From Australian Oceans Data Network
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Circumpolar Antarctic krill spawning habitat

Created 23/06/2025

Updated 23/06/2025

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Antarctic krill is a key component of Southern Ocean ecosystems and there is significant interest in identifying regions acting as sources for the krill population. We develop a mechanistic model combining thermal and food requirements for krill egg production, with predation pressure post-spawning, to predict regions that could support high larval production (spawning habitat). We optimise our model on regional data using a maximum likelihood approach and then generate circumpolar predictions of spawning habitat quality. The uploaded datasets represent model predictions of seasonal circumpolar spawning habitat quality of Antarctic krill as well as composite data of the circumpolar mean annual number of weeks in which modelled spawning habitat quality is higher than the summer 80th percentile.

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Additional Info

Field Value
Title Circumpolar Antarctic krill spawning habitat
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/28b7809a-baea-4d29-8f33-f2d165c14127
Contact Point
Australian Ocean Data Network
david.green@utas.edu.au
Reference Period 01/01/1998 - 31/12/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        -180.0,
        -90.0
      ],
      [
        180.0,
        -90.0
      ],
      [
        180.0,
        -40.0
      ],
      [
        -180.0,
        -40.0
      ],
      [
        -180.0,
        -90.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Circumpolar Antarctic krill spawning habitat". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/circumpolar-antarctic-krill-spawning-habitat