Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido
The amount of prior light exposure an algal community receives is likely to determine its ability to recover from exposure to high light levels. Here we investigate the effect of time of day and light on the ability of ice algae to recover from variable light exposure. The ice algae were obtained fr...
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Institute of Antarctic and Southern Ocean Studies, Private Bag 77, University of Tasmania
2006
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ftnipr:oai:nipr.repo.nii.ac.jp:00006256 2023-05-15T16:36:33+02:00 Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido Andrew McMinn Hiroshi Hattori 2006-12 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6256 http://id.nii.ac.jp/1291/00006256/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6256&item_no=1&attribute_id=18&file_no=1 en eng Institute of Antarctic and Southern Ocean Studies, Private Bag 77, University of Tasmania Hokkaido Tokai University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6256 http://id.nii.ac.jp/1291/00006256/ AA11327019 Polar bioscience, 20, 30-36(2006-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6256&item_no=1&attribute_id=18&file_no=1 sea ice Hokkaido recovery photoinhibition Departmental Bulletin Paper P(論文) 2006 ftnipr 2023-03-18T20:23:29Z The amount of prior light exposure an algal community receives is likely to determine its ability to recover from exposure to high light levels. Here we investigate the effect of time of day and light on the ability of ice algae to recover from variable light exposure. The ice algae were obtained from Saroma Ko lagoon, a temperate, perennially ice covered lagoon in northern Hokkaido, Japan. Under ice irradiance varied between 0 and 122 μmol photons m^(-2)s^(-1). Algal biomass, which was dominated by Nitzschia frigida, was 272.8±20.2 mg Chl a m^(-2). There was no consistent relationship between ambient in situ irradiance and recovery rates. While the sea ice community showed mild inhibition at the highest irradiance used, 490 μmol photons m^(-2)s^(-1), after 10 min the quantum yield had recovered to between 90.9% and 112% (average 99.5%) of the original measurement. It is likely that ambient under ice irradiances at Saroma Ko lagoon were never sufficient to cause photoinhibition and consequently had little negative long term effect on photophysiology. The Rapid Light Curves, while providing irradiances of sufficient intensity to cause inhibition, were of too short a duration to cause anything but a short, transient effect. Therefore, it is unclear whether higher in situ irradiances would necessitate a longer period of recovery. Report ice algae Polar bioscience Sea ice National Institute of Polar Research Repository, Japan |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
sea ice Hokkaido recovery photoinhibition |
spellingShingle |
sea ice Hokkaido recovery photoinhibition Andrew McMinn Hiroshi Hattori Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
topic_facet |
sea ice Hokkaido recovery photoinhibition |
description |
The amount of prior light exposure an algal community receives is likely to determine its ability to recover from exposure to high light levels. Here we investigate the effect of time of day and light on the ability of ice algae to recover from variable light exposure. The ice algae were obtained from Saroma Ko lagoon, a temperate, perennially ice covered lagoon in northern Hokkaido, Japan. Under ice irradiance varied between 0 and 122 μmol photons m^(-2)s^(-1). Algal biomass, which was dominated by Nitzschia frigida, was 272.8±20.2 mg Chl a m^(-2). There was no consistent relationship between ambient in situ irradiance and recovery rates. While the sea ice community showed mild inhibition at the highest irradiance used, 490 μmol photons m^(-2)s^(-1), after 10 min the quantum yield had recovered to between 90.9% and 112% (average 99.5%) of the original measurement. It is likely that ambient under ice irradiances at Saroma Ko lagoon were never sufficient to cause photoinhibition and consequently had little negative long term effect on photophysiology. The Rapid Light Curves, while providing irradiances of sufficient intensity to cause inhibition, were of too short a duration to cause anything but a short, transient effect. Therefore, it is unclear whether higher in situ irradiances would necessitate a longer period of recovery. |
format |
Report |
author |
Andrew McMinn Hiroshi Hattori |
author_facet |
Andrew McMinn Hiroshi Hattori |
author_sort |
Andrew McMinn |
title |
Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
title_short |
Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
title_full |
Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
title_fullStr |
Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
title_full_unstemmed |
Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
title_sort |
effect of time of day on the recovery from light exposure in ice algae from saroma ko lagoon, hokkaido |
publisher |
Institute of Antarctic and Southern Ocean Studies, Private Bag 77, University of Tasmania |
publishDate |
2006 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6256 http://id.nii.ac.jp/1291/00006256/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6256&item_no=1&attribute_id=18&file_no=1 |
genre |
ice algae Polar bioscience Sea ice |
genre_facet |
ice algae Polar bioscience Sea ice |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6256 http://id.nii.ac.jp/1291/00006256/ AA11327019 Polar bioscience, 20, 30-36(2006-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6256&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766026886980304896 |