Planktonic viruses, heterotrophic bacteria, and nanoflagellates in fresh and coastal marine waters of the Kara Sea Basin (the Arctic)

被引：0
|
作者：
A. I. Kopylov
D. B. Kosolapov
E. A. Zabotkina
P. V. Boyarskii
V. N. Shumilkin
N. A. Kuznetsov
机构：
[1] Russian Academy of Sciences,Papanin Institute for Biology of Inland Waters
[2] Likhachev Research Institute for Cultural and Natural Heritage,undefined
来源：
Inland Water Biology | 2012年 / 5卷
关键词：
bacteria; viruses; virus-mediated mortality of bacteria; heterotrophic nanoflagellates; Kara Sea; Arctic;
D O I：
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摘要：
In August–September 2009, the concentration of dissolved organic matter and quantitative distribution of virioplankton, bacterioplankton, and heterotrophic nanoflagellates were studied in the coastal waters of the Kara Sea, the fresh waters of the islands and the coasts of the sea, and the estuaries of the Ob’ and Yenisei rivers. A high positive correlation was observed between the abundances of viruses and bacteria. The frequency of visibly infected bacteria in marine waters ranged from 0.6 to 4.3% (an average of 1.6%); in the fresh waters of islands and coastline and in estuaries, it ranged from 0.3 to 3.9% (an average of 1.5%) and from 0.5 to 1.6% (an average of 1.1%) respectively. In most surveyed water bodies, the role of viruses in bacterioplankton mortality was considerably higher than that of heterotrophic flagellates.
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页码：241 / 249
页数：8
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