Elusive deep-sea goblin shark seen alive for the primary time

The first stay observations of the uncommon and elusive goblin shark in its pure deep ocean habitat have been recorded, extending their recognized depth and geographic vary considerably.

Research by the Minderoo-UWA Deep-Sea Research Centre and the University of Hawaii at Manoa printed in Journal of Fish Biology, paperwork two stay observations of the goblin shark, Mitsukurina owstoni, within the Pacific Ocean at a seamount close to Jarvis Island, on the slope of the Tonga Trench.

Goblin sharks are generally known as “living fossils”, as they’re the one residing consultant of their household, a lineage of sharks that’s practically 125 million years previous. 

In the previous, they have been solely seen alive after being hooked on a fishing line and dropped at the floor, the place they quickly died.

Professor Alan Jamieson, Director of Minderoo-UWA Deep-Sea Research Centre and co-author of the research, documented the 2024 sighting throughout an expedition to the Tonga Trench, which befell aboard the R/V Dagon as a part of the Inkfish Open Ocean Expedition when a baited digital camera on a backside lander captured footage of a goblin shark at 1,997 metres.

“The goblin shark is a deep-sea charismatic animal, and I never thought we’d see one alive,” Professor Jamieson stated.

“It’s not solely seeing it alive that was fascinating, but additionally the actual fact the Tonga Trench goblin shark was 700 metres deeper than earlier recognized, making the deepest-known white shark.

“On that expedition we filmed over 50 days of continuous footage between depths of 800 and 10,800 metres and this observation was a little over 20 seconds long which is testament to how elusive this species is, and how special it is to have two observations in the same study.”

Lead writer Aaron Judah, from the Deep-Sea Fish Ecology Lab and Deep-Sea Animal Research Center on the University of Hawaii, stated their footage from the unnamed seamount north-west of Jarvis Island was captured in 2019 on a digital camera system on the remotely operated car Hercules at 1,237 metres.

Previously, the goblin shark was solely recognized to inhabit slim areas off the coast of the western US, Australia and Japan within the Pacific Ocean, and slim areas within the Atlantic and Indian Oceans. 

The new findings considerably lengthen the geographic vary, with each sightings within the Central Pacific.

“New discoveries like this demonstrate that there is still so much to explore in our deep ocean home,” Mr Judah stated.

“Given the newly expanded geographic range of the goblin shark, this species can be included in regional management and a nation’s biodiversity list.”

Image prime: Goblin shark captured on digital camera within the Pacific Ocean. Credit: Minderoo-UWA Deep-Sea Research Centre and Inkfish