Discovery of Ascomorpha ovalis (Bergendal, 1892) (Rotifera, Gastropodidae), an Indicator of Oligotrophic Conditions, in Glubokoe Lake (Moscow Region, Russia)статья
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Дата последнего поиска статьи во внешних источниках: 8 февраля 2017 г.
Аннотация:The rotifer Ascomorpha ovalis (Bergendal, 1892) was found for the first time in Glubokoe Lake
(Moscow Region) in June 2010. Long-term observations of zooplankton dating back to 1897, including our own studies starting in 2004 and carried out on a yearly basis, had never recorded this species before 2010.The density of the population was 25 ind./L in the 0–10 m water layer. In 2011–2012, the species did not disappear but was naturalized in the lake. A. ovalis is an indicator of oligotrophic conditions. The tendency for ongoing oligotrophication of the pelagial of Glubokoe Lake is supported by the penetration and naturalization of Ascomorpha ovalis during recent years and the presence of the oligotrophic rotifer Gastropus hyptopus (Ehrenberg, 1838) detected in the lake earlier.