Tecnológico Nacional de México/Instituto Tecnológico de Boca del Río, Km 12 carretera Veracruz-Córdoba, C.P. 94290, Boca del Río, Veracruz, Mexico.
Instituto de Ciencias Marinas y Pesquerías, Universidad Veracruzana, Miguel Hidalgo 616, C.P. 94290, Río Jamapa, Boca del Río, Veracruz, Mexico.
J Parasitol. 2021 Nov 1;107(6):841-845. doi: 10.1645/20-160.
A total of 1,218 helminths ascribed to 11 taxa (6 at species, 3 at generic, 1 at family, and 1 at order level) in 101 specimens of Halichoeres radiatus (Pisces: Labridae) were caught in the Veracruz Coral Reef System National Park, southern Gulf of Mexico. These helminths include 4 trematode species (3 adults and 1 metacercaria), a cestode species (larvae), 5 nematode species (2 adults and 3 larvae), and an acanthocephalan species (juvenile). Nine correspond to new host records, 2 of them are new geographic records, and 6 species were recorded with 1 helminth per infected host. The larvae of Scaphanocephalus expansus (Creplin, 1842) Jägerskiöld, 1903, and larvae of the order Tetraphyllidea were the parasites with the highest prevalence and mean intensity. Species richness (S = 11) and the Shannon-Wiener diversity index (H' = 1.1) were lower than those recorded for host-parasite communities in the locality. The fact that 10 of the total of 11 parasitic species were found in fish intestines suggests that infection is a result of host feeding habits.
在墨西哥湾南部的韦拉克鲁斯珊瑚礁系统国家公园，从 101 尾波纹唇鱼（Halichoeres radiatus）（硬骨鱼纲：隆头鱼科）中捕获了总共 1,218 条蠕虫，归属于 11 个分类群（6 个种，3 个属，1 个科和 1 个目）。这些蠕虫包括 4 种吸虫（3 种成虫和 1 种尾蚴）、1 种绦虫（幼虫）、5 种线虫（2 种成虫和 3 种幼虫）和 1 种棘头虫（幼体）。其中 9 种对应新的宿主记录，其中 2 种是新的地理记录，6 种记录为每只受感染宿主 1 种寄生虫。Scaphanocephalus expansus（Creplin，1842）Jägerskiöld，1903 的幼虫和四叶目幼虫是感染率和平均强度最高的寄生虫。物种丰富度（S=11）和香农-威纳多样性指数（H'=1.1）均低于该地区记录的宿主-寄生虫群落。在总共 11 种寄生物种中，有 10 种存在于鱼类肠道中，这表明感染是宿主摄食习惯的结果。
