Jerônimo Gabriela Tomas, Marchiori Natália da Costa, Pádua Santiago Benites de, Dias Neto José, Pilarski Fabiana, Ishikawa Márcia Mayumi, Martins Maurício Laterça
Laboratório AQUOS - Sanidade de Organismos Aquáticos, Departamento de Aquicultura, Centro de Ciências Agrárias, Universidade Federal de Santa Catarina, Florianópolis, SC, Brasil.
Rev Bras Parasitol Vet. 2012 Oct-Dec;21(4):366-71. doi: 10.1590/s1984-29612012005000008. Epub 2012 Dec 4.
Family Trichodinidae comprises ciliate protozoa distributed worldwide; they are considered some of the main parasitological agents infecting cultivated fish. However, the trichodinidae parasitizing important fish species cultured in Brazil are unknown, and more taxonomic studies on this group of parasites are required. This research morphologically characterizes Trichodina colisae Asmat & Sultana, (2005) of pacu (Piaractus mesopotamicus) and patinga hybrid (P. mesopotamicus × P. brachypomus) cultivated in the central and southeast regions of the country. Fresh assemblies were made from mucus scraped from the skin, fins and gills, fixed with methanol and, subsequently, impregnated with silver nitrate and stained with Giemsa for assessment under light microscopy. This research reports not only the second occurrence of T. colisae in the world, but also its first occurrence in South America.
三毛滴虫科包含分布于世界各地的纤毛原生动物；它们被认为是感染养殖鱼类的一些主要寄生虫。然而，寄生在巴西养殖的重要鱼类品种上的三毛滴虫科寄生虫尚不清楚，需要对这组寄生虫进行更多的分类学研究。本研究对在该国中部和东南部养殖的帕库鱼（Piaractus mesopotamicus）和帕廷加杂交鱼（P. mesopotamicus × P. brachypomus）的科利三毛滴虫（Trichodina colisae Asmat & Sultana，2005）进行了形态学特征描述。从皮肤、鳍和鳃刮取的黏液制成新鲜装片，用甲醇固定，随后用硝酸银浸染并用吉姆萨染色，以便在光学显微镜下进行评估。本研究不仅报道了科利三毛滴虫在世界上的第二次发现，也是其在南美洲的首次发现。
