首页> 外文期刊>Revue de Medecine Veterinaire >Prevalence of Anguillicoloides crassus (Nema-toda, Dracunculoidea) in wild European eels (Anguilla anguilla L.) from Mar Menor lagoon (Western Mediterranean, Spain)
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Prevalence of Anguillicoloides crassus (Nema-toda, Dracunculoidea) in wild European eels (Anguilla anguilla L.) from Mar Menor lagoon (Western Mediterranean, Spain)

机译:马尔梅纳尔泻湖(西地中海,西班牙)野生欧洲鳗鱼(安圭拉安圭拉L.)中的crassus鳗(Nema-toda,Dracunculoidea)患病率

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摘要

Anguillicoloides crassus infection in wild European eels {Anguilla anguilla) from Mar Menor, a hypersaline coastal lagoon situated on the shores of the Mediterranean in south-east Spain, was evaluated. As well, an artificial digestion is described forthe detection, isolation and counting of larval stages in the swimbladder wall. A total of 109 eels were collected between November 2008 and March 2009 and adult worms were recovered from the swimbladders of infected eels. The detected prevalence was 7.34%. Second-stage larvae (L2) numbers ranged from one to thousands per swimbladder. This developmental stage was the most prevalent parasite stage detected in infected eels. L2 were even found in eels harbouring neither pre-adult nor adult nematodes, which could indicate that infected eels are chronically infected. The lack of a suitable intermediate host for this nematode or the recent introduction of A. crassus into this environment could be the causes of the low prevalence of this parasite in eels from Mar Menor lagoon.
机译:评估了来自西班牙东南部地中海沿岸的一个高盐度沿海泻湖马尔·梅纳尔(Mar Menor)的野生欧洲鳗鱼(Anguilla anguilla)中的按蚊弯曲杆菌感染情况。同样,还描述了一种人工消化,用于检测,分离和计数泳囊壁中的幼虫阶段。在2008年11月至2009年3月之间,共收集了109条鳗鱼,并从受感染鳗鱼的泳囊中发现了成虫。检出的患病率为7.34%。第二级幼虫(L2)的数量从每个泳囊到一千个不等。这个发育阶段是感染鳗鱼中最普遍的寄生虫阶段。甚至在既没有成虫线虫也没有成虫线虫的鳗鱼中发现了L2,这可能表明感染的鳗鱼是慢性感染的。缺少适合该线虫的中间宿主,或者最近没有将crassus crassus引入该环境,这可能是该寄生虫在马尔梅纳尔泻湖鳗中低流行的原因。

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