Survival strategy of diatom species living on now-depositing non-glacial varves
Survival strategy of diatom species living on now-depositing non-glacial varves
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DOI：
10.1016/j.quaint.2004.02.004
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发表时间：
2004-01-01
影响因子：
2.2
通讯作者：
Fukusawa, H
中科院分区：
文献类型：
--
作者：
Kato, M;Tanimura, Y;Fukusawa, H
一种淡水硅藻，亚北极藻，主要出现在日本中部水越湖明显的分层沉积物中。硅藻区系的序列变化表明，自17世纪以来，由于海水入侵和水柱分层加强的人为环境变化，只有硅藻存活了下来。解释其生存的一个可能的原因是，硅藻在不利的季节采取休息策略来抵抗厌氧的底部水。(C) 2004 Elsevier Ltd和INQUA。版权所有。
A freshwater diatom species, Aulacoseira subarctica, occurred dominantly from obviously laminated sections of varved sediment taken from Lake Suigetsu, central Japan. Sequential changes in diatom flora suggest only the species survived artificial environmental changes causing seawater invasion and strengthened stratification in water column since 17th century. A probable reason to explain its survival is that the diatom took resting strategy to resist anaerobic bottom water during unfavorable seasons. (C) 2004 Elsevier Ltd and INQUA. All rights reserved.