The influence of fluctuating light intensities on species composition and diversity of natural phytoplankton communities

被引:0
|
作者
Sabine Flöder
Jotaro Urabe
Zen-ichiro Kawabata
机构
[1] Kyoto University,Center for Ecological Research
[2] Kamitanakami Hiranocho,Department of Zoology
[3] University of Otago,undefined
来源
Oecologia | 2002年 / 133卷
关键词
Competition; Irradiance; Plankton; Succession;
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摘要
The influence of fluctuating light intensities on phytoplankton composition and diversity was investigated for 49 days under semi-continuous culture conditions with sufficient nutrient supply, using phytoplankton assemblages from Lake Biwa, Japan. Light conditions were either periodically changed from high intensity (100 µmol photons m–2 s–1) to low intensity (20 µmol photons m–2 s–1) at intervals of 1, 3, 6 and 12 days, or fixed to constant intensities (permanent high and low light levels). All treatments additionally experienced a day:night cycle of 16:8 h.
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页码:395 / 401
页数:6
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