The microplankton organisms at the oxic‐anoxic interface in the pelagial of the Black Sea
The microplankton organisms at the oxic‐anoxic interface in the pelagial of the Black Sea
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DOI：
10.1111/j.1574-6941.1992.tb01661.x
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发表时间：
1992-10
影响因子：
2.1
通讯作者：
M. Zubkov;A. Sazhin;M. Flint
中科院分区：
文献类型：
--
作者：
M. Zubkov;A. Sazhin;M. Flint
黑海深水的半永久性缺氧支持了在缺氧界面形成独特的微型浮游生物群落。其中一组纤毛虫（Pleuronema marinum, Askenasia sp.，隶属于细蝽科、细蝽科和细蝽科）栖息在H2S上界以上的水层，与大型无色硫菌（Thiovulum spp.）在空间上有关联并以其为食。其他纤毛虫（scuticoiliatida目）分布在H2S带的上层。其中相当一部分具有外共生细菌。由于在O2和H2S边界层中未发现后生动物，因此原生生物群落被认为是利用化养细菌生产的主要因素。
The semi-permanent anoxia in the deep-waters of the Black Sea supported the formation of a unique microplankton community at the oxicanoxic interface. One group of ciliates (Pleuronema marinum, Askenasia sp., species of the families Tracheliidae, Holophryidae and Amphileptidae) inhabited the water layer just above the upper boundary of H2S, and was spatially associated with and fed on large colorless sulphur bacteria (Thiovulum spp.). Other ciliates (species of order Scuticociliatida) populated the upper layer of the H2S zone. A significant part of them possessed ectosymbiotic bacteria. Since the metazoans were not found in the O2 and H2S boundary layer, the protist community is considered to be the main factor in utilization of chemotrophic bacterial production.