Chagas de Souza Darlison, Eiras Jorge Costa, Adriano Edson Aparecido, Corrêa Lincoln Lima
Programa de Pós-graduação em Biodiversidade (PPGBEES), Instituto de Ciências e Tecnologia das Águas - ICTA, Universidade Federal do Oeste do Pará, Avenida Mendonça Furtado, nº 2946, Fátima, CEP 68040-470, Santarém, PA, Brasil.
Laboratório de Patologia Animal, Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Matosinhos, Portugal.
Ann Parasitol. 2020;66(2):217-225. doi: 10.17420/ap6602.257.
Plagioscion squamosissimus, commonly known as "white hake" or "corvina", is among the most commercially important fish in the Amazon and host to a great diversity of endoparasites. The aim of the present study was to compare the communities and infracommunities of metazoan parasites that infect P. squamosissimus in two rivers from the eastern Brazilian Amazon. A total of 75 specimens of P. squamosissimus were collected from Lago Grande do Curuái and the mouth of the Tapajós River. Morphological analysis revealed the presence of 16 parasite species, three myxozoans (Myxobolus sp., Ceratomyxa sp., Henneguya sp.), two trematodes (Austrodiplostomum compactum, Digenea gen. sp. (metacercariae), two monogeneans (Diplectanum sp., Euryhaliotrema sp.), three nematodes (Procamallanus (S.) sp., Anisakis sp., Pseudoproleptus sp. (larva), two acanthocephalans (Rhadinorhynchus plagioscionis and Neoechinorhynchus sp.), one Cestoda Ptychobothriidae gen. sp. and three crustaceans (Therodamas sp., Ergasilus sp., Dolops sp.). Six new records of parasites of P. squamosissimus were made, of which three were myxozoan species, one nematode species and two crustacean species. There were differences in the component communities of parasites of both rivers studied and these were discussed.
鳞锯盖鱼，通常被称为“白无须鳕”或“石首鱼”，是亚马逊地区最重要的商业鱼类之一，体内寄生着种类繁多的内寄生虫。本研究的目的是比较感染巴西亚马逊东部两条河流中鳞锯盖鱼的后生动物寄生虫群落和群落内小群落。总共从库鲁艾大湖和塔帕若斯河河口采集了75条鳞锯盖鱼标本。形态学分析显示存在16种寄生虫，其中三种粘孢子虫（粘体虫属、角形虫属、尾孢虫属）、两种吸虫（紧凑澳双盘吸虫、复殖吸虫属（囊蚴））、两种单殖吸虫（双盘虫属、宽鳃吸虫属）、三种线虫（前驼形线虫属（S.）、异尖线虫属、伪前突线虫属（幼虫））、两种棘头虫（鳞锯盖鱼放射吻棘头虫和新棘头虫属）、一种绦虫（褶槽绦虫科属）和三种甲壳类动物（特罗达马斯属、鱼虱属、多洛普斯属）。记录了鳞锯盖鱼寄生虫的六个新记录，其中三种是粘孢子虫、一种线虫和两种甲壳类动物。所研究的两条河流的寄生虫组成群落存在差异，并对此进行了讨论。
