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Datasets / Australian Ocean Data Network (AODN)

Circumpolar Antarctic krill spawning habitat

NutrientsPhytoplankton biomass and diversityZooplankton biomass and diversity

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.

Data and resources

Additional information

Temporal extent1998-01-01 – 2017-12-31
Date (creation)2020-10-09
Date (publication)2021-04-13
Statuscompleted
Update frequencynotPlanned
Metadata languageen
LicenseCreative Commons Attribution 4.0
Source metadataISO 19115 XML
Last updated2026-11-05
Created2026-11-05
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