Navigation Links
Parachuting allows krill to eat and run

Antarctic researchers have recorded a novel behavior in krill that may help regulate greenhouse gases. Antarctic krill, one of the largest animal resources on Earth, parachute into the deeper layers of the ocean many times a night and sequester large amounts carbon in the process.

The work is reported by Geraint Tarling of the British Antarctic Survey and Magnus Johnson of the Scarborough Centre of Coastal Studies, University of Hull.

Krill are shrimp-like crustaceans that live in the open ocean, mainly in large swarms. They reach particularly high numbers in Antarctica, where they form the staple diet of fish, penguins, seals, and whales. Like many other small pelagic animals, they perform daily vertical migration (DVM), in which they occupy the upper ocean layers at night to eat and the deeper layers by day to hide. Previous research has shown that this behavior may be a rapid means of transporting carbon to the ocean's interior. However, the amount sequestered was not considered to be large because it was assumed that DVM happened just once every 24 hours.

In the new work, the researchers found that krill are capable of many migrations each night. What is more, the downward migration may be particularly rapid as the krill fan out their swimming legs and enter a controlled descent, akin to parachuting. The behavior is most apparent when their stomachs are full and may be an effective means of getting out of harm's way when they can eat no more. It is estimated that Antarctic krill sequester 0.02 metric gigatons of carbon per year through this behavior, equivalent to the annual carbon emissions of 35 million cars.


'"/>

Source:Cell Press


Page: 1

Related biology news :

1. Researchers find how protein allows insects to detect and respond to pheromones
2. Enzyme allows B cells to resist death, leading to leukemia
3. Tiny scaffolding allows stem cells to become working fat cells
4. Looks matter to female barn swallows
5. New law for resolution allows unprecedented sharpness in fluorescence microscopy
6. Stolen gene allows insect virus to enter cells
7. Researchers identify molecular anchor that allows bacterial invasion of central nervous system
8. Algal protein in worm neurons allows remote control of behavior by light
9. Why nerve cells work faster than the theory allows
10. Tissue engineered scaffolding allows reproduction of cartilage tissue
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/22/2016)... PROVO and SANDY, Utah ... (NSO), which operates the highest sample volume laboratory in ... Tute Genomics and UNIConnect, leaders in clinical sequencing informatics ... the launch of a project to establish the informatics ... NSO has been contracted by the ...
(Date:3/18/2016)... 18, 2016 --> ... ICT, Manned & Unmanned Vehicles, Physical infrastructure and Perimeter Surveillance ... in the border security market and the continuing migration crisis ... Europe has led visiongain to publish this ... --> defence & security companies in the ...
(Date:3/15/2016)... ALBANY, New York , March 15, 2016 ... a new market report published by Transparency Market Research "Digital ... Growth, Trends and Forecast 2015 - 2023," the global digital ... at US$ 731.9 Mn in 2014 and is forecast to ... to 2023. Growth of micro, small and medium enterprises (MSMEs) ...
Breaking Biology News(10 mins):
(Date:5/27/2016)... ... 27, 2016 , ... Weeks after hosting a carpal tunnel syndrome workshop with ... surgeon and founder of the Fitzmaurice Hand Institute, has announced the addition of MRI ... state-of-the-art technology and only 1 of about 3 currently available in the United States. ...
(Date:5/27/2016)... ... ... Doctors in Italy, Japan, the UK and the US have reached some surprising ... its link to malignant mesothelioma. Surviving Mesothelioma has just posted the details of their ... , The studies analyzed for the new report included more than 3,447 cancer patients. ...
(Date:5/27/2016)... At present, the Biotech sphere is in a ... volatility is what makes this industry interesting to consider. Here ... (NASDAQ: SNTA ), CTI BioPharma Corp. (NASDAQ: ... and Heat Biologics Inc. (NASDAQ: HTBX ). Sign ... these stocks at: http://www.activewallst.com/register/ ...
(Date:5/26/2016)... New Jersey and READING, ... Indegene ( http://www.indegene.com ), a leading ... to life science, pharmaceutical and healthcare organisations and ... of innovative scientific support throughout the product lifecycle, ... with the launch of IntraScience.      ...
Breaking Biology Technology: