Invasion of Dreissena polymorpha (Pallas, 1771) into the Shershnevskoye Reservoir (City of Chelyabinsk)

Pub Date : 2024-03-01 DOI:10.1134/s2075111724010107

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Abstract

Compared to the data collected in 2016, pronounced changes in the malacofauna inhabiting the Shershnevskoye Reservoir (city of Chelyabinsk) were discovered in August 2022 at inshore sampling stations near the dam. Mollusks of the family Sphaeriidae have disappeared from the community of bivalves. The species Dreissena polymorpha (Pallas, 1771) of the family Dreissenidae predominated the malacofauna in 2022. Analysis of the size and age structure of the D. polymorpha population showed that the maximum age of mollusks was 5 years. The collected data indicate that D. polymorpha has successfully invaded the Shershnevskoye Reservoir in the period since 2016 and naturalized there.

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Dreissena polymorpha（Pallas，1771 年）入侵谢尔什涅夫斯科耶水库（车里雅宾斯克市）

摘要与 2016 年收集的数据相比，2022 年 8 月在大坝附近的近岸采样站发现，居住在谢尔盖耶夫斯科耶水库（车里雅宾斯克市）的孔雀鱼群发生了明显变化。双壳贝类群落中已经消失了 Sphaeriidae 科的软体动物。在 2022 年的双壳类群中，蝶形花科的 Dreissena polymorpha（Pallas，1771 年）物种占多数。对 D. polymorpha 种群大小和年龄结构的分析表明，软体动物的最大年龄为 5 岁。收集到的数据表明，自 2016 年以来，D. polymorpha 已成功入侵谢尔什涅夫斯科耶水库，并在那里归化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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