Data

Circumpolar Antarctic krill spawning habitat

Australian Ocean Data Network
Green, David ; Bestley, Sophie ; Corney, Stuart ; Trebilco, Rowan ; Lehodey, Patrick ; Hindell, Mark
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25959/XXGM-N693&rft.title=Circumpolar Antarctic krill spawning habitat&rft.identifier=10.25959/XXGM-N693&rft.description=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.Maintenance and Update Frequency: notPlannedStatement: 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.&rft.creator=Green, David &rft.creator=Bestley, Sophie &rft.creator=Corney, Stuart &rft.creator=Trebilco, Rowan &rft.creator=Lehodey, Patrick &rft.creator=Hindell, Mark &rft.date=2021&rft.coverage=westlimit=-180; southlimit=-90.00; eastlimit=-180; northlimit=-40.00&rft.coverage=westlimit=-180; southlimit=-90.00; eastlimit=-180; northlimit=-40.00&rft_rights=The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.&rft_rights= http://creativecommons.org/licenses/by/4.0/&rft_rights=http://i.creativecommons.org/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution 4.0 International License&rft_rights=http://creativecommons.org/international/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=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&rft_rights=Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0&rft_subject=biota&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=Southern Ocean&rft_subject=Ecosystem Modelling&rft_subject=Antarctic krill&rft_subject=Euphausia superba&rft_subject=EARTH SCIENCE | AGRICULTURE | AGRICULTURAL AQUATIC SCIENCES | FISHERIES&rft_subject=EARTH SCIENCE | BIOSPHERE | ECOLOGICAL DYNAMICS | ECOSYSTEM FUNCTIONS&rft_subject=EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | BIOGEOCHEMICAL CYCLES&rft_subject=EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | CHLOROPHYLL&rft_subject=EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | NUTRIENTS&rft_subject=EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | OXYGEN&rft_subject=EARTH SCIENCE | BIOSPHERE | ECOLOGICAL DYNAMICS | ECOSYSTEM FUNCTIONS | PHOTOSYNTHESIS&rft_subject=EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | CARBON DIOXIDE&rft_subject=Marine and Estuarine Ecology (incl. Marine Ichthyology)&rft_subject=BIOLOGICAL SCIENCES&rft_subject=ECOLOGY&rft_subject=Biological Oceanography&rft_subject=EARTH SCIENCES&rft_subject=OCEANOGRAPHY&rft_subject=Krill spawning habitat index (values 0-1)&rft.type=dataset&rft.language=English Access the data
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The data described in this record are the intellectual property of the University of Tasmania through the Institute for Marine and Antarctic Studies.

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License Text

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

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Brief description

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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Maintenance and Update Frequency: notPlanned
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.

Notes

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.

Data time period: 1998-01-01 to 2017-12-31

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-180,-86 -180,-40

-180,-65

text: westlimit=-180; southlimit=-90.00; eastlimit=-180; northlimit=-40.00

Subjects
Antarctic krill | Biological Sciences | Biological Oceanography | EARTH SCIENCE | AGRICULTURE | AGRICULTURAL AQUATIC SCIENCES | FISHERIES | EARTH SCIENCE | BIOSPHERE | ECOLOGICAL DYNAMICS | ECOSYSTEM FUNCTIONS | EARTH SCIENCE | BIOSPHERE | ECOLOGICAL DYNAMICS | ECOSYSTEM FUNCTIONS | PHOTOSYNTHESIS | EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | BIOGEOCHEMICAL CYCLES | EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | CARBON DIOXIDE | EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | CHLOROPHYLL | EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | NUTRIENTS | EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | OXYGEN | Earth Sciences | Ecology | Ecosystem Modelling | Euphausia superba | Krill spawning habitat index (values 0-1) | Marine and Estuarine Ecology (Incl. Marine Ichthyology) | Oceanography | Southern Ocean | biota | climatologyMeteorologyAtmosphere |

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Other Information
(DATA ACCESS - krill spawning habitat [.nc files])

uri : https://data.imas.utas.edu.au/attachments/c6a1ece6-f697-4c7e-9c68-dd6e4e4c0a3d

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