COMPOSITION AND VERTICAL PROFILES OF PHOTOSYNTHETIC PIGMENTS IN THE SEDIMENT OF LAKE KASUMIGAURA

被引：14
|
作者：
SOMA, Y
TANAKA, A
SOMA, M
机构：
[1] The National Institute for Environmental Studies, 16–2 Onogawa, Tsukuba
来源：
GEOCHEMICAL JOURNAL | 1995年 / 29卷 / 02期
关键词：
D O I：
10.2343/geochemj.29.107
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Phytoplankton pigments in the sediment of Lake Kasumigaura were analyzed by HPLC. The depth profiles of echinenone and myxoxanthophyll, which are characteristic carotenoids of blue-green algae, showed an increase after the lock gate (Hitachigawa-suimon) was constructed 30 years ago to prevent seawater coming into the lake. The depth profile of beta-carotene suggests that the algal biomass in the lake decreased 30 years ago, being consistent with the period of the construction of the lock gate, and then increased with the increase of freshwater phytoplankton such as blue-green algae.
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收藏
页码：107 / 113
页数：7
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