A simple method for estimating phytoplankton abundance using a surface seawater monitoring system off Syowa Station during austral summer
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概要
- 論文の詳細を見る
A surface seawater monitoring system was used aboard the Shirase to estimate phytoplankton abundance while the icebreaker was anchored in an ice covered area off Syowa Station during the austral summer of 1996/97. A significant positive relationship was observed between the digital output (OP) values of the chlorophyll fluorometer of the system, and chlorophyll a (Chl a) concentrations of the seawater that passed through the system. Using this relationship, OP values were converted into Chl a (Chl a OP). Throughout the present study, the Chl a OP was found to be consistent with temporal changes in Chl a observed in the field near the Shirase, with high Chl a OP values measured in relatively warm and less saline water. These findings suggest that the high Chl a may be derived from the ice-edge phytoplankton blooms that develop in stable waters associated with melting ice. Relatively simple operation without need for complicated maintenance procedures facilitates the ease with which the system can be used. The operation of the system every summer may facilitate the acquisition of data that reveal the long-term variability of phytoplankton biomass under fast ice.
- 国立極地研究所の論文
- 2005-01-01
著者
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Fukuchi Mitsuo
National Institute of Polar Research, 10-3 Midori-cho, Tachikawa-shi, Tokyo 190-8518, Japan
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Hirawake Toru
National Institute Of Polar Research
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Odate T
Hokkaido Univ. Hakodate
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Odate T
National Institute Of Polar Research
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Odate Tsuneo
National Institute Of Polar Research
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Fukuchi M
National Institute Of Polar Research 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Japan
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Fukuchi Mitsuo
National Inst. Of Polar Res. Kaga Tokyo 173-8515 Jpn
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Fukuchi Mitsuo
National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa Tokyo 190-8518 Jpn
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- PART 2. DATA ON PLANKTON SAMPLING
- PART 1. OCEANOGRAPHIC DATA
- ACKNOWLEDGMENTS
- OBSERVATION HUT
- FREQUENCY OF OBSERVATION
- PREFACE
- Foreword
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- 2. Vertical profiles of phytoplankton pigments
- 1. Geographical variations of chlorophyll a in the surface water
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