对我国东海和黄海近海海域所捕获的33种食用海鱼和2种软体动物,作了异尖线虫幼虫感染情况的初步调查.其中检出幼虫者计有鱼类23种207尾(合计检出率达84％)和乌贼2只,总计检出幼虫数为5864。从不同宿主检出虫体中取61条,分别测量了体长、体宽、尾长和食道及其肌性、腺性部长度。幼虫的形态学特征符合异尖线虫I型第3期幼虫. A preliminary investigation of the infection of Anaxis larvae was carried out on 33 species of marine fish and 2 species of mollusks captured in the coastal waters of the East China Sea and the Yellow Sea and 23 species of 207 species of fish (total detection rate Up to 84%) and squid 2, a total of 5864 larvae were detected. Sixty-one parasites were detected from different hosts, body length, body width, tail length and esophagus and their muscular and glandular length were measured. Morphological characteristics of larvae in line with Ischemic Line I type 3 larvae.