欧洲第一个确认的绿剑尾鱼种群(Xiphophorus hellerii Heckel, 1848)

IF 1.6 3区环境科学与生态学 Q3 FISHERIES

Knowledge and Management of Aquatic Ecosystems Pub Date : 2021-01-01 DOI:10.1051/kmae/2021031

Pencho G. Pandakov, Zhivko Barzov, Radoslav Moldovanski, Helena Huđek

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引用次数: 1

摘要

绿剑尾鱼(剑尾鱼)是一种淡水和半咸水鱼，原产于北美和中美洲。它在世界各地经历了广泛的人类传播，主要是由于水族馆的放生。采集了保加利亚阿斯帕鲁霍沃地区人工养殖的暖泉绿剑尾鱼个体。利用巴尔干地区非本地淡水鱼入侵性筛选工具(FISK v2)评估了青剑尾鱼对巴尔干东部沿海淡水水体的潜在入侵风险。这项研究是第一次确认在保加利亚和欧洲分别存在一个自给自足的海氏蠓种群。气候变化和暖冬趋势是该物种适应研究温泉外温度的先决条件。因此，随着这种便利的适应，绿剑尾鱼在新栖息地定居的潜力正在增加。我们得出结论，绿剑尾鱼有成为南欧下一个新入侵物种的高风险。

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First confirmed record of an established population of green swordtail (Xiphophorus hellerii Heckel, 1848) in Europe

The green swordtail (Xiphophorus hellerii) is a freshwater and brackish water fish native to North and Central America. It experiences wide human-traced introduction around the world, mostly due to aquarium release. Individuals of the green swordtail population from the warm spring with artificial origin located in Asparuhovo district, Bulgaria, were collected. The invasiveness screening tool for non-native freshwater fishes (FISK v2) calibrated for the Balkan region was used to assess potential invasion risk of the green swordtail to the coastal freshwater bodies of the Eastern Balkans. This study is the first confirmation on an existing self-sustained population of X. hellerii in Bulgaria and respectively in Europe. Climate change and the trend of warmer winters are prerequisites for the acclimatization of this species to the temperature out of the studied thermal spring. Therefore, the potential of the green swordtail to colonise new habitats is increasing with such facilitated acclimatization. We conclude that the green swordtail poses a high risk to become the next new invasive species in Southern Europe.

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来源期刊

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

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.