Francisco Claire J, Hermida Margarida A, Santos Maria J
Universidade do Porto, Departamento de Zoologia/Antropologia, Rua Campo Alegre, s/n FC4 4169-007 Porto, Portugal.
J Parasitol. 2010 Feb;96(1):200-5. doi: 10.1645/GE-2064.1.
The primary aim of the present study was to conduct a 1-yr parasitological survey of a Mytilus galloprovincialis mussel population from the Aveiro Estuary, Portugal. In addition, we attempted to assess the host response to parasites by examining host histopathology, including an evaluation of hemocyte infiltration and parasite encapsulation. The parasites present (prevalence) included the following: 1 protozoan, Nematopsis sp. (70%); 1 turbellarian, Urastoma cyprinae, (39%); 2 trematodes, Diphtherostomum sp. (58%) and Prosorhynchus crucibulum (0.3%); 3 crustaceans, Bathylaophonte azorica (0.3%); and 2 species of Mytilicola sp. (3.5%), M. intestinalis and M. orientalis. Highest prevalences for the most abundant species occurred in summer and autumn. Histological sections of the mantle of infected mussels revealed a marked reduction in the reproductive tissue, indicating that P. crucibulum invades the mussel and promotes a severe damage to its reproductive capacity.
本研究的主要目的是对来自葡萄牙阿威罗河口的一群加利福尼亚贻贝进行为期1年的寄生虫学调查。此外，我们试图通过检查宿主组织病理学来评估宿主对寄生虫的反应，包括对血细胞浸润和寄生虫包囊化的评估。所发现的寄生虫（感染率）如下：1种原生动物，Nematopsis sp.（70%）；1种涡虫，Urastoma cyprinae（39%）；2种吸虫，Diphtherostomum sp.（58%）和Prosorhynchus crucibulum（0.3%）；3种甲壳类动物，Bathylaophonte azorica（0.3%）；以及2种Mytilicola sp.（3.5%），即M. intestinalis和M. orientalis。最常见物种的最高感染率出现在夏季和秋季。受感染贻贝外套膜的组织学切片显示生殖组织明显减少，这表明Prosorhynchus crucibulum侵入贻贝并对其生殖能力造成严重损害。
