean Calcareous Zooplankton Response to Ocean Acidification - Data from V3 2012 of the Aurora Australis
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/42bc6829-31e6-42bc-8c5b-6ac2a984c689
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 06/01/2012 - 09/01/2012
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        145.15,
        -58.0
      ],
      [
        147.25,
        -58.0
      ],
      [
        147.25,
        -45.0
      ],
      [
        145.15,
        -45.0
      ],
      [
        145.15,
        -58.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Southern Ocean Calcareous Zooplankton Response to Ocean Acidification - Data from V3 2012 of the Aurora Australis". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/southern-ocean-calcareous-zooplankton-response-to-ocean-acidification-data-from-v3-2012-of-the-