Host specificity of trichodinid ectoparasites of freshwater fish.
Host specificity of trichodinid ectoparasites of freshwater fish.
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DOI：
10.1016/0169-4758(87)90166-9
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发表时间：
1987-03
期刊：
影响因子：
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通讯作者：
J. V. van As;L. Basson
中科院分区：
文献类型：
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作者：
J. V. van As;L. Basson
车轮虫科的纤毛虫包括7个属，它们都是寄生虫或寄生虫-主要寄生在水生宿主上，如其他纤毛虫、腔肠动物、浮游甲壳动物、软体动物、棘皮动物、两栖动物和鱼类。虽然这个科的第一个物种，Trichodina pediculus，是从水螅收集的材料中描述的，但大多数文献都是关于鱼类特别是养殖淡水鱼的Trichodina pediculus。这些纤毛虫与鱼类的严重疾病和死亡有关，在世界各地造成严重的经济损失。尽管车轮虫科的分类混乱，但现在看来，它们分为四个不同的群体，代表了一条专门化的路线，朝向宿主鱼的更独特的生态位。机会性较强的物种，具有广泛的宿主范围，往往是较大的皮肤寄生虫，而更专业的是较小的，通常只寄生在特定宿主的鳃上。
Ciliophorans of the family Trichodinidae comprise seven genera, all of which are commensalists or parasites-mainly on aquatic hosts such as other ciliophorans, coelenterates, planctonic crustaceans, molluscs, echinoderms, amphibians and fish. Although the first species of this family, Trichodina pediculus, was described from material collected from Hydra, most literature concerns the trichodinids offish-particularly cultured freshwater fish. These ciliophorans have been implicated in severe disease and mortalities of fish, causing severe economic losses in various parts of the world. In spite of the confused taxonomy of the Trichodinidae, it now appears that they fall into four distinct groups representing a line of specialization towards a more exclusive niche on the host fish. The more opportunistic species, with a broad host range, tend to be larger skin parasites, while the more specialized are smaller and usually only parasitize the gills of their specific host.