A joint scientific expedition between the University of Western Australia (UWA) and the Tokyo University of Marine Science has caught fish at a depth of over 8,000 metres for the first time ever. The two-month voyage was part of a 10-year study into the deepest fish population on the planet. The expedition used traps to catch two snailfish of the Pseudoliparis belyaevi species in the Japan Trench, south of Japan. Remotely operated cameras were also used to record an unknown species of snailfish swimming at a depth of 8,336 metres in the Izu-Ogasawara Trench off southern Japan. Professor Alan Jamieson, founder of the Minderoo-UWA Deep Sea Research Centre, said that the Japanese trenches were incredible places to explore and were rich in life, even at the bottom. He added that more resources should be put into understanding the deep sea and how it works.