【作者】 宋锐； 李文祥； 王桂堂；

【Author】 SONG Rui;LI Wenxiang;WANG Guitang;State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, the Chinese Academy of Sciences;Hunan Fisheries Science Institute;

【机构】 淡水生态与生物技术国家重点实验室中国科学院水生生物研究所； 湖南省水产科学研究所；

【摘要】 陈氏刺棘虫的主要寄生部位是幽门盲囊,也有少量寄生在肠道。陈氏刺棘虫感染率和平均丰度在崇明岛最高,分别为35.80%和1.70±4.91,鄂州江段的最低,分别为5.90%和0.06±0.24。海水和淡水生境中的陈氏刺棘虫的描述性形态特征完全一样,如体表前端至中部被有细密体棘,体后部无棘;吻钩3圈,每圈6个,每个吻钩具有基部,第一、二圈吻钩基本等大,第三圈吻钩较小;吻腺两条,圆柱状,一长一短;两个椭圆形睾丸,前后排列;粘液腺圆筒形,紧贴后睾丸,两条囊状输精管紧贴于粘液腺一侧。更多还原

【Abstract】 Acanthosentis cheni was mainly found in the pyloric caecum and small amount of these parasites was in the intestine. The prevalence and mean abundance was highest in Chongming Island, 35.80% and 1.70±4.91 respectively, lowest in Ezhou, 5.90% and 0.06±0.24 respectively. The morphological characters of A. cheni are exactly the same in the seawater and freshwater, they both have 14-21 circles of trunk spines; Proboscis hooks in 3 circles with 6 hooks in each, every hooks have roots, hooks in the first and second circles are equal, the third circle smaller; Two leminisci cylindrical, cylindrical shape, one longer and one shorter; two Oval testis, in front and back order; syncytial cement gland Cylindrical shape, Cling to the posterior testis, two Vas efferens closely attached to the syncytial cement gland.更多还原