Gill metazoan parasites of the spotted goatfish Pseudupeneus maculatus (Ostheichthyes: Mullidae) from the Coast of Pernambuco, northeastern Brazil

Abstract This study evaluated the parasite fauna on the gills of spotted goatfish Pseudupeneus maculatus captured in the dry and rainy seasons in the coast of the State of Pernambuco, Brazil. Eight parasite species were identified belonging to the following taxa: Monogenea (Haliotrema caraïbensis, Haliotrema caballeroi and Haliotrema golvani); Crustacea (Rocinela signata, Hamaticolax scutigerulus and Caligidae gen. sp.) and Cestoda (Nybelinia indica and Pseudolacistorhynchus noodti). The most prevalent parasites were: Monogenea (100%), H. scutigerulus (35%), N. indica (11.7%), R. signata (8.3%), Caligidae gen. sp. (3.33%) and P. noodti (0.83%). Values of infestation are compared to other studies, and the uncommon occurrence of Trypanorhyncha on the gills suggests that the spotted goatfish could be an intermediate host for the parasite.

摘要：本研究评估了巴西伯南布哥州沿岸旱季与雨季捕获的斑拟绯鲤（Pseudupeneus maculatus）鳃部的寄生虫区系。研究共鉴定出8种寄生虫，隶属于以下类群：单殖吸虫纲（Monogenea）（加勒比海哈氏虫Haliotrema caraïbensis、卡瓦列罗哈氏虫Haliotrema caballeroi及戈尔瓦尼哈氏虫Haliotrema golvani）；甲壳动物类（Crustacea）（斑纹罗克奈尔虫Rocinela signata、盾片钩腹水虱Hamaticolax scutigerulus及颚虱科未定属种Caligidae gen. sp.）；以及绦虫纲（Cestoda）（印度尼贝尔绦虫Nybelinia indica及假狭首绦虫Pseudolacistorhynchus noodti）。感染率最高的寄生虫依次为单殖吸虫纲（100%）、盾片钩腹水虱（35%）、印度尼贝尔绦虫（11.7%）、斑纹罗克奈尔虫（8.3%）、颚虱科未定属种（3.33%）及假狭首绦虫（0.83%）。本研究将感染强度数据与其他同类研究进行了对比，鳃部锥吻绦虫目（Trypanorhyncha）的罕见检出提示，斑拟绯鲤可能为该类寄生虫的中间宿主。