Salas-Villalobos Shirley S, Violante-Gonzalez Juan, Mendoza-Franco Edgar F, Monks Scott, Rojas-Herrera Agustin A, Flores-Rodriguez Pedro, Rosas-Acevedo Jose Luis, Gallegos-Navarro Yesenia, Santamaria-Miranda Apolinar
Centro de Ciencias de Desarrollo Regional, Universidad Autonoma de Guerrero, Acapulco, Guerrero, Mexico.
Facultad de Ecologia Marina, Universidad Autonoma de Guerrero, Acapulco, Guerrero, Mexico.
Folia Parasitol (Praha). 2025 Apr 7;72:2025.012. doi: 10.14411/fp.2025.012.
In total 949 specimens of Trachinotus rhodopus (Gill) were collected over a 11-year period (from June 2013 to February 2024) from Acapulco Bay, Mexico. Parasite communities in T. rhodopus were quantified and analysed to explore two hypotheses related to their parasite species richness and diversity associated with the bentho-demersal and pelagic habits, and effects of the climatic fluctuations. Thirty-two metazoan parasite taxa/species were identified: three species of 'Monogenea', 14 Digenea, one Aspidogastrea, one Acanthocephala, two Cestoda, three Nematoda and eight Crustacea. The digeneans and copepods were the best represented groups. The component parasite communities were characterised by the numerical dominance of the acanthocephalan Rhadinorhynchus sp. Species richness (15-24 species) was similar to that reported for other species of carangid fish, but the richness of the digeneans was significantly higher. The parasite communities of T. rhodopus exhibited high variability in species composition, suggesting that each species of parasite may respond differently to environmental changes. However, the species richness and diversity were fairly stable over time. Climatic events of La Niña and El Niño probably generated notable changes in the structure of local food webs, thus indirectly influencing the transmission rates of several endoparasite species.
在11年期间（从2013年6月到2024年2月），从墨西哥阿卡普尔科湾总共收集了949个红鳍鲹（Trachinotus rhodopus，吉尔）标本。对红鳍鲹的寄生虫群落进行了量化和分析，以探讨两个假设，即与它们的底栖-中上层习性相关的寄生虫物种丰富度和多样性，以及气候波动的影响。鉴定出32种后生动物寄生虫分类单元/物种：3种单殖吸虫、14种复殖吸虫、1种盾腹吸虫、1种棘头虫、2种绦虫、3种线虫和8种甲壳动物。复殖吸虫和桡足类是占比最大的类群。组成寄生虫群落的特征是棘头虫类的红棘吻虫属（Rhadinorhynchus sp.）在数量上占优势。物种丰富度（15 - 24种）与其他鲹科鱼类报道的相似，但复殖吸虫的丰富度明显更高。红鳍鲹的寄生虫群落物种组成表现出高度变异性，这表明每种寄生虫可能对环境变化有不同的反应。然而，物种丰富度和多样性随时间相当稳定。拉尼娜和厄尔尼诺气候事件可能导致当地食物网结构发生显著变化，从而间接影响几种体内寄生虫物种的传播率。
