Benthic moss pillars in Antarctic lakes
Benthic moss pillars in Antarctic lakes
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DOI：
10.1007/s003000050401
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发表时间：
1999-08-01
期刊：
影响因子：
1.7
通讯作者：
Kanda, H
中科院分区：
文献类型：
--
作者：
Imura, S;Bando, T;Kanda, H
在南极洲大陆的Syowa站（69 ° 00'S，39 ° 35 'E）附近的一些淡水湖泊中，发现了从蓝藻和藻类垫中生长出来的独特的柱状水生苔藓群落。这些苔藓柱直径约40厘米，高达60厘米，主要出现在湖底3至5米深的地方。主要成分是一种Leptobryum，一个在南极大陆陆地苔藓植物区系中未知的属，在世界其他地方是一个水生属。真藓（Bryum pseudotriquetrum）通常是一个伴生种。在纵剖面中，柱子显示出由矿物沉积物和死亡的蓝藻形成的几个发白的层。据推测，许多南极湖泊底部的水生苔藓生物量比以前估计的要大得多。
Unique pillar-like colonies of aquatic mosses, rising from cyanobacterial and algal mats, have been discovered in some freshwater lakes in the vicinity of Syowa Station (69 degrees 00'S, 39 degrees 35'E), continental Antarctica. These moss pillars are about 40 cm in diameter and up to 60 cm high and occur at the lake bottoms mainly between 3 and 5 m depth. The primary component is a species of Leptobryum, a genus unknown in the continental Antarctic terrestrial bryoflora and as an aquatic genus elsewhere in the world. Bryum pseudotriquetrum is often an associated species. In longitudinal section the pillars reveal several whitish layers formed by mineral sediment and dead cyanobacteria. It is speculated that the biomass of aquatic mosses at the bottom of many Antarctic lakes is considerably greater than that previously estimated.