Navigation Links
Study suggests more fish than thought may thrive in the ocean's depths
Date:6/30/2010

A study of the occurrence of fishes in the ocean's deepest reachesthe hadal zone, below 6000 metershas provided evidence that some species of fishes are more numerous at such depths than experts had thought. The authors of the study, which is published in the July/August issue of BioScience, observed 10 to 20 snailfish congregating at a depth of 7703 meters around a baited video lander in the Japan Trench. The observation period lasted only five hours, so the occurrence of so many snailfish, which were of the species Pseudoliparis amblystomopsis, was a surprise. Together with a critical review of past records of fishes found at great depths, the observations suggest, however, that few species of fishes survive in the darkness of the hadal zone.

Observations at such extreme depthsfive times farther down than the oil leak in the Gulf of Mexico resulting from the Deepwater Horizon rigare technically demanding and consequently rare. The researchers who conducted the new study, Toyonobu Fujii of the University of Aberdeen, United Kingdom, and four of his colleagues, used a free-fall lander that made video recordings of an illuminated patch of the sea floor for one minute every five minutes. This enabled the scientists to distinguish at least 10 individual fish and record their behavior, which was similar to the behavior of fishes observed in 1965 from a bathyscaphe at a depth of 7300 meters in the west Atlantic. The fishes observed by Fujii and colleagues fed on crustaceans that were attracted to the mackerel bait.

How deep fish can live has long been a controversial question. Previous records of fish supposedly captured at great depth are rare and mostly based on trawls, a technique that is subject to uncertainty about exactly when a fish entered the trawl net. Fujii and colleagues remark that "current understanding of the hadal environment is inadequate." They nonetheless suggest that fish may routinely occur far deeper than previously th
'/>"/>

Contact: Jennifer Williams
jwilliams@aibs.org
202-628-1500
American Institute of Biological Sciences
Source:Eurekalert

Page: 1 2

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... tetrachloroethylene (PCE) in drinking water may increase the ... a new study led by a Boston University ... published in the journal Environmental Health , ... among 1,766 women in Cape Cod, Ma., where ... the early 1980s by the installation of vinyl-lined ...
(Date:9/30/2014)... on Earth, but when the climate changes and temperatures ... The amount of time needed to adjust to new ... in the future, reveals a new study from researchers ... journal Proceedings of the Royal Society B . ... of greenhouse gases in the atmosphere. The greenhouse effect ...
(Date:9/30/2014)... in urban and farm runoff in Hawaii is causing ... , The study, published Tuesday in the peer-reviewed ... the runoff ends up in algae that the turtles ... eyes, flippers and internal organs. , Scientists at Duke ... and Atmospheric Administration (NOAA) conducted the study to better ...
Breaking Biology News(10 mins):Contaminated water linked to pregnancy complications, BU study finds 2Shape up quickly -- applies to fish, too! 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3
... University] The cactus, stalwart of the desert, has quite ... found the world over. In a paper published in ... Academy of Sciences , Brown University biologists and colleagues have ... and 10 million years ago and coincided with species explosions ...
... asses are descendants of the original ancestors of the horse ... now in danger of extinction, largely as a direct result ... Walzer,s group has been working together with colleagues in Germany, ... currently restricted to areas in Mongolia, China, India, Iran and ...
... ... cattle in native pasturelands in Brazil,s Pantanal and Cerrado regions can benefit ... Conservation Society. , The technique, which has been adapted ... small areas for shorter periods of time before moving onto other pastures. ...
Cached Biology News:Succulent plants waited for cool, dry Earth to make their mark 2Succulent plants waited for cool, dry Earth to make their mark 3A boring life -- the Asiatic wild ass in the Mongolian Gobi 2Grazing as a conservation tool 2
(Date:9/30/2014)... , Sept. 30, 2014  RegeneRx Biopharmaceuticals, Inc. ... that it has received a Canadian Patent for ... Peptides.  This patent includes claims using thymosin beta ... actin-sequestering peptides for these purposes.  The patent will ... Biopharmaceuticals, Inc. ( www.regenerx.com ) ...
(Date:9/30/2014)... OriginOil Inc. (OTC/QB: OOIL), developer of Electro ... up large quantities of water, announced today that in ... the launch of the company's CLEAN-FRAC™ industrial grade demonstrator ... STW Resources . , Immediately upon startup, the ... and achieved a 99.8% reduction in Turbidity on flowback ...
(Date:9/30/2014)... iLab Solutions announced the results of ... which focuses on core facility operations, growth and utilization ... today. , In its 4th year running, a number ... the year-over-year decrease in the percentage of revenue that ... feeling the constraints of this trend. When asked, “What ...
(Date:9/30/2014)... MA (PRWEB) September 30, 2014 ... (UC) and collaboration company is dedicated to supporting ... connectivity needs. Julie Power, a carrier ... to ensure collaboration solutions stays connected and productive ... to the increased movement of businesses to cloud ...
Breaking Biology Technology:RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2OriginOil, Inc. Report to Shareholders: Blue Gold in West Texas 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 3SoundConnect Expands Carrier Services Division 2
... 16, Shire plc (LSE: SHP, NASDAQ: SHPGY ... U.S. District Court of the Southern District of,New York ... Shire,s patents: U.S. Patent No. 5,968,976 (",976 Patent"); U.S. ... , The lawsuit was filed ...
... and megabase capacity for the next generation sequencing ... febit today announced the official launch ... several biomedical studies of early access customers over ... and deep sequencing coverage for a broad range ...
... tester machine for medical pouches & sachets from Ireland-based manufacturer Sepha. ... ... A leak tester machine for pharmaceutical and medical pouches ... makes its U.S. market debut through U.S. distributor Service Industries ...
Cached Biology Technology:Shire Files Lawsuit Against Barr Laboratories for Infringement of FOSRENOL(R) (Lanthanum Carbonate) Patents 2Automated Sequence Capture for Next-Generation Sequencing Paves the Way for Personalized Medicine 2Automated Sequence Capture for Next-Generation Sequencing Paves the Way for Personalized Medicine 3U.S. Distributor Debut for PAKSCAN - a Pouch & Sachet Leak Tester Machine from Ireland-based Sepha Ltd. 2U.S. Distributor Debut for PAKSCAN - a Pouch & Sachet Leak Tester Machine from Ireland-based Sepha Ltd. 3
The F40 pump maintenance kit is used to service one F40 pump of a BioLogic DuoFlow workstation. It includes 2 piston seals, 4 check valves, seal removal tool, and 2 O-rings....
...
...
...
Biology Products: