Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters
©2017. Commonwealth of Australia. Antarctic pack ice serves as habitat for microalgae which contribute to Southern Ocean primary production and serve as important food source for pelagic herbivores. Ice algal biomass is highly patchy and remains severely undersampled by classical methods such as spa...
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American Geophysical Union
2017
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Online Access: | https://hdl.handle.net/20.500.11937/71513 https://doi.org/10.1002/2017GL074346 |
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ftcurtin:oai:espace.curtin.edu.au:20.500.11937/71513 2023-06-11T04:04:18+02:00 Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters Meiners, K. Arndt, S. Bestley, S. Krumpen, T. Ricker, R. Milnes, M. Newbery, K. Freier, U. Jarman, Simon King, R. Proud, R. Kawaguchi, S. Meyer, B. 2017 fulltext https://hdl.handle.net/20.500.11937/71513 https://doi.org/10.1002/2017GL074346 unknown American Geophysical Union http://hdl.handle.net/20.500.11937/71513 doi:10.1002/2017GL074346 Journal Article 2017 ftcurtin https://doi.org/20.500.11937/7151310.1002/2017GL074346 2023-05-30T19:54:29Z ©2017. Commonwealth of Australia. Antarctic pack ice serves as habitat for microalgae which contribute to Southern Ocean primary production and serve as important food source for pelagic herbivores. Ice algal biomass is highly patchy and remains severely undersampled by classical methods such as spatially restricted ice coring surveys. Here we provide an unprecedented view of ice algal biomass distribution, mapped (as chlorophyll a) in a 100 m by 100 m area of a Weddell Sea pack ice floe, using under-ice irradiance measurements taken with an instrumented remotely operated vehicle. We identified significant correlations (p < 0.001) between algal biomass and concomitant in situ surface measurements of snow depth, ice thickness, and estimated sea ice freeboard levels using a statistical model. The model's explanatory power (r2 = 0.30) indicates that these parameters alone may provide a first basis for spatial prediction of ice algal biomass, but parameterization of additional determinants is needed to inform more robust upscaling efforts. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean Weddell Sea Curtin University: espace Antarctic Southern Ocean Weddell Weddell Sea Geophysical Research Letters 44 14 7382 7390 |
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description |
©2017. Commonwealth of Australia. Antarctic pack ice serves as habitat for microalgae which contribute to Southern Ocean primary production and serve as important food source for pelagic herbivores. Ice algal biomass is highly patchy and remains severely undersampled by classical methods such as spatially restricted ice coring surveys. Here we provide an unprecedented view of ice algal biomass distribution, mapped (as chlorophyll a) in a 100 m by 100 m area of a Weddell Sea pack ice floe, using under-ice irradiance measurements taken with an instrumented remotely operated vehicle. We identified significant correlations (p < 0.001) between algal biomass and concomitant in situ surface measurements of snow depth, ice thickness, and estimated sea ice freeboard levels using a statistical model. The model's explanatory power (r2 = 0.30) indicates that these parameters alone may provide a first basis for spatial prediction of ice algal biomass, but parameterization of additional determinants is needed to inform more robust upscaling efforts. |
format |
Article in Journal/Newspaper |
author |
Meiners, K. Arndt, S. Bestley, S. Krumpen, T. Ricker, R. Milnes, M. Newbery, K. Freier, U. Jarman, Simon King, R. Proud, R. Kawaguchi, S. Meyer, B. |
spellingShingle |
Meiners, K. Arndt, S. Bestley, S. Krumpen, T. Ricker, R. Milnes, M. Newbery, K. Freier, U. Jarman, Simon King, R. Proud, R. Kawaguchi, S. Meyer, B. Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters |
author_facet |
Meiners, K. Arndt, S. Bestley, S. Krumpen, T. Ricker, R. Milnes, M. Newbery, K. Freier, U. Jarman, Simon King, R. Proud, R. Kawaguchi, S. Meyer, B. |
author_sort |
Meiners, K. |
title |
Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters |
title_short |
Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters |
title_full |
Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters |
title_fullStr |
Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters |
title_full_unstemmed |
Antarctic pack ice algal distribution: Floe-scale spatial variability and predictability from physical parameters |
title_sort |
antarctic pack ice algal distribution: floe-scale spatial variability and predictability from physical parameters |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
https://hdl.handle.net/20.500.11937/71513 https://doi.org/10.1002/2017GL074346 |
geographic |
Antarctic Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
op_relation |
http://hdl.handle.net/20.500.11937/71513 doi:10.1002/2017GL074346 |
op_doi |
https://doi.org/20.500.11937/7151310.1002/2017GL074346 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
14 |
container_start_page |
7382 |
op_container_end_page |
7390 |
_version_ |
1768386823247101952 |