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调查自海洋回游于图们江的日本七鳃鳗感染异尖线虫蚴情况,结果本次剖检的210尾中感染异尖线虫蚴者35尾(16.67％),感染强度1～4条。雌性47尾中22尾感染(46.81％),雄性163尾中58尾(35.58％)感染,雌雄相比有非常显著性差异(P<0.01),可能与雌性溯河回游及入江产卵需频繁索饵积累营养有关,寄生部位以肌肉最多(54.17％),再依次为生殖腺、腹腔、肠壁、肝脏等。对日本七鳃鳗异尖线虫蚴调查在国内外为首次。图们江为异尖线虫的新分布区,日本七鳃鳗为异尖线虫的一种新中间宿主。提出了北太平洋为异尖线虫病自然疫源地,异尖线虫病为海洋自然疫源疾病。
Infection of Isthmus laevigata infected with lamprey in the Tulum River was investigated. As a result, 35 (16.67%) of the isolates of Iscaria were infected in 210 of the autopsy samples, and the infection intensity was 1 to 4. Infections were found in 22 males (46.81%) and 58 males (35.58%) in 163 males, with significant differences between males and females (P <0.01) Frequent parasitism accumulated nutrition, parasitic sites to muscle up (54.17%), followed by the gonads, abdominal cavity, intestinal wall, liver and so on. Investigation of Islettes larvae in Japanese lampill for the first time at home and abroad. The Tumen River is a new distribution area of Anisidworm, and the Jerusalem wattle is a new intermediate host of Anisakis. It is proposed that the North Pacific is a natural foci of Anisakis and the Anisakis is a natural marine epidemic disease.