Abstract:

Viral nervous necrosis (VNN), also known as Viral encephalopathy-retinopathy (VER), which is caused by betanodavirus in the nodaviridae family, is seen in both marine and freshwater fish in many parts of the world. It causes disease in larvae and juveniles, rarely in adult fish. Since it causes significant economic losses, in the recent years the research has been especially focused on the infections related to it. In this study, the presence of betanodavirus was investigated in Koi and goldfish species in aquarium facilities operating in the Antalya region. A total of 180 fish, at least 30 representing each species, were sampled from three different aquarium facilities and tested by the Real Time RT-PCR (RT-qPCR) method. At the end of the study, betanodavirus RNA was not found in any of the samples. With this study, the presence of betanodavirus in koi and goldfish species in Türkiye was investigated for the first time by the molecular techniques.

Keywords: