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首页> 外文期刊>Estuarine Coastal and Shelf Science >Virioplankton of the Kara Sea and the Yenisei River estuary in early spring
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Virioplankton of the Kara Sea and the Yenisei River estuary in early spring

机译：早春时分的卡拉海和叶尼塞河河口浮游生物

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Here we present our research results on the virioplankton of the shelf zone of the Kara Sea. This is the first study of viruses and bacteria done in the Kara Sea in early spring when viruses can play an important role in the abundance and production control of the bacterioplankton. All other studies cover July September, that is, when the Kara Sea is completely ice-free and the community of viruses and bacteria is in an absolutely different stage of development. The samples were collected and processed on board of the vessel "Norilskiy Nickel" (project Aker ACS 650) between March 29 and April 8, 2016 on the regular cruise Murmansk - Dudinka. The abundance of bacteria (N-B) and viruses (N-V) located both underneath the ice and in the open waters of the Kara Sea and the Yenisei River estuary varied within a range of (0.075-0.429) x 10(6) cells x ml(-1) and (0.30-2.11) x 10(6) viral particles x I, respectively, and the N-V/N-B ratio varied from 2.6 to 15.4. A positive correlation was found between N-B and N-V = 0.70, p 0.05). Viruses with capsid diameter of 16-297 nm were registered in the water samples examined. The transmission electron microscopy data show that the fraction of the virus-infected bacterial cells is about 0.2-2.3% of total N-B. The mean viral-induced mortality of the bacteria calculated from all the sampling stations in the Kara Sea and the Yenisei River estuary was 7.8 +/- 1.2% (with a range from 1.4 to 20.2%) of the daily bacterioplankton production. Our results show that viruses play an important role in the abundance and production of bacterioplankton control in early spring.
机译：在这里，我们介绍我们对卡拉海陆架区浮游动物的研究结果。这是早春在卡拉海进行的有关病毒和细菌的第一个研究，当时病毒可以在浮游细菌的丰度和生产控制中发挥重要作用。所有其他研究都涵盖了9月至9月，即卡拉海完全无冰且病毒和细菌群落处于完全不同的发展阶段。在2016年3月29日至4月8日之间，在摩尔曼斯克-杜丁卡定期航行的“ Norilskiy Nickel”（Aker ACS 650项目）船上收集并处理样品。位于冰下以及卡拉海和叶尼塞河河口开放水域中的细菌（NB）和病毒（NV）的丰富度在（0.075-0.429）x 10（6）个细胞x ml（ -1）和（0.30-2.11）x 10（6）病毒颗粒x I，NV / NB比从2.6变化到15.4。发现N-B与N-V = 0.70之间存在正相关，p = 0.05）。在检测的水样中记录了衣壳直径为16-297 nm的病毒。透射电子显微镜数据显示，病毒感染的细菌细胞的比例约为总N-B的0.2-2.3％。从卡拉海和叶尼塞河河口的所有采样站计算出的细菌的平均病毒诱导死亡率为每日浮游植物产量的7.8 +/- 1.2％（范围为1.4至20.2％）。我们的结果表明，病毒在早春控制浮游细菌的数量和产生中起着重要作用。

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