Abstract

The American rotifer Kellicottia bostoniensis (Rousselet, 1908) has been found in the Vygozersky Reservoir, which is currently its northernmost habitat in Russia. The Vygozersky Reservoir is located at 63° N and belongs to the White Sea catchment basin. It is a part of the White Sea–Baltic Canal. The first single individual of K. bostoniensis was noted in July 2007. In the summer of 2011, the rotifers were found in the pelagic zone of almost all lake regions, but were absent in the littoral zone and in the reservoir inflows. Rotifers occurred in all the areas of the reservoir in August 2017, and their abundance increased to 100–780 ind./m³. The abundance of aboriginal species Kellicottia longispina (Kellicott, 1879) was 5–76 times greater than that of alien rotifer species in dependence on the environmental conditions. The rotifer invasion into the Vygozersky Reservoir could have occurred by bird migrations or water transport. The reservoir is a key area along the White Sea–Baltic Sea bird migration routes. At the same time, the reservoir is a part of the White Sea–Baltic Canal with active water transport traffic.

中文翻译：

---

美国轮虫Kellicottia bostoniensis（Rousselet，1908年）（Rotifera：Brachionidae）入侵Vygozersky水库（俄罗斯卡累利阿共和国）

摘要

美国轮虫Kellicottia bostoniensis（Rousselet，1908年）已在Vygozersky水库中被发现，该水库目前是俄罗斯最北端的栖息地。Vygozersky水库位于北纬63°，属于白海集水盆地。它是白海-波罗的海运河的一部分。在2007年7月发现了波氏梭菌的第一个个体。 2011年夏天，在几乎所有湖区的中上层带都发现了轮虫，但在沿岸带和水库流入中却没有轮虫。2017年8月，轮虫在水库的所有区域都发生过，其丰度增加到100-780 ind./m ³。原住民物种Kellicottia longispina的丰富（Kellicott，1879年）是依赖于环境条件的轮虫物种的5–76倍。轮虫入侵Vygozersky水库的原因可能是鸟类迁徙或水运。该水库是白海—波罗的海鸟类迁徙路线的关键区域。同时，该水库是白海-波罗的海运河的一部分，水上运输活跃。