Macalanda Adrian Miki C, Galon Eloiza May S, Hipolito John Carlo T, Simo Nikki S, Gayares Gideon F, Bahia Rezin C, Morillo Vernadyn A, Mago Emmanuel R, Alvarez Cherry R
Department of Immunopathology and Microbiology, College of Veterinary Medicine and Biomedical Sciences, Cavite State University, Cavite, Philippines.
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
J Vet Med Sci. 2025 Feb 4;87(2):189-193. doi: 10.1292/jvms.24-0388. Epub 2024 Dec 18.
Parasitic diseases pose a threat to fisheries, negatively affecting the livelihood and food security of billions of people worldwide. Among these, parasitic isopods of fish are not well documented and studied. Thus, we examined the buccal cavity of 385 randomly selected saltwater fishes sold in a fish market in Naic, Cavite, Philippines. Here, 7/385 (1.82%) saltwater fishes, exclusively Trichiurus lepturus, harbored a parasitic isopod. Morphological observation and sequencing analysis of cytochrome c oxidase I (COI) and 16S rRNA genes confirmed the identity as Lobothorax typus. Phylogenetic tree based on these sequences showed that it is closely related to isolates from India and Japan. As such, further studies on the risk factors associated with L. typus infestation are urgently needed.
寄生虫病对渔业构成威胁，对全球数十亿人的生计和粮食安全产生负面影响。其中，鱼类寄生等足类动物的记录和研究尚不充分。因此，我们检查了在菲律宾甲米地省奈克的一个鱼市场随机挑选的385条咸水鱼的口腔。在此，7/385（1.82%）的咸水鱼，均为长尾带鱼，体内寄生有等足类寄生虫。细胞色素c氧化酶I（COI）和16S rRNA基因的形态学观察和测序分析证实其为典型叶胸等足虫。基于这些序列构建的系统发育树表明，它与来自印度和日本的分离株密切相关。因此，迫切需要进一步研究与典型叶胸等足虫感染相关的风险因素。
