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...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
National Institute of Polar Research
2006
|
Subjects: | |
Online Access: | http://ecite.utas.edu.au/43560 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:43560 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:43560 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 McMinn, A Hattori, H 2006 http://ecite.utas.edu.au/43560 en eng National Institute of Polar Research McMinn, A and Hattori, H, Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido, Polar Bioscience, 20 pp. 30-36. ISSN 1344-6231 (2006) [Refereed Article] http://ecite.utas.edu.au/43560 Biological Sciences Plant Biology Phycology (incl. Marine Grasses) Refereed Article PeerReviewed 2006 ftunivtasecite 2019-12-13T21:19:50Z 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 mol photons m-2s-1. Algal biomass, which was dominated by Nitzschia firigida, was 272.820.2 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 mol photons m-2s-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 photo-inhibition 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. 2006 National Institute of Polar Research. Article in Journal/Newspaper ice algae National Institute of Polar Research Polar bioscience Sea ice eCite UTAS (University of Tasmania) |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Plant Biology Phycology (incl. Marine Grasses) |
spellingShingle |
Biological Sciences Plant Biology Phycology (incl. Marine Grasses) McMinn, A Hattori, H Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido |
topic_facet |
Biological Sciences Plant Biology Phycology (incl. Marine Grasses) |
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 mol photons m-2s-1. Algal biomass, which was dominated by Nitzschia firigida, was 272.820.2 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 mol photons m-2s-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 photo-inhibition 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. 2006 National Institute of Polar Research. |
format |
Article in Journal/Newspaper |
author |
McMinn, A Hattori, H |
author_facet |
McMinn, A Hattori, H |
author_sort |
McMinn, A |
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 |
National Institute of Polar Research |
publishDate |
2006 |
url |
http://ecite.utas.edu.au/43560 |
genre |
ice algae National Institute of Polar Research Polar bioscience Sea ice |
genre_facet |
ice algae National Institute of Polar Research Polar bioscience Sea ice |
op_relation |
McMinn, A and Hattori, H, Effect of time of day on the recovery from light exposure in ice algae from Saroma Ko lagoon, Hokkaido, Polar Bioscience, 20 pp. 30-36. ISSN 1344-6231 (2006) [Refereed Article] http://ecite.utas.edu.au/43560 |
_version_ |
1766026888314093568 |