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首页> 外文期刊>Research Journal of Fisheries and Hydrobiology >Leech ( Hirudo verbana Carena 1820)
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Leech ( Hirudo verbana Carena 1820)

机译：水（Hirudo verbana Carena 1820）

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摘要

Adult medicinal leeches (Hirudo verbana) were obtained from a commercial leech farm. Thefeeding strategies of hungry leeches were analysed on representative individuals kept in aquaria. As hostorganisms, cane toads (Bufo marinus) and Oriental fire-bellied toads (Bombina orientalis) were selectedbecause these amphibians have not yet been experimentally exposed to H. verbana and are known toprotect themselves by poisonous secretions. The leeches rapidly attached to the toads, explored the bodyand sucked blood from unprotected regions (feet, belly). Large cane toads survived these attacks, but themuch smaller host organisms (B. orientalis) were killed. The leeches also attacked dead amphibians bycreeping into the body of the host and sucking blood from the interior organs. Hungry two-eyed flatleeches (Helobdella stagnalis ) rapidly attached to the body of satiated medicinal leeches. However, theydid not suck blood, as reported in the literature. It follows that only the first stage of hyperparasitism (oneparasite feeding on a second parasite) occurred in the leech population investigated here.
机译：成年药用水ches（Hirudo verbana）是从商业水le养殖场获得的。分析了水族箱中代表性个体的饥饿水of的喂养策略。选择了甘蔗蟾蜍（Bufo marinus）和东方火腹蟾蜍（Bombina Orientalis）作为宿主生物，因为这些两栖动物尚未在实验中暴露于马鞭草，并已知通过有毒的分泌物来保护自己。水迅速附着在蟾蜍身上，探索了身体，并从不受保护的区域（脚，腹部）吸了血。大型蟾蜍蟾蜍在这些袭击中幸存下来，但杀死了许多较小的寄主生物（东方芽孢杆菌）。水lee还爬入宿主体内并从内部器官中吸取血液，从而攻击了死去的两栖动物。饥饿的两眼扁lee（Helobdella stagnalis）迅速附着在饱足的药用水身上。但是，正如文献报道的那样，他们没有吸血。因此，在这里调查的水ech种群中只有第一阶段高寄生虫（第二寄生虫为单寄生虫饲养）。

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