Baseline histopathological survey of a recently invading island population of 'killer shrimp', Dikerogammarus villosus.
Baseline histopathological survey of a recently invading island population of 'killer shrimp', Dikerogammarus villosus.
复制标题
对最近入侵岛屿的“杀人虾”Dikerogammarus villosus 种群进行基线组织病理学调查。
DOI：
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发表时间：
2013
影响因子：
1.4
通讯作者：
G. Stentiford
中科院分区：
文献类型：
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作者：
J. Bojko;P. Stebbing;K. Bateman;J. E. Meatyard;K. Bącela;A. Dunn;G. Stentiford
Dikerogammarus villosus是一种入侵性的片足类动物，最近在英国的淡水中被发现。为了评估入侵者引入病原体的可能性，对D。对栖息在最初检测地点（Grafham Water，Cambridgeshire，UK）的绒毛状线虫种群进行了检测。从英国其他2个随后确定的种群（卡迪夫湾和诺福克布罗德）以及法国（莱茵河）和波兰（维斯瓦河）的已建立种群中采集了额外样本。这些数据揭示了一系列病原体和寄生虫。在大陆人群中发生的几种病原体在英国人群中不存在。微孢子虫寄生虫和一种新的病毒病原体是在英国没有观察到的。因此，在英国研究中心没有这些病原体可能会给D. villosus超过本地动物群，从而增加其作为入侵者的成功。比较了英国和大陆入侵群体的D. villosus提供了英国D. villosus和暗示的单点引进，而不是连续的入侵事件，如以前观察到的整个大陆入侵范围。这项基线调查提供了重要的数据，病原体和高影响力，入侵物种在英国的入侵历史早期的生物学概况。它可以被用来评估潜在的时间病原体收购的非本地入侵水生物种，并调查竞争优势放在这个入侵者由于缺乏重要的病原体经历了其本地范围内。
Dikerogammarus villosus, an invasive amphipod, has recently been detected in UK freshwaters. To assess the potential for pathogen introduction with the invader, a year-long histopathology survey of the D. villosus population inhabiting the initial site of detection (Grafham Water, Cambridgeshire, UK) was conducted. Additional samples were collected from 2 other subsequently identified populations within the UK (Cardiff Bay and Norfolk Broads), and from established populations in France (River Rhine) and Poland (River Vistula). The data revealed a range of pathogens and commensals. Several pathogens occurring within continental populations were not present within the UK populations. Microsporidian parasites and a novel viral pathogen were amongst those not observed in the UK. The absence of these pathogens at UK sites may therefore impart significant survival advantages to D. villosus over native fauna, thereby increasing its success as an invader. The contrast in pathogen profile between UK and continental-invasive populations of D. villosus provides preliminary evidence for so-called 'enemy release' in UK populations of D. villosus and is suggestive of single-point introductions, rather than continual incursion events as previously observed throughout its continental invasive range. This baseline survey provides important data on the pathogen and commensal profile of a high-impact, invasive species early in its invasion history of the UK. It can be utilised to assess potential for temporal pathogen acquisition by non-native invasive aquatic species and to investigate competitive advantages placed upon this invader due to absence of important pathogens experienced within its native range.