Navone G T, Sardella N H, Timi J T
Centro de Estudios Parasitológicos y de Vectores (CEPAVE)-Universidad Nacional de La Platà, Argentina.
Parasite. 1998 Jun;5(2):127-36. doi: 10.1051/parasite/1998052127.
Hysterothylacium aduncum (Rudolphi, 1802) is reported from five fishes and one invertebrate species. Third-stage larvae were found in the crustacean Themisto gaudichaudii and in mesenteries of the fishes Engraulis anchoita and Merluccius hubbsi; fourth-stage larvae were recovered from the digestive tract of M. hubbsi and Scomber japonicus and adult specimens were obtained from the stomach and intestine of M. hubbsi, S. japonicus, Genypterus blacodes and Genypterus brasiliensis. Nematodes are described, measured and illustrated. Parasitic prevalence, mean intensity and range were calculated in relation to different geographic zones, from the Argentinean-Uruguayan Common Fishing Zone to Patagonic areas. An increase of parasitism from the northern areas southwards was observed. The life-cycle of H. aduncum, involving the host species considered, is also postulated.
从五种鱼类和一种无脊椎动物物种中发现了钩状异唇线虫（Rudolphi，1802年）。在甲壳类动物高迪氏细磷虾以及鱼类秘鲁鳀和哈氏无须鳕的肠系膜中发现了第三期幼虫；从哈氏无须鳕和日本鲭的消化道中获得了第四期幼虫，并从哈氏无须鳕、日本鲭、黑鳍异鳍鱼和巴西异鳍鱼的胃和肠道中获得了成虫标本。对这些线虫进行了描述、测量和绘图。计算了从阿根廷-乌拉圭共同捕鱼区到巴塔哥尼亚地区不同地理区域的寄生率、平均感染强度和感染范围。观察到从北部地区向南寄生现象有所增加。还推测了涉及所考虑宿主物种的钩状异唇线虫的生命周期。
