TRICHODINIDS (CILIOPHORA, PERITRICHIA) FROM A CALANOID COPEPOD AND CATFISH FROM SOUTH-AFRICA WITH NOTES ON HOST SPECIFICITY
TRICHODINIDS (CILIOPHORA, PERITRICHIA) FROM A CALANOID COPEPOD AND CATFISH FROM SOUTH-AFRICA WITH NOTES ON HOST SPECIFICITY
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DOI：
10.1007/bf00017668
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发表时间：
1991-02-01
影响因子：
1.3
通讯作者：
VANAS, JG
中科院分区：
文献类型：
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作者：
BASSON, L;VANAS, JG
一个案例研究中，发现了一个寄生虫感染的革胡子鲶（Burnelus，1822年）幼虫在孵化场。 在对水系中的桡足类进行检查后，发现它们也是这一物种的宿主。 经过一段时间的侵扰后，发现鲶鱼上的虫消失了，而哲水蚤桡足类的侵扰持续存在。 由此得出的结论是，虫起源于桡足类，不能建立一个可行的侵扰鲶鱼幼虫。 然而，来自同一个农场的鲶鱼鱼苗标本中，有一种不同的鲶鱼，被描述为一个新物种。 经过对已发表的资料的分析，得出结论，这些哲水蚤桡足类中的虫与来自欧亚大陆不同地区的不同作者所描述的虫属于同一种。 为了提供一个具体的识别，这是一个文献综述。 在主机特异性的讨论中，得出的结论是，所涉及的Escheridinid是特定的浮游桡足类，不能建立对鱼类的侵扰。
A case study is presented in which a trichodinid infestation was found on Clarias gariepinus (Burchell, 1822) larvae in a hatchery. Upon examination of copepods in the water system, it was found that they too hosted this trichodinid species. After following the infestation for some time it was found that the trichodinids on the catfish disappeared, whilst the infestation on the calanoid copepods persisted. It was concluded that the trichodinid originated from the copepods and could not establish a viable infestation on the catfish larvae. Specimens of catfish fry from the same farm, however, hosted a different trichodinid which is described as a new species. After analysis of published information, it was concluded that the trichodinid from these calanoid copepods belongs to the same species as described by different authors from various localities from Eurasia. In order to provide a specific identification of this trichodinid, a literature review is presented. In a discussion of host specificity, it is concluded that the trichodinid involved is specific to planktonic copepods and cannot establish an infestation on fish.