Navigation Links
Blue whale-sized mouthfuls make foraging super efficient
Date:12/9/2010

ticing that the whales' mouths inflated almost like a parachute as they engulfed the krill, Goldbogen tracked down parachute aerodynamics expert Jean Potvin to help them build a mathematical model to calculate the forces acting on the whales as they lunged. With Potvin on the team, they were able to calculate that the whales used between 3226 kJ of energy during each lunge. But how did this compare with the amount of energy that the whales could extract from each gigantic mouthful of krill?

Goldbogen estimated the volume of the whales' mouths by searching the whaling literature for morphological data and teamed up with paleontologist Nick Pyenson to measure the size of blue whale jaw bones in several natural history museums. He also obtained krill density values from the literature which are probably on the low side. Then he calculated the volume of water and amount of krill that a whale could engulf and found that the whales could consume anything from 34,776kJ up to an unprecedented 1,912,680kJ from a single mouthful of krill, providing as much as 240 times as much energy as the animals used in a single lunge. And when the team calculated the amount of energy that a whale could take on board during a dive, they found that each foraging dive could provide 90 times as much energy as they used.

Shadwick admits that he was initially surprised that the whales' foraging dives were so efficient. 'We went over the numbers a lot,' he remembers, but then he and Goldbogen realised that the whales' immense efficiency makes sense. 'The key to this is the size factor because they can engulf such a large volume with so much food in it that it really pays off,' says Shadwick.


'/>"/>

Contact: Kathryn Knight
kathryn@biologists.com
44-078-763-44333
The Company of Biologists
Source:Eurekalert

Page: 1 2

Related biology news :

1. Human cells exhibit foraging behavior like amoebae and bacteria
2. Dining out in an ocean of plastic: How foraging albatrosses put plastic on the menu
3. Bumblebees learn the sweet smell of foraging success
4. Argonne scientists awarded supercomputing time to enable scientific breakthroughs
5. Super-sized world: Conference addresses global obesity epidemic, explores policies, interventions
6. New standard proposed for supercomputing
7. Study shows young, unsupervised children most at risk for dog bites
8. Supercomputer makes it possible to develop a Brazilian Global Climate System Model
9. NOAA, Wisconsin officials designate 17,000-acre research reserve on Lake Superior
10. Behind-the-scenes advances underpin new super-strong plastics
11. San Diego Supercomputer Center participates in first Census of Marine Life
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/19/2015)... Conn. , March 19, 2015  NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, announces ... in a news clip that aired this week on ... ) . In a segment "The Next Great ... wallet ,a new way to pay, and ,a really big ...
(Date:3/16/2015)... HANOVER, Germany , March 16, 2015 /PRNewswire/ ... DERMALOG Identification Systems GmbH will present groundbreaking innovations ... Hanover, Germany . ... DERMALOG,s latest biometric innovation is well at ... the next generation e-gate made in ...
(Date:3/11/2015)... , Mar. 11, 2015 Research and Markets ... of the "Access Control Market by Product, Application ... 2020" report to their offering. , ... expected to reach $10.4 billion by 2020, with an ... market report covers the products types such as contact ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3Global Access Control (Cards & Readers, Biometrics, Controllers, Management Software) Market 2015-2020 - Analysis of the $10 Billion Market 2
... The world,s smallest species of snake, with adults averaging just ... Caribbean island of Barbados. The species -- which is ... rest comfortably on a U.S. quarter --was discovered by Blair ... his colleagues also are the discoverers of the world,s smallest ...
... last decade, childhood obesity has grown into an epidemic, ... recommendations that pediatricians check toddlers for elevated cholesterol. ... intervene. A study presented at a pediatric research ... as early as age two, when children reach a ...
... history of science and technology, there is an ... developments converge that make it possible to recognize ... biomechanics and astrobiology with more recent developments of ... now well established in the lexicon of modern ...
Cached Biology News:World's smallest snake found in Barbados 2World's smallest snake found in Barbados 32 years old -- a childhood obesity tipping point? 2The emerging scientific discipline of aeroecology 2
(Date:3/27/2015)... London, UK (PRWEB) March 27, 2015 ... on the back of the recession and high prices ... the market has recovered and keeps on gaining momentum ... of NPK stands at more than 100,000 thousand tonnes. ... post-crisis years. Meantime, the global capacity rocketed during 2012-2013, ...
(Date:3/27/2015)...  Neogen Corporation (NASDAQ: NEOG ) announced today ... plan in accordance with Securities and Exchange Commission rule ... Neogen Corporation, is a minority owner of this entity ... Herbert does not have control of this entity, ... only for a portion of the shares owned by ...
(Date:3/27/2015)... -- Peter Walter was chosen as winner of the Vilcek ... how proteins are transported between cellular compartments and for ... use to handle stress tied to the aggregation of ... at the University of California, San Francisco. His research ... diseases related to defective protein folding and transport. ...
(Date:3/27/2015)... , March 27, 2015 WuXi ... leading open-access R&D capability and technology platform company ... industries, announced today that an Investigational New Drug ... antibody for rheumatoid arthritis has been accepted for ... (CFDA).  In September 2012, MedImmune, ...
Breaking Biology Technology:World NPK Fertilizers Market Keeps On Gaining Momentum, According to BAC Reports Study Available at MarketPublishers.com 2World NPK Fertilizers Market Keeps On Gaining Momentum, According to BAC Reports Study Available at MarketPublishers.com 3Neogen CEO adopts 10b5-1 Trading Plan 2German-born cell biologist Peter Walter wins the 2015 Vilcek Prize in Biomedical Science 2German-born cell biologist Peter Walter wins the 2015 Vilcek Prize in Biomedical Science 3Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 3
... Uterine fibroids affect more than 30% of American women. ... require fibroid treatment . Uterine fibroids treatment ... cause pressure on other organs (such as the bladder), grow ... fibroids symptoms usually cause heavy or abnormal bleeding and discomfort, ...
... Pepscan Therapeutics Announces Establishment of Scientific Advisory Board -- LELYSTAD, The Netherlands, September 28, 2010 ... ... lpUnit=,PRN,; --> ... { var s = ,; var first_result; // Results are keyed by longUrl, so we need to ...
... to Push Scientific Search and Discovery to the... -- AMSTERDAM, September 28, 2010 ... ... --> ... s = ,; var first_result; // Results are keyed by longUrl, so we need to grab the ...
Cached Biology Technology:Dr. Ramin Mirhashemi, MD of Gynecological Oncology Associates Discusses Uterine Fibroid Treatment with da Vinci Robotic Hysterectomy Surgery 2Pepscan Therapeutics Announces Establishment of Scientific Advisory Board 2Pepscan Therapeutics Announces Establishment of Scientific Advisory Board 3Pepscan Therapeutics Announces Establishment of Scientific Advisory Board 4Pepscan Therapeutics Announces Establishment of Scientific Advisory Board 5Pepscan Therapeutics Announces Establishment of Scientific Advisory Board 6Pepscan Therapeutics Announces Establishment of Scientific Advisory Board 7Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 2Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 3Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 4Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 5Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 6Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 7Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 8Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 9Elsevier Survey Reveals Researchers Ready to Push Scientific Search and Discovery to the Next Level 10
Synaptic Vesicle I Sampler Kit 10g each...
Handles samples from from 75l to 150l...
... Solid phase reagent ... purification; Easy & unique ... Compatible with detergents and ... & recover non-envelop viruses ...
Mouse monoclonal [N7519] to NR0B2 ( Abpromise for all tested applications). Antigen: E.coli expressed recombinant full length protein (Human) NR0B2 Entrez Gene ID: 8431 Swiss Protein ID: ...
Biology Products: