Navigation Links
New discovery -- copepods share 'diver's weight belt' technique with whales
Date:6/13/2011

A deep-sea mystery has been solved with the discovery that the tiny 3 mm long marine animals, eaten by herring, cod and mackerel, use the same buoyancy control as whales.

Reporting this week in the journal Limnology and Oceanography, researchers from British Antarctic Survey describe how Southern Ocean copepods a crustacean rich in omega-3 oil 'hibernates' in the deep ocean during winter when seas are stormy and food scarce. To reach the ocean depths the copepod's oily body fluids undergo a remarkable transformation. As the animals swim deeper, water pressure triggers a process that converts their oil to a more solid form rather like the consistency of butter. This change in density acts like a 'diver's weight belt', enabling them to be neutrally buoyant and spend winter in deep waters without wasting energy on constant swimming.

Lead author from British Antarctic Survey, Dr David Pond says, "This work is of particular value from a number of angles. Copepods may be exceptionally small creatures but they represent a vast reserve of ocean 'biomass' that provides a crucial component of the food chain.

"We've known for some time that there is a link between the copepod's large stores of energy-rich oil and 'hibernation' behaviour, but this is the first time that we've been able to understand the exact relationship between these two elements in the animal's life cycle. This discovery is a breakthrough and will help enormously with the development of simulations of their behaviour.

It's fascinating also to think that the largest and the smallest marine animals share this remarkable ability to change their body fats to adjust their buoyancy."


'/>"/>

Contact: Athena Dinar
amdi@bas.ac.uk
44-122-322-1414
British Antarctic Survey
Source:Eurekalert

Page: 1

Related biology news :

1. Cancer protein discovery may aid radiation therapy
2. Quantum sensor tracked in human cells could aid drug discovery
3. Discovery of canine hepatitis C virus opens up new doors for research on deadly human pathogen
4. Social network helps in discovery of a species of plant lice for the first time in Europe
5. Discovery of DNA silencing mechanism reveals how plants protect their genome
6. Serendipity leads to lifesaving discovery
7. Discovery demonstrates potential MS therapy could kill brain cells
8. Worm discovery could help 1 billion people worldwide
9. New discovery could green up hundreds of everyday products
10. Discovery identifies elaborate G-protein network in plants
11. A chance discovery may revolutionize hydrogen production
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... University of Chicago is creating a new professorship ... the University,s Institute for Molecular Engineering and the ... donation from the Millicent and Eugene Bell Foundation., ... reside within the Institute for Molecular Engineering. That ... project at the MBL,s Eugene Bell Center for ...
(Date:7/11/2014)... 3, 2014, Shenzhen, China Researchers from Salk Institute ... the first time evaluated the safety and reliability ... successfully developed a new method, TALEN-HDAdV, which could ... stem cell (hiPSC). This study published online in ... theoretical foundation for stem cell-based gene therapy. , ...
(Date:7/11/2014)... 11, 2014 The increased risk of kidney injury ... resuscitation fluids reflects the mass of HES molecules, according ... official journal of the International Anesthesia Research Society (IARS). ... harmful effect of HES on cultured human renal proximal ... Christian Wunder and colleagues of University Hospital Wrzburg, Austria. ...
Breaking Biology News(10 mins):New professorship in tissue engineering links molecular engineering, marine biology 2A new genome editing method brings the possibility of gene therapies closer to reality 2In lab studies, hydroxyethyl starch has direct harmful effects on kidney cells 2
... from blood poisoning? To answer this question, the doctor draws ... for testing. This takes up valuable time, which could cost ... to analyze blood there and then and have the results ... developed by scientists at the Fraunhofer Institute for Physical Measurement ...
... considering scores of applications to develop utility-scale solar power ... but too little is known to judge their likely ... the December 2011 issue of BioScience . Although ... technology, available information suggests a worrisome range of possible ...
... ARLINGTON, Va.Underscoring the importance of alternative energy for the ... Corps Base Hawaii Dec. 7 to learn about possible ... Research (ONR)-funded fuel cell vehicles (FCV) and high-efficiency trash ... the 70th anniversary of the Pearl Harbor attack, was ...
Cached Biology News:Recognizing blood poisoning quickly 2Solar power development in US Southwest could threaten wildlife 2New energy sources fuel interest from Secretary of the Navy 2
(Date:7/10/2014)... PROVO, Utah , July 10, 2014 ... genome annotation and interpretation, today announced an ... sequencing (NGS) analytics for Lineagen,s NextStep Dx ... evaluation of neurodevelopmental and neurological disorders, currently ... chromosomal microarray (CMA) testing service used by ...
(Date:7/10/2014)... --  Ceres, Inc . (Nasdaq: CERE ), ... results for the three months ended May 31, 2014 ... Ceres reported that the company and its customers have ... in Brazil, which concluded in June, despite dry and ... for part of the growing season. Yields of several ...
(Date:7/10/2014)... research may help in the fight against terrorism with ... quantities of explosives with the use of light and ... Sensors and Actuators B: Chemical , the researchers describe ... in concentrations as low as 6.3 ppm (parts per ... few minutes. , "Traditionally explosives detection has involved looking ...
(Date:7/10/2014)... journal PNAS (Proceedings of the National Academy of ... sleep deprivation have a significant effect on our metabolism. ... best time of day to test for diseases such ... effectively. , Researchers from the University of Surrey and ... between sleep deprivation, body clock disruption and metabolism, and ...
Breaking Biology Technology:Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 2Ceres Announces Fiscal Third Quarter 2014 Financial Results 3Ceres Announces Fiscal Third Quarter 2014 Financial Results 4Ceres Announces Fiscal Third Quarter 2014 Financial Results 5Ceres Announces Fiscal Third Quarter 2014 Financial Results 6Ceres Announces Fiscal Third Quarter 2014 Financial Results 7Ceres Announces Fiscal Third Quarter 2014 Financial Results 8Ceres Announces Fiscal Third Quarter 2014 Financial Results 9Detecting trace amounts of explosives with light 2Time of day crucial to accurately test for diseases, new research finds 2
... , SEATTLE, Sept. 10 Cell Therapeutics, Inc. ... the Biotech Industry conference on Wednesday, September 16, 2009, at 10:30 AM ... 16, 2009, at the Millennium Broadway Hotel in New York. The ... the presentation. The webcast can be accessed at www.celltherapeutics.com ...
... , CARLISLE, Pa., Sept. 9 Hanson ... pathogen screening, today announced the issuance of a U.S. Patent ... Microorganisms. The U.S. patent describes the Company,s method for screening ... and other plant material intended for human and animal consumption. ...
... , CAMBRIDGE, Mass., Sept. 9 ... development of next-generation cellulosic ethanol and high-performance specialty enzymes, announced that ... at 5:00 p.m. today. Verenium,s shares will continue to trade ... letter "D" added to the end of the trading symbol for ...
Cached Biology Technology:Hanson Technologies, Inc. Awarded Patent for its Advanced Food Pathogen Detection System 2Verenium 1:12 Reverse Stock Split Takes Effect 2Verenium 1:12 Reverse Stock Split Takes Effect 3Verenium 1:12 Reverse Stock Split Takes Effect 4
... Jouan MSC series of Class II ... conditions and certification to the world's ... ensures that the cabinets cannot be ... Natural lighting, low noise and arm ...
... to create the ideal environment for nucleic acid ... , Variable speed control (10 to 15 ... be for washing or hybridizing , A ... the chamber, ,is situated above a touch sensitive ...
... engineered for efficient drying down of synthetic ... cover and a post-trap with ammonia neutralizing ... of samples in ammonium hydroxide., , ... , Comes standard with ...
... MB (for aqueous, other low volatility and ... respond to specific applications of molecular biology ... of heat-labile samples. The RC systems can ... traps and a wide selection of rotors ...
Biology Products: