Impact of Natural Pest on the Invasive Species Pistia stratiotes in Water Bodies nearby Kyiv

Q4 Environmental Science

Hydrobiological Journal Pub Date : 2023-01-01 DOI:10.1615/hydrobj.v59.i6.30

V. V. Trylis, V. O. Chumak

引用次数: 0

Abstract

In 2020, the mass development of the invasive species Pistia stratiotes occurred in the water bodies of the left-bank floodplain of the Dnieper River downstream Kyiv, the biomass reached 10 kg/m². In 2021, in the same water bodies its biomass was significantly lower and amounted to 6-15% of the last year's, at this most specimens were damaged by the waterlily aphid Rhophalosiphum nymphaea. They looked supressed and had the yellowed leaves. The invasion intensity reached some hundred aphids per a Pistia specimen. The extensity of infestation was uneven: from 100% to 20% in the least affected clusters. On the whole, the portion of the damaged plants was about 70% of total numbers. The waterlily aphid is a widespread species in Ukraine and is a natural enemy of Pistia, which can serve as an effective mean of its control.

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基辅附近水体中自然有害生物对入侵种层状鱼的影响

2020年，基辅下游第聂伯河左岸漫滩水体中大量出现入侵物种Pistia stratiotes ，生物量达到10 kg/;sup>2。2021年，在相同的水体中，其生物量显著降低，为6-15%去年，大部分标本被睡莲蚜虫破坏。Rhophalosiphum nymphaea。它们看起来很压抑，叶子也变黄了。入侵强度达到每年数百只蚜虫标本。侵染的范围是不均匀的:从100%到20,# 37;在受影响最小的集群中。总体而言，受损植物的比例约为70%在总数中。睡莲蚜是乌克兰广泛分布的一种蚜虫，是皮斯蒂亚蚜虫的天敌，可以作为有效的防治手段。

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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来源期刊

Hydrobiological Journal Environmental Science-Ecology

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： This journal contains translations from the premier Russian and Eastern European periodicals in aquatic biology and aquatic ecosystems, supplemented by original articles from elsewhere. The journal publishes in the area of physiology, biochemistry, systematics, ecology and conservation of freshwater fish, invertebrates, vascular plants, zoo- and phytoplankton, as well as freshwater quality and toxicology. While most of the papers deal with inland waters, the journal also publishes articles reporting on expeditionary work, especially the Antarctic and tropical seas. Hydrobiological Journal is valuable to freshwater and marine biologists and chemists, limnologists, environmental scientists, oceanographers, and toxicologists.