Universidade Federal do Amapá (UNIFAP), Programa de Pós-Graduação em Ciências Ambientais (PPGCA), Rodovia Juscelino Kubitschek Km 2, 68903-419 Macapá, AP, Brazil.
Universidade Federal do Amapá (UNIFAP), Programa de Pós-Graduação em Biodiversidade Tropical (PPGBio), Rodovia Josmar Chaves Pinto, Km 2, 68903-419 Macapá, AP, Brazil.
An Acad Bras Cienc. 2024 Jul 29;96(suppl 1):e20240291. doi: 10.1590/0001-3765202420240291. eCollection 2024.
This study investigated the spatial distribution, parasite interactions, and affinities of Branchiura parasites according to macrohabitat and surface type on fish from the Araguari River, Amapá State, in the Brazilian Amazon. This study presents novel information on the interactions of branchiuran species with host fish, and how the morphology of their attachment structures is associated with different host surface morphologies, with and without scales. A total of 558 fish specimens of 26 species were collected, of which 109 fish (10 species) were parasitized by at least one branchiuran parasite; these were selected for further study. The parasites were collected from the buccal cavity, gills, fins, and integument of the host fish. Parasites with suction discs (Argulus) were mainly associated to hosts with small scales and no scales, while parasites with hooks (Dolops) were mainly associated to hosts with large scales. Overall, parasites with suction discs were more specialized per site than those with hooks.
本研究根据巴西亚马孙地区阿瓜里乌里河的鱼类的宏栖息地和表面类型，调查了 Branchiura 寄生虫的空间分布、寄生虫相互作用和亲和力。本研究提供了有关分支类物种与宿主鱼类相互作用的新信息，以及它们的附着结构的形态如何与有鳞和无鳞的不同宿主表面形态相关联。共采集了 558 条 26 种鱼类标本，其中 109 条（10 种）鱼类至少被一种 Branchiura 寄生虫寄生，这些鱼类被选为进一步研究。寄生虫从宿主的口腔、鳃、鳍和体表收集。带有吸盘的寄生虫（Argulus）主要与小鳞和无鳞的宿主有关，而带有钩的寄生虫（Dolops）主要与大鳞的宿主有关。总体而言，带吸盘的寄生虫比带钩的寄生虫在特定部位更具专化性。
