From Australian Oceans Data Network
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Krill Ocean Acidification Physiology Data

Created 23/06/2025

Updated 23/06/2025

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Antarctic krill (Euphausia superba) have a keystone role in the Southern Ocean, as the primary prey of Antarctic predators. Any decreases in krill abundance could result in a major ecological regime shift, but there is currently limited information on how climate change may affect krill. Increasing anthropogenic carbon dioxide (CO2) emissions are causing ocean acidification, as absorption of atmospheric CO2 in seawater alters ocean chemistry. Ocean acidification increases mortality and negatively affects physiological functioning in some marine invertebrates, and is predicted to occur most rapidly at high latitudes. Here we show that, in the laboratory, adult krill are able to survive, grow, store fat, mature, and maintain respiration rates when exposed to near-future ocean acidification (1000 – 2000 μatm pCO2) for one year. Despite differences in seawater pCO2 incubation conditions, adult krill are able to actively maintain the acid-base balance of their body fluids in near-future pCO2, which enhances their resilience to ocean acidification.

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Additional Info

Field Value
Title Krill Ocean Acidification Physiology Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/bbc0765c-0072-49f5-a019-93bfefd46e26
Contact Point
Australian Ocean Data Network
jessica.ericson@utas.edu.au
Reference Period 19/01/2016 - 04/04/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.67041,
        -43.45891
      ],
      [
        147.791015625,
        -43.45891
      ],
      [
        147.791015625,
        -42.68629
      ],
      [
        146.67041,
        -42.68629
      ],
      [
        146.67041,
        -43.45891
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Krill Ocean Acidification Physiology Data". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/krill-ocean-acidification-physiology-data