Tedesco Perla, Gustinelli Andrea, Caffara Monica, Patarnello Pierpaolo, Terlizzi Antonio, Fioravanti Maria L
1 Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy.
2 Fish Pathologist, Private Expert, SIAV B, ASL Lecce, Viale Don Minzoni, 73100 Lecce, Italy.
J Parasitol. 2018 Jun;104(3):262-274. doi: 10.1645/17-115. Epub 2018 Feb 22.
Raphidascarididae are among the most abundant and widespread parasitic nematodes in the marine environment. The life-cycle of most raphidascaridid species is poorly known and information about their distribution and host range is lacking in many geographical areas, as is the taxonomy of several species. A study of larval and adult stages of Hysterothylacium fabri (Rudolphi, 1819) Deardorff and Overstreet, 1980 (Nematoda: Raphidascarididae) infecting the striped goatfish Mullus surmuletus Linnaeus, 1758 (Mullidae) and the Mediterranean stargazer Uranoscopus scaber Linnaeus, 1759 (Uranoscopidae) from the Ionian Sea (central Mediterranean) has been carried out by combining light and scanning electron microscopy observations and molecular analyses through polymerase chain reaction-restriction fragment length polymorphism and sequencing of the ITS rDNA gene. Results indicate that U. scaber and M. surmuletus represent suitable definitive and intermediate/paratenic hosts of H. fabri, respectively, in the Mediterranean and highlight the importance of combining genetic and morphological data to study the taxonomy and epidemiology of parasites widely distributed in different fish species and aquatic ecosystems.
针蛔科线虫是海洋环境中数量最多、分布最广的寄生线虫之一。大多数针蛔科物种的生命周期鲜为人知，在许多地理区域缺乏关于它们分布和宿主范围的信息，几个物种的分类学情况也是如此。通过结合光学显微镜和扫描电子显微镜观察以及聚合酶链反应-限制性片段长度多态性和ITS rDNA基因测序的分子分析，对来自爱奥尼亚海（地中海中部）感染条纹羊鱼（1758年林奈命名的Mullus surmuletus，羊鱼科）和地中海瞻星鱼（1759年林奈命名的Uranoscopus scaber，瞻星鱼科）的法氏后圆线虫（1819年鲁道夫命名，1980年迪尔多夫和奥弗斯特里特重新描述，线虫纲：针蛔科）的幼虫和成虫阶段进行了研究。结果表明，在地中海地区，瞻星鱼和条纹羊鱼分别是法氏后圆线虫合适的终末宿主和中间/转续宿主，并强调了结合遗传和形态学数据来研究广泛分布于不同鱼类物种和水生生态系统中的寄生虫的分类学和流行病学的重要性。
