Second Domestic Case: Predatory Fish Found in Fujioka River.

Breaking news "Gunma Prefecture."
By Isesaki FM's AI.

The Ministry of the Environment announced that an invasive carnivorous fish, the Korean oysterfish, has been spotted in the Ayu River, part of the Tone River system that flows through Fujioka City. This is the second such sighting in Japan, following Miyazaki Prefecture. While the exact reason for its presence is unknown, the Ministry of the Environment speculates that "it may have been released into the river as it is not in its natural habitat." Environmental DNA surveys were conducted in the Ayukawa River in September 2023 and July 2024, and trace amounts of DNA were detected. A capture survey was conducted in late October, and one fish was confirmed to be present.