Featured Research

from universities, journals, and other organizations

Deepest-living Fishes Caught On Camera For First Time

Date:
October 8, 2008
Source:
Natural Environment Research Council (NERC)
Summary:
Scientists filming in one of the world's deepest ocean trenches have found groups of highly sociable snailfish swarming over their bait, nearly five miles beneath the surface of the Pacific Ocean. This is the first time cameras have been sent to this depth.

Scientists filming in one of the world's deepest ocean trenches have found groups of highly sociable snailfish nearly five miles beneath the surface of the Pacific Ocean.
Credit: Natural Environment Research Council and University of Aberdeen

Scientists filming in one of the world’s deepest ocean trenches have found groups of highly sociable snailfish swarming over their bait, nearly five miles (7700 metres) beneath the surface of the Pacific Ocean. This is the first time cameras have been sent to this depth.

Related Articles


‘We got some absolutely amazing footage from 7700 metres. More fish than we or anyone in the world would ever have thought possible at these depths,’ says project leader Dr Alan Jamieson of the University of Aberdeen’s Oceanlab, on board the Japanese research ship the Hakuho-Maru.

‘It’s incredible. These videos vastly exceed all our expectations from this research. We thought the deepest fishes would be motionless, solitary, fragile individuals eking out an existence in a food-sparse environment,’ says Professor Monty Priede, director of Oceanlab.

‘But these fish aren’t loners. The images show groups that are sociable and active – possibly even families – feeding on little shrimp, yet living in one of the most extreme environments on Earth.’

‘All we’ve seen before of life at this depth have been shrivelled specimens in museums. Now we have an impression of how they move and what they do. Having seen them moving so fast, snailfish seems a complete misnomer,’ he added.

Although some species of snailfish live in shallow water and even rock pools, the hadal snailfish are found exclusively below 6000 metres. Here they have to contend with total darkness, near freezing temperatures and immense water pressure – at this depth the pressure is 8,000 tonnes per square metre, equivalent to that of 1600 elephants standing on the roof of a Mini car. They feed on the thousands of tiny shrimp-like creatures that scavenge the carcasses of dead fish and detritus reaching the ocean floor.

Hadal snailfish live only in trenches around the Pacific Ocean, with different species confined to each region: the Chile and Peru trenches off South America, the Kermadec and Tonga trenches situated between Samoa and New Zealand in the South Pacific, and trenches of the North-West Pacific including the Japan trench, which Priede’s team is currently investigating.

The work is part of Oceanlab’s HADEEP project – a collaborative research programme with the University of Tokyo – devised by Priede to investigate life in the hadal region of the ocean, which is anything below 6000 metres down. The expedition, funded by the Natural Environment Research Council and the Nippon Foundation in Japan, started on 24 September and ended yesterday, 6 October.

The deep-sea equipment needed to survive the extreme pressure at these depths was designed and built by the Oceanlab team specifically for this mission. The submersible camera platforms, or ‘landers’, take five hours to reach the depths of the trenches and remain on the seafloor for two days before the signal is given for them to surface.


Story Source:

The above story is based on materials provided by Natural Environment Research Council (NERC). Note: Materials may be edited for content and length.


Cite This Page:

Natural Environment Research Council (NERC). "Deepest-living Fishes Caught On Camera For First Time." ScienceDaily. ScienceDaily, 8 October 2008. <www.sciencedaily.com/releases/2008/10/081007132552.htm>.
Natural Environment Research Council (NERC). (2008, October 8). Deepest-living Fishes Caught On Camera For First Time. ScienceDaily. Retrieved April 24, 2015 from www.sciencedaily.com/releases/2008/10/081007132552.htm
Natural Environment Research Council (NERC). "Deepest-living Fishes Caught On Camera For First Time." ScienceDaily. www.sciencedaily.com/releases/2008/10/081007132552.htm (accessed April 24, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, April 24, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dispute Flares Over Controversial Thai Temple Tigers

Dispute Flares Over Controversial Thai Temple Tigers

AFP (Apr. 24, 2015) — Thai wildlife officials begin a headcount of nearly 150 tigers kept by monks at a temple which has become the centre of a dispute over the welfare of the animals. Video provided by AFP
Powered by NewsLook.com
College Kegger: University Gets in on Craft Brew

College Kegger: University Gets in on Craft Brew

AP (Apr. 24, 2015) — Theres never been a shortage of beer on college campuses. But students at Cal Poly-Pomona are learning how to brew, serving their product to classmates, and hoping to land jobs in craft breweries when they graduate. (April 24) Video provided by AP
Powered by NewsLook.com
Cambodian Butterflies Help Villagers Make a Living

Cambodian Butterflies Help Villagers Make a Living

AFP (Apr. 24, 2015) — Cambodia&apos;s Banteay Srey Butterfly Centre is the largest of its kind in Southeast Asia. As well as educating tourists about the creatures, it also offers a source of income to nearby villagers, who are paid to breed local species. Duration: 02:04 Video provided by AFP
Powered by NewsLook.com
3D Food Printing: The Meal of the Future?

3D Food Printing: The Meal of the Future?

AP (Apr. 23, 2015) — Developers of 3D food printing hope the culinary technology will revolutionize the way we cook and eat. (April 23) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins