Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer
Abstract: The photosynthesis-irradiance characteristics (P-E curves) and quantum yields of natural phytoplankton were investigated in the Southern Ocean off Adelie Land, Antarctica, during the austral summer. Data were acquired at eight stations during a cruise of T/V Umitaka-Maru 111. The photosynt...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.509.7050 2023-05-15T13:04:18+02:00 Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer Toru Hirawake Hiroo Satoh Takashi Ishimaru Yukuya Yamaguchi The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.509.7050 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/2000-Hirawake.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.509.7050 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/2000-Hirawake.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/2000-Hirawake.pdf Land text ftciteseerx 2016-01-08T09:33:02Z Abstract: The photosynthesis-irradiance characteristics (P-E curves) and quantum yields of natural phytoplankton were investigated in the Southern Ocean off Adelie Land, Antarctica, during the austral summer. Data were acquired at eight stations during a cruise of T/V Umitaka-Maru 111. The photosynthetic P-E curves showed low light adaptation of phytoplankton. Mean value (±standar deviation) of the P-E curve parameters, a*, and Ik, were 0.014 (k0.013) mgC (mg ch1.a) ' h ' (pmol photons m s ' ) ' and 76 ( k 5 5) pmol photons m s ' , respectively. Although phytoplankton were adapted to low irradiance, the phytoplankton in the SCM were not fully adapted to the low irradiance prevailing at those depths. P*max in the studied region was low (mean of 0.66 (k0.37) mgC (mg ch1.a) ' h ' ) and generally lower than the previously reported values in waters near the Antarctic Peninsula. The maximum quantum yield varied widely, ranging from 0.001 to 0.038mol C (mol photons absorbed) ' at the surface and from 0.007 to 0.092mol C (mol photons absorbed) ' near the bottom of the euphotic zone. These values were within the range of published data. Comparison of photosynthetic parameters with historical data indicated that primary productivity from remotely sensed data for the whole of the Southern Ocean, based on these field estimates of photosynthetic parameters, has been overestimated. key words: photosynthesis-irradiance curve, quantum yield, phytoplankton, Adelie Text Adelie Land Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean Unknown Antarctic Antarctic Peninsula Austral Southern Ocean The Antarctic |
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Land Toru Hirawake Hiroo Satoh Takashi Ishimaru Yukuya Yamaguchi Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer |
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description |
Abstract: The photosynthesis-irradiance characteristics (P-E curves) and quantum yields of natural phytoplankton were investigated in the Southern Ocean off Adelie Land, Antarctica, during the austral summer. Data were acquired at eight stations during a cruise of T/V Umitaka-Maru 111. The photosynthetic P-E curves showed low light adaptation of phytoplankton. Mean value (±standar deviation) of the P-E curve parameters, a*, and Ik, were 0.014 (k0.013) mgC (mg ch1.a) ' h ' (pmol photons m s ' ) ' and 76 ( k 5 5) pmol photons m s ' , respectively. Although phytoplankton were adapted to low irradiance, the phytoplankton in the SCM were not fully adapted to the low irradiance prevailing at those depths. P*max in the studied region was low (mean of 0.66 (k0.37) mgC (mg ch1.a) ' h ' ) and generally lower than the previously reported values in waters near the Antarctic Peninsula. The maximum quantum yield varied widely, ranging from 0.001 to 0.038mol C (mol photons absorbed) ' at the surface and from 0.007 to 0.092mol C (mol photons absorbed) ' near the bottom of the euphotic zone. These values were within the range of published data. Comparison of photosynthetic parameters with historical data indicated that primary productivity from remotely sensed data for the whole of the Southern Ocean, based on these field estimates of photosynthetic parameters, has been overestimated. key words: photosynthesis-irradiance curve, quantum yield, phytoplankton, Adelie |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Toru Hirawake Hiroo Satoh Takashi Ishimaru Yukuya Yamaguchi |
author_facet |
Toru Hirawake Hiroo Satoh Takashi Ishimaru Yukuya Yamaguchi |
author_sort |
Toru Hirawake |
title |
Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer |
title_short |
Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer |
title_full |
Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer |
title_fullStr |
Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer |
title_full_unstemmed |
Photosynthetic characteristics of phytoplankton off Adklie Land, Antarctica, during the austral summer |
title_sort |
photosynthetic characteristics of phytoplankton off adklie land, antarctica, during the austral summer |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.509.7050 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/2000-Hirawake.pdf |
geographic |
Antarctic Antarctic Peninsula Austral Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral Southern Ocean The Antarctic |
genre |
Adelie Land Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
genre_facet |
Adelie Land Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
op_source |
http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/2000-Hirawake.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.509.7050 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/2000-Hirawake.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766356596739276800 |