Small but diverse: larval trematode communities in the small freshwater planorbids Gyraulus albus and Segmentina nitida (Gastropoda: Pulmonata) from the Ruhr River, Germany

Small but diverse: larval trematode communities in the small freshwater planorbids Gyraulus albus and Segmentina nitida (Gastropoda: Pulmonata) from the Ruhr River, Germany
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小而多样:来自德国鲁尔河的小型淡水平面 Gyraulus albus 和 Segmentina nitida(腹足纲:Pulmonata)中的幼虫吸虫群落

DOI:
10.1007/s00436-017-5699-0
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发表时间:
2018
影响因子:
2
通讯作者:
Selbach
Selbach
中科院分区:
医学3区
文献类型:
--
作者:
Schwelm J;Soldánová;Vyhlídalová;Selbach

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与已被充分研究的淋巴螺吸虫动物群相比,人们对温带淡水系统中小型扁螺作为吸虫的第一中间宿主的作用知之甚少。本研究旨在通过评估中欧水库系统中黄螺螺(yraulus albusus)和狭缝螺(segmentina nitidina)吸虫幼虫群落的多样性和组成,并对已发表的这些蜗牛寄主的吸虫记录进行最新的全面回顾,以缩小这一差距。共采集planorbid钉螺3691只(3270G)。阿不思·;421年代。在德国鲁尔河集水区的四个水库连续三年收集了nitida)。黄卷菊吸虫总流行率(11.7%)高于白卷菊,吸虫区系多样性(12种)高于白卷菊。吸虫流行率较低(1.7%)。在两个宿主中共鉴定出4科13种吸虫。本研究中发现的7种吸虫代表了这些寄主的新记录,和/或构成了德国这些幼虫阶段的首次记录。吸虫组成群落;albuss在不同季节和年份都很稳定,这表明吸虫在该蜗牛宿主中的生存条件很好,并且最优势的吸虫物种的最终宿主持续存在。总的来说,这项研究揭示了小型planorbid蜗牛的重要性,特别是g。作为欧洲淡水系统中物种丰富的吸虫动物群的第一个中间宿主,并强调了寄生虫对生态系统生物多样性的贡献。
In contrast to the well-studied trematode fauna of lymnaeid snails, only little is known about the role of small planorbid snails as first intermediate hosts for trematodes in temperate freshwater systems. This study aims at closing this gap by assessing the diversity and composition of larval trematode communities inGyraulus albusandSegmentina nitidain a Central European reservoir system, and by providing an updated comprehensive review of the published trematode records of these snail hosts. A total of 3691 planorbid snails (3270G. albus; 421S. nitida) was collected in three consecutive years from four reservoirs of the River Ruhr catchment area in Germany.Gyraulus albusshowed a higher overall trematode prevalence (11.7%) and more diverse trematode fauna (12 species) compared toS. nitida, which harboured three species and showed a lower trematode prevalence (1.7%). Altogether, 13 trematode species belonging to four families were identified in both hosts. Seven trematode species encountered in this study represent novel records for these hosts, and/or constitute first records of these larval stages from Germany. Trematode component communities inG. albuswere stable across seasons and years, indicating excellent conditions for trematodes in this snail host and the continuous presence of the final hosts of the most dominant trematode species. Overall, this study reveals the importance of small planorbid snails, in particularG. albus, as first intermediate hosts for a species-rich trematode fauna in European freshwater systems, and highlights the parasites’ contribution to the ecosystem’s biodiversity.
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