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:4/5/2017)... 2017 KEY FINDINGS The global ... a CAGR of 25.76% during the forecast period of ... factor for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is ... geography. The stem cell market of the product is ...
(Date:3/30/2017)... LOS ANGELES , March 30, 2017  On ... Hack the Genome hackathon at ... This exciting two-day competition will focus on developing health ... experience. Hack the Genome is ... has been tremendous. The world,s largest companies in the ...
(Date:3/29/2017)... CHICAGO , March 29, 2017  higi, the ... ecosystem in North America , today ... Partners and the acquisition of EveryMove. The new investment ... extensive set of tools to transform population health activities ... and lifestyle data. higi collects and secures ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... AMRI, a global contract research, ... improve patient outcomes and quality of life, will now be offering its impurity ... to new regulatory requirements for all new drug products, including the finalization of ...
(Date:10/11/2017)... NJ (PRWEB) , ... October 11, 2017 , ... Personal eye wash is a basic ... one eye at a time. So which eye do you rinse first if a dangerous ... have Plum Duo Eye Wash with its unique dual eye piece. , “Whether ...
(Date:10/11/2017)... the Netherlands and LAGUNA HILLS, Calif. ... The Institute of Cancer Research, London ... use MMprofilerâ„¢ with SKY92, SkylineDx,s prognostic tool to risk-stratify patients ... trial known as MUK nine . The University of ... trial, which is partly funded by Myeloma UK, and ICR ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking events ... announced today. The bold new look is part of a transformation to increase ... a significant growth period. , It will also expand its service offering from its ...
Breaking Biology Technology: