National University Corporation Tokyo University of Marine Science and Technology (hereinafter referred to as "Tokyo University of Marine Science and Technology") will conduct research on four ultra-deep-sea trenches around Japan, including the epicenter of the Great East Japan Earthquake, from August 4 to September 8, 5. In order to scientifically investigate this, we conducted 9 dive surveys and 19 lander observations by manned submersibles over a period of 4 months. The image of Snailfish was captured by the Lander camera at the depth of 7m in the Ogasawara Trench on August 64th.It was certified by Guinness World Records as the video of the fish found in the deepest part of the world, and was awarded an official certificate on April 8, 15.

　Professor Alan Jamieson of the University of Western Australia's Center for Deep Sea Research was the principal investigator of this survey, while Hiroshi Kitazato, a postdoctoral researcher of Tokyo University of Marine Science and Technology, was the co-principal researcher on the Japanese side. A group consisting of researchers from many organizations and countries, including the University of Australia, Japan Agency for Marine-Earth Science and Technology, Nagoya University, Niigata University, the University of Tokyo, and the University of Southern Denmark, will conduct a voyage to the Pacific Ring of Fire 2022 by Pressure Drop. Ring of Fire 2022 Japan Expedition)”.In addition to discovering the snailfish, which was certified as a Guinness World Record, we also explored the diversity of organisms living in the ultra-deep sea near Japan, the varied topography, and the dynamics seen in the trench axis due to crustal movements such as the Great East Japan Earthquake. It was a survey that made various new discoveries, such as geological diversity.

　The discovery of Snailfish has contributed to the long-term research results of Professor Alan Jamieson of the University of Western Australia Deep Sea Research Center.

The deepest fish from the Izu-Ogasawara Trench, Japan -Ring of Fire 2022 Expedition to the Japanese hadal Trench-.pdf

From left: President Izeki, Guinness World Records Japan Representative Ishikawa, Professor Alan J. Jamieson, Director of the University of Western Australia Deep Sea Research Center, Dr. Kitasato, University of Western Australia, Counselor Pitt, Australian Embassy (education and research)