Saraiva A, Felisberto P, Cruz C
Departamento de Zoologia e Antropologia, Faculdade de Ciências, Universidade do Porto, Praça Gomes Teixeira, 4099-002 Porto, Portugal.
Parasite. 2002 Mar;9(1):81-4. doi: 10.1051/parasite/200209181.
Data on the seasonal occurrence and maturation of Rhabdochona gnedini Skrjabin, 1946 in its definitive host, the barbel Barbus bocagei, from the Sousa River, in northern Portugal, are presented. Monthly samples were taken from November, 1998 to October, 1999. A total of 178 fish specimens were inspected. R. gnedini occurred with high prevalences during whole year, attaining the highest values of intensity in summer (overall prevalence and mean intensity 85% and 31, respectively). A clear annual cycle of maturation was observed; females with mature eggs occurred in spring and summer. Unidentified Rhabdochona larvae were recorded from the trichopteran larvae Hydropsyche sp. (prevalence and intensity 29% and one to 34, respectively). These larvae are presumptive intermediate host for R. gnedini.
本文呈现了1946年斯克里亚宾氏颌吻线虫（Rhabdochona gnedini）在其终末宿主——葡萄牙北部索萨河的裸腹鲃（Barbus bocagei）体内的季节性出现及成熟情况的数据。1998年11月至1999年10月期间每月采集样本。共检查了178条鱼标本。斯克里亚宾氏颌吻线虫全年感染率都很高，在夏季达到最高感染强度（总体感染率和平均感染强度分别为85%和31）。观察到明显的年度成熟周期；春季和夏季出现有成熟卵的雌虫。从毛翅目幼虫Hydropsyche sp.中记录到未鉴定的颌吻线虫幼虫（感染率和感染强度分别为29%和1至34）。这些幼虫推测是斯克里亚宾氏颌吻线虫的中间宿主。
