2003年8月
Photosynthetic potential of phytoplankton in the deep water of Lake Baikal, Russia
LIMNOLOGY
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- 巻
- 4
- 号
- 2
- 開始ページ
- 113
- 終了ページ
- 117
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s10201-003-0098-x
- 出版者・発行元
- SPRINGER-VERLAG TOKYO
We examined the photosynthetic activity of the phytoplankton community collected from the surface to a depth of 1000m in the south basin of Lake Baikal. Experiments were conducted in June (mixing period) and August (stratified period). The carbon fixation rate was measured by the use of a 13C tracer after the incubation of samples under light conditions in the upper water column. Photosynthetic fixation of 13C was detected for samples collected from a depth of 500m, indicating the viability of phytoplankton in deep water. The community composition was dominated by Bacillariophyceae in deep water. The finding of lower activity at a depth of 200m than that at a depth of 500m in August suggests that the spring diatom bloom could be a significant source of viable populations at a depth of 500m. Photosynthetic activity was not detected in samples collected at a depth of 1000m.
- リンク情報
- ID情報
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- DOI : 10.1007/s10201-003-0098-x
- ISSN : 1439-8621
- Web of Science ID : WOS:000185183700007