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首页> 外文期刊>Journal of Parasitology >A NEW HEDRURID SPECIES (NEMATODA) FROM GALAXIID FISHES IN PATAGONIA (ARGENTINA) AND INFECTION OF AMPHIPODS AS INTERMEDIATE HOST
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A NEW HEDRURID SPECIES (NEMATODA) FROM GALAXIID FISHES IN PATAGONIA (ARGENTINA) AND INFECTION OF AMPHIPODS AS INTERMEDIATE HOST

机译:来自巴塔哥尼亚(阿根廷)Galalaxiid鱼类的一种新的类杆菌属(线虫)和作为中间宿主的两栖动物感染

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摘要

During a parasite survey of galaxiid fishes (Galaxiidae) from Patagonian Andean lakes, a new species of nematode, Hedruris suttonae n. sp. was collected from the stomach of the native Galaxias maculatus (Jenyns) and G. platei (Steindachner). Specimens were examined by light and scanning electron microscopy, especially head morphology, female caudal prehensile structure, and distribution of spines. The new species is distinguished by body and tail size, morphology and size of spicules, the arrangement of caudal papillae in the male, the female caudal hook, and size of eggs. Hyalella patagonica (Ortmann), a Neotropical species of Amphipoda, is reported as its natural intermediate host. Data regarding prevalence and mean intensity in the intermediate and definitive hosts are included. The diet and habitat of the hosts, the percentage of gravid females, the high values of prevalence, and mean intensity in galaxiid fishes, as well as the wide distribution of H. suttonae, collectively indicate that, in these oligotrophic Andean lakes, G. maculatus and G. platei are true definitive hosts of this nematode.
机译:在对来自巴塔哥尼亚安第斯湖的加拉西虫鱼类(加拉西科)进行的寄生虫调查中,发现了一种新的线虫,Hedruris suttonae n。 sp。从天然黄斑鱼(Jenyns)和G. Platei(Steindachner)的胃中收集。通过光镜和扫描电子显微镜检查标本,尤其是头部形态,雌性尾部尾突结构和刺的分布。新物种的特征在于其身体和尾巴的大小,针的形态和大小,雄性的尾状乳头的排列,雌性的尾状钩和卵的大小。据报道,两栖类的新热带菌Hyalella patagonica(Ortmann)是其天然的中间宿主。包括有关中型和定型宿主患病率和平均强度的数据。寄主的饮食和生境,雌性妊娠的百分比,加拉西虫鱼的高患病率和平均强度,以及沙门氏菌的广泛分布,共同表明在这些贫营养的安第斯湖泊中,G。黄斑和板蓝线虫是该线虫的真正确定宿主。

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  • 来源
    《Journal of Parasitology》 |2010年第1期|109-115|共7页
  • 作者单位

    Laboratorio de Parasitología, INIBIOMA (Universidad Nacional del Comahue-CONICET), Quintral 1250, (8400) Bariloche, Argentina nbrugni@crub.uncoma.edu.ar;

    Laboratorio de Parasitología, INIBIOMA (Universidad Nacional del Comahue-CONICET), Quintral 1250, (8400) Bariloche, Argentina nbrugni@crub.uncoma.edu.ar;

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