Life in the Mariana Trench. Snailfish sets depth record.

Life in the Mariana Trench. Snailfish sets depth record.

Life in the Mariana Trench - You Tube video
A compilation of film footage captured from the University of Aberdeen’s Hadal-Lander at depths ranging from 5000m to 10,545 m. Video © SOI/HADES/University of Aberdeen (Dr. Alan Jamieson)

Persistent organic pollutants in the deepest ocean fauna

The large fish inhabiting the shallower depth (5000 to 6500m) include rat-tails, cusk eels and eel pouts. At the mid-depths (6500 to 8000m) are the supergiant amphipods and the small pink snailfish. The fragile snailfish at 8145m is now the deepest living fish. At depths greater than 8500m, only large swarms of small scavenging amphipods are visible. The footage was taken by scientists on Schmidt Ocean Institute’s research vessel ‘Falkor’

Scientists have discovered the world’s deepest-dwelling fish during research in the depths of the Pacific. They captured video footage of a type of snailfish at depths of 8,145 metres (26,700ft). They discovered several new species on the trip to the Mariana Trench in the Pacific, as well as the first footage of a live “supergiant” amphipod. A team of marine biologists, geologists, microbiologists and geneticists made the discoveries on a 30-day expedition. The international team, which included scientists from the University of Aberdeen at Oceanlab in Newburgh, recorded the footage using the Hadal-Lander, the UK’s deepest diving vehicle. The Hadal-Lander was designed and built in Aberdeenshire. They had already discovered a new species of snailfish living between 6,000 and 8,000 metres, itself a depth record, and were excited to find a fish even deeper down.

Dr Alan Jamieson, from the University of Aberdeen, said: “This really deep fish did not look like anything we had seen before, nor does it look like anything we know of. It is unbelievably fragile, with large wing-like fins and a head resembling a cartoon dog.”

They were also pleased to capture on video the extremely rare supergiant amphipod, a large crustacean, one of which was recovered by traps off New Zealand in 2012 (see previous image).

The video footage shows the supergiants swimming, feeding and fending off potential predators with their large body size and protective tail. Dr Jamieson said: “Knowing these creatures exist is one thing, but to watch them alive in their natural habitat and interacting with other species is truly amazing. We have learned a great deal.”

The team carried out 92 deployments of deep-sampling equipment across the entire depth range of the trench, from 5,000 metres to 10,600 metres. The goal of the expedition was to characterise the environments, animals, ecological and geological processes of the deepest area of the ocean. Led by the University of Hawaii, the expedition sampled a broad spectrum of environments rather than focusing solely on the deepest point. Jeff Drazen, co-chief scientist from Hawaii, said: “Many studies have rushed to the bottom of the trench but from an ecological view that is very limiting. It’s like trying to understand a mountain ecosystem by only looking at its summit.”


On a related subject, 'it was 15 feet long, with a snout shaped like a dolphin's. This newly identified meat-eater swam the seas near the Isle of Skye in the time of dinosaurs'. Scientists in Scotland have found a prehistoric behemoth: a previously unknown species of reptile that lived in the oceans during the time of dinosaurs. Scientists do not believe this new fossil has anything to do with the Loch Ness Monster. Ancient Scottish Sea Reptile Not 'Nessie,' But Just As Cute
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Life in the Mariana Trench. Snailfish sets depth record.

Life in the Mariana Trench. Snailfish sets depth record.

Life in the Mariana Trench - You Tube video
A compilation of film footage captured from the University of Aberdeen’s Hadal-Lander at depths ranging from 5000m to 10,545 m. Video © SOI/HADES/University of Aberdeen (Dr. Alan Jamieson)

Persistent organic pollutants in the deepest ocean fauna

The large fish inhabiting the shallower depth (5000 to 6500m) include rat-tails, cusk eels and eel pouts. At the mid-depths (6500 to 8000m) are the supergiant amphipods and the small pink snailfish. The fragile snailfish at 8145m is now the deepest living fish. At depths greater than 8500m, only large swarms of small scavenging amphipods are visible. The footage was taken by scientists on Schmidt Ocean Institute’s research vessel ‘Falkor’

Scientists have discovered the world’s deepest-dwelling fish during research in the depths of the Pacific. They captured video footage of a type of snailfish at depths of 8,145 metres (26,700ft). They discovered several new species on the trip to the Mariana Trench in the Pacific, as well as the first footage of a live “supergiant” amphipod. A team of marine biologists, geologists, microbiologists and geneticists made the discoveries on a 30-day expedition. The international team, which included scientists from the University of Aberdeen at Oceanlab in Newburgh, recorded the footage using the Hadal-Lander, the UK’s deepest diving vehicle. The Hadal-Lander was designed and built in Aberdeenshire. They had already discovered a new species of snailfish living between 6,000 and 8,000 metres, itself a depth record, and were excited to find a fish even deeper down.

Dr Alan Jamieson, from the University of Aberdeen, said: “This really deep fish did not look like anything we had seen before, nor does it look like anything we know of. It is unbelievably fragile, with large wing-like fins and a head resembling a cartoon dog.”

They were also pleased to capture on video the extremely rare supergiant amphipod, a large crustacean, one of which was recovered by traps off New Zealand in 2012 (see previous image).

The video footage shows the supergiants swimming, feeding and fending off potential predators with their large body size and protective tail. Dr Jamieson said: “Knowing these creatures exist is one thing, but to watch them alive in their natural habitat and interacting with other species is truly amazing. We have learned a great deal.”

The team carried out 92 deployments of deep-sampling equipment across the entire depth range of the trench, from 5,000 metres to 10,600 metres. The goal of the expedition was to characterise the environments, animals, ecological and geological processes of the deepest area of the ocean. Led by the University of Hawaii, the expedition sampled a broad spectrum of environments rather than focusing solely on the deepest point. Jeff Drazen, co-chief scientist from Hawaii, said: “Many studies have rushed to the bottom of the trench but from an ecological view that is very limiting. It’s like trying to understand a mountain ecosystem by only looking at its summit.”


On a related subject, 'it was 15 feet long, with a snout shaped like a dolphin's. This newly identified meat-eater swam the seas near the Isle of Skye in the time of dinosaurs'. Scientists in Scotland have found a prehistoric behemoth: a previously unknown species of reptile that lived in the oceans during the time of dinosaurs. Scientists do not believe this new fossil has anything to do with the Loch Ness Monster. Ancient Scottish Sea Reptile Not 'Nessie,' But Just As Cute
Ref:
Date:
Location:
Photographer: