中等水系中三种不同来源的小龙虾:一种新情况

IF 1.6 3区 环境科学与生态学 Q3 FISHERIES
G. Radtke, Rafał Bernaś, P. Dębowski, D. Ulikowski, A. Kapusta
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引用次数: 0

摘要

鉴于当代水生环境的变化,确定本地和新兴入侵小龙虾物种的分布变得越来越重要。在中欧,入侵的三种小龙虾——信号小龙虾Pacifastacus leniusculus (Dana, 1852)、棘颊小龙虾Faxonius limosus (Rafinesque, 1817)和红色沼泽小龙虾Procambarus clarki (Girard, 1852)都起源于北美。棘颊小龙虾于19世纪末首次被带到波罗的海南部海盆,随后迅速扩张。与此同时,当地的珍稀小龙虾Astacus Astacus (Linnaeus, 1758)开始消失。信号小龙虾的传播始于20世纪下半叶;然而,近年来它取得了长足的进步。对维斯瓦河下游支流Drwęca河系鱼类区系的最新研究同时揭示了小龙虾出现的新信息。分布最广的是在整个流域的十个地点发现的棘颊小龙虾。第二种外来物种,信号小龙虾,在河系上游的四个地点被发现,但没有发现混合种群。这项研究的一个特别有价值的结果是在一条小溪中发现了一处未知的高贵小龙虾。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Three crayfish species of different origin in a medium-sized river system: a new state of affairs
In view of contemporary changes in aquatic environments, determining the distribution of both native and emerging invasive crayfish species is increasingly important. In central Europe, the three invasive crayfish species of the signal crayfish Pacifastacus leniusculus (Dana, 1852), the spiny-cheek crayfish Faxonius limosus (Rafinesque, 1817) and the red swamp crayfish Procambarus clarki (Girard, 1852) are of North American origin. The spiny-cheek crayfish was first brought to the southern Baltic basin at the end of nineteenth century, and its expansion ensued rapidly. At the same time, the indigenous species of the noble crayfish Astacus astacus (Linnaeus, 1758) began to disappear. The spread of the signal crayfish started in the second half of twentieth century; however, it has progressed strongly in recent years. Latest studies of fish fauna in the Drwęca River system, a tributary of the lower Vistula River, have simultaneously revealed new information on the occurrence of crayfish. The most widespread was spiny-cheek crayfish found at ten sites throughout the river basin. The second alien species, the signal crayfish, was noted in four locations in the upper part of the river system, but no mixed populations were noted. A particularly valuable result of the study was the discovery of an unknown site of noble crayfish in a small stream.
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来源期刊
Knowledge and Management of Aquatic Ecosystems
Knowledge and Management of Aquatic Ecosystems 环境科学-海洋与淡水生物学
CiteScore
3.70
自引率
5.60%
发文量
22
审稿时长
>12 weeks
期刊介绍: Knowledge and Management of Aquatic Ecosystems (KMAE-Bulletin Français de la Pêche et de la Pisciculture since 1928) serves as a foundation for scientific advice across the broad spectrum of management and conservation issues related to freshwater ecosystems. The journal publishes articles, short communications, reviews, comments and replies that contribute to a scientific understanding of freshwater ecosystems and the impact of human activities upon these systems. Its scope includes economic, social, and public administration studies, in so far as they are directly concerned with the management of freshwater ecosystems (e.g. European Water Framework Directive, USA Clean Water Act, Canadian Water Quality Guidelines, …) and prove of general interest to freshwater specialists. Papers on insular freshwater ecosystems and on transitional waters are welcome. KMAE is not a preferred journal for taxonomical, physiological, biological, toxicological studies, unless a clear link to ecological aspects can be established. Articles with a very descriptive content can be accepted if they are part of a broader ecological context.
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