Pinheiro Raul Henrique da Silva, Furtado Adriano Penha, Santos Jeannie Nascimento Dos, Giese Elane Guerreiro
Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários, Instituto de Ciências Biológicas, Universidade Federal do Pará - UFPA, Belém, PA, Brasil.
Laboratório de Biologia Celular e Helmintologia "Profa Dra Reinalda Marisa Lanfredi", Instituto de Ciências Biológicas, Universidade Federal do Pará - UFPA, Belém, PA, Brasil.
Rev Bras Parasitol Vet. 2019 Jan-Mar;28(1):12-32. doi: 10.1590/S1984-29612019002. Epub 2019 Mar 11.
In Brazil there are several records of parasitic nematodes of fish with zoonotic potential, especially those belonging to the family Anisakidae. This study considers the morphology, morphometry and prevalence of Contracaecum in Astronotus ocellatus , fish consumed in the Amazon and sold as ornamental and it also performs a retrospective analysis of the diversity of fish with larvae of Contracaecum, in studies carried out in Brazil over a period of 90 years. 40 specimens of A. ocellatus were necropsied, and the nematodes were collected and fixed in 93 parts 70% ethyl alcohol, 5 parts formaldehyde, and 2 parts glacial acetic acid (AFA) for morphological analysis under light microscopy and scanning electron microscopy. Of the 40 fish collected during this work, 27 were parasitized by Contracaecum larvae with a total intensity of 150 larvae. Retrospective analysis of intermediate host diversity for Contracaecum larvae resulted in 16 orders, 49 families, 96 genera, 140 species and a hybrid morphotype. In the retrospective study, half of the fish were from freshwater, with the order Perciformes being the most representative, with 16 families, 30 genera and 37 species. In Brazil, the occurrence of larvae of Contracaecum in fish was reported in 15 of the 26 states, with Rio de Janeiro presenting the most information regarding fish harboring Contracaecum larvae.
在巴西，有若干关于具有人畜共患病潜力的鱼类寄生线虫的记录，尤其是那些属于异尖科的线虫。本研究考察了眼点丽鱼（Astronotus ocellatus）体内对盲囊线虫（Contracaecum）的形态、形态测量及感染率，眼点丽鱼是在亚马逊地区被捕捞、作为观赏鱼出售的鱼类。同时，本研究还对巴西90年间开展的研究中带有对盲囊线虫幼虫的鱼类多样性进行了回顾性分析。对40尾眼点丽鱼进行了尸检，收集线虫并固定于93份70%乙醇、5份甲醛和2份冰醋酸（AFA）的混合液中，以便在光学显微镜和扫描电子显微镜下进行形态学分析。在本次研究收集的40条鱼中，有27条被对盲囊线虫幼虫寄生，幼虫总数为150条。对盲囊线虫幼虫中间宿主多样性的回顾性分析显示有16目、49科、96属、140种及1个杂交形态型。在回顾性研究中，半数鱼类来自淡水，鲈形目最具代表性，有16科、30属和37种。在巴西，26个州中有15个州报告了鱼类体内存在对盲囊线虫幼虫的情况，其中里约热内卢提供了关于携带对盲囊线虫幼虫鱼类的最多信息。
