单体节绦虫（鲤蠢目）是养殖鱼类非常重要的一类寄生虫。我国鱼类寄生鲤蠢目绦虫具有较高的物种多样性，然而却一直缺乏详细的调查和系统分类研究。本项目拟通过对主要流域鱼类寄生绦虫区系的调查，认识和掌握我国鲤蠢目绦虫物种多样性；通过形态观察和分子生物学分析，发现和记录鲤蠢目绦虫中未知新种类，对此前分类中存在的问题进行梳理和探讨；通过系统发育分析阐明各类群间的亲缘关系，探讨和修订鲤蠢目绦虫分类系统；揭示广布绦虫种类的系统地理分布格局和遗传多样性。项目的研究结果将为寄生虫学研究和水产动物病害防治提供重要的基础资料。

China is zoogeographically remarkable area where the Palaearctic and Oriental faunas come into contact. There is high species diversity in freshwater fish and fish-parasitic tapeworm, but fauna investigation,taxonomical and phylogenetic relationships researches on the parasites are relatively limited. Validity of numerous taxa with incorrect fixation or insufficient description is still questionable. The project aims to re-assess fish-parasitic tapeworm diversity and phylogenetic relationship of Chinese endemic tapeworms in order Caryophyllidea with morphological, ultrastructural and molecular examinations of new, freshly collected specimens, and to elucidate the phylogeographic pattern and mico-evolution of the wide distributed tapeworm species. The results of this project will provide valuable information in terms of parasitology and fish pathology.