Which fish species is commonly affected by furunculosis caused by Aeromonas salmonicida?

Furunculosis is a serious bacterial disease caused by Aeromonas salmonicida, and it primarily affects species within the salmon family. Trout, including several species like brown trout and rainbow trout, are particularly susceptible to this infection. The disease is characterized by the formation of lesions or "furuncles", which can lead to severe health issues, including systemic infections and significant mortality if left untreated.

This pathogen thrives in stressed or compromised environments, often linked to poor water quality or overcrowding. In trout, the clinical signs of furunculosis can include lethargy, erratic swimming, and visible skin lesions, which can ultimately lead to fish loss. The disease is also a major concern in fish farms and aquaculture, where trout are commonly raised, making understanding and managing this threat essential for fish health professionals.

While other fish species listed may face various health challenges, they are not as commonly associated with furunculosis as trout are. Thus, the distinction of trout as the primary fish affected by this condition highlights the significant impact of Aeromonas salmonicida on this particular species.