Snailfish: Scientists Film Fish Swimming At Extraordinary Depth In Ocean

Scientists have filmed a fish swimming at an extraordinary depth in the ocean, making it the deepest observation of this nature that has ever been made.

The species – a type of snailfish of the genus Pseudoliparis – was filmed swimming at 8,336m (27,349ft).

It was filmed by an autonomous “lander” dropped into the Izu-Ogasawara Trench, south of Japan.

The lead scientist said the snailfish could be at, or very close to, the maximum depth any fish can survive.

The previous deepest fish observation was made at 8,178m, further south in the Pacific in the Mariana Trench. This discovery therefore beats the depth record by 158m.

“If this record is broken, it would only be by minute increments, potentially by just a few metres,” Prof Alan Jamieson told BBC News.

The University of Western Australia deep-sea scientist made a prediction 10 years ago that fish would likely be found as deep as 8,200m to 8,400m. A decade of investigations around the globe has confirmed this.