IMAS Metadata Catalogue
Circumpolar Antarctic krill spawning habitat
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.
Simple
Identification info
- Date (Creation)
- 2020-10-09
- Date (Publication)
- 2021-04-13
- Citation identifier
-
doi:10.25959/XXGM-N693
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2021-04-13
- Citation identifier
-
ISO 26324:2012
- Citation identifier
-
https://doi.org/10.25959/XXGM-N693
Principal investigator
Principal investigator
Principal investigator
Collaborator
Collaborator
Principal investigator
- Credit
- This study received support from the European H2020 International Cooperation project MESOPP No 692173 (Mesopelagic Southern Ocean Prey and Predators, www.mesopp.eu/). D.B.G. was funded through a Tasmania Graduate Research Scholarship. S.B. was supported by the Australian Research Council under DECRA award DE180100828.
- Status
- Completed
Point of contact
- Topic category
-
- Biota
- Climatology, meteorology, atmosphere
Extent
))
Temporal extent
- Time period
- 1998-01-01 2017-12-31
- Maintenance and update frequency
- Not planned
- Keywords (Theme)
-
- Southern Ocean
- Ecosystem Modelling
- Keywords (Taxon)
-
- Antarctic krill
- Euphausia superba
- NASA/GCMD Keywords, Version 8.5
- NASA/GCMD Keywords, Version 8.5
-
- EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | BIOGEOCHEMICAL CYCLES
- EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | CHLOROPHYLL
- EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | NUTRIENTS
- EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | OXYGEN
- EARTH SCIENCE | BIOSPHERE | ECOLOGICAL DYNAMICS | ECOSYSTEM FUNCTIONS | PHOTOSYNTHESIS
- EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | CARBON DIOXIDE
- Keywords (Theme)
-
- Krill spawning habitat index (values 0-1)
Resource constraints
- Classification
- Unclassified
Resource constraints
- Use limitation
- The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Website
-
http://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Cite data as: Green, D., Bestley, S., Corney, S., Trebilco, R., Lehodey, P., & Hindell, M. (2020). Circumpolar Antarctic krill spawning habitat [Data set]. Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS). https://doi.org/10.25959/XXGM-N693
- Language
- English
- Character encoding
- UTF8
- Supplemental Information
- Green, D. B., S. Bestley, S. P. Corney, R. Trebilco, P. Lehodey, and M. A. Hindell (in review), Modelling circumpolar spawning habitat quality to identify regions with potential to support high larval production for Antarctic krill, Geophysical Research Letters.
Content Information
- Content type
- Physical measurement
- Name
-
Krill spawning habitat index (values 0-1)
- Name
-
Spawning habitat
- Name
- Index (0-1)
Distribution Information
- Distribution format
-
-
NetCDF
-
NetCDF
- OnLine resource
-
DATA ACCESS - krill spawning habitat [.nc files]
Resource lineage
- Statement
- 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 optimize our model on regional data using a maximum likelihood approach and then generate circumpolar predictions of spawning habitat quality.
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
-
c6a1ece6-f697-4c7e-9c68-dd6e4e4c0a3d
- Language
- English
- Character encoding
- UTF8
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/c6a1ece6-f697-4c7e-9c68-dd6e4e4c0a3d
Point of truth URL of this metadata record
- Date info (Creation)
- 2021-05-20T14:58:15
- Date info (Revision)
- 2021-05-20T14:58:15
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
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