Torres-Martínez Aarón, Mancini Miguel, Grosman Fabian, Somoza Gustavo Manuel, Strüssmann Carlos Augusto
Laboratory of Population Biology, Department of Marine Biosciences, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Minato, Tokyo, Japan.
Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, University of South Bohemia, Vodňany, Czech Republic.
J Fish Dis. 2025 Apr;48(4):e14064. doi: 10.1111/jfd.14064. Epub 2024 Dec 13.
The pejerrey (Odontesthes bonariensis) is a key species for recreational and commercial fisheries in Argentina and holds significant aquaculture potential. It has been introduced to various countries worldwide, including Japan, where intensive aquaculture has developed. However, infectious diseases present major challenges to its cultivation, as pejerrey is susceptible to diverse pathogens, including bacteria, fungi and parasites. The primary bacterial pathogens affecting pejerrey include the genera Aeromonas, Pseudomonas and Mycobacterium (M. piscida). Fungal-like pathogens such as Saprolegnia spp., and fungal pathogens such as Achyla racemosa and Fusarium species (F. solani and F. semitectum) are also prevalent. Additionally, pejerrey hosts external and internal parasites, primarily Lernaea cyprinacea and members of the genera Cangatiella, Gyrodactylus, Contracaecum and Diplostomum. This review explores the primary infectious diseases affecting pejerrey, focusing on their symptoms, epidemiology and causative pathogens, based on literature from multiple countries and languages. Although no new diseases have emerged, we have identified persistent challenges that have remained unsolved for decades, highlighting the need for further research. Understanding the biology and epidemiology of these pathogens is crucial for expanding the aquaculture of pejerrey. Moreover, we examine how environmental changes, such as global warming, pollution and alien species, may influence disease dynamics in wild populations, stressing the need for management measures to preserve this valuable resource.
银汉鱼（Odontesthes bonariensis）是阿根廷休闲渔业和商业渔业的关键物种，具有巨大的水产养殖潜力。它已被引入世界各国，包括日本，在日本集约化水产养殖已经发展起来。然而，传染病对其养殖构成了重大挑战，因为银汉鱼易受多种病原体感染，包括细菌、真菌和寄生虫。影响银汉鱼的主要细菌病原体包括气单胞菌属、假单胞菌属和分枝杆菌属（鱼类分枝杆菌）。腐霉属等类真菌病原体，以及总状绵霉和镰刀菌属（茄病镰刀菌和半裸镰刀菌）等真菌病原体也很常见。此外，银汉鱼还寄生有体内外寄生虫，主要是鲤锚头鳋以及 Cangatiella 属、三代虫属、对盲囊线虫属和复口吸虫属的成员。本综述基于来自多个国家和多种语言的文献，探讨了影响银汉鱼的主要传染病，重点关注其症状、流行病学和致病病原体。尽管没有出现新的疾病，但我们已经确定了数十年来一直未解决的持续挑战，强调了进一步研究的必要性。了解这些病原体的生物学和流行病学对于扩大银汉鱼的水产养殖至关重要。此外，我们研究了全球变暖、污染和外来物种等环境变化如何影响野生种群中的疾病动态，强调需要采取管理措施来保护这一宝贵资源。
