Navigation Links
Disappearing act of world's second largest fish explained
Date:5/10/2009

Researchers have discovered where basking sharks the world's second largest fish hide out for half of every year, according to a report published online on May 7th in Current Biology, a Cell Press publication. The discovery revises scientists' understanding of the iconic species and highlights just how little we still know about even the largest of marine animals, the researchers said.

"While commonly sighted in surface waters during summer and autumn months, the disappearance of basking sharks during winter has been a great source of debate ever since an article in 1954 suggested that they hibernate on the ocean floor during this time," said Gregory Skomal of Massachusetts Marine Fisheries. "Some 50 years later, we have helped to solve the mystery while completely re-defining the known distribution of this species."

Using new satellite-based tagging technology and a novel geolocation technique, the researchers found that basking sharks make ocean-scale migrations through tropical waters of the Atlantic Ocean during the winter, traveling at depths of 200 to 1,000 meters. Their data show that the sharks sometimes stay at those depths for weeks or even months at a time. "In doing so, they have completely avoided detection by humans for millennia," Skomal said, emphasizing that as one of the very largest of marine animals, the sharks grow to over 10 meters and weigh as much as seven metric tons.

Skomal said they were "absolutely surprised" when they first received a signal from the tagged sharks coming from the tropical waters of the western Atlantic, in the vicinity of the Caribbean and Bahamas. After all, basking sharks were always believed to be cool-water sharks, restricted to temperate regions.

Several factors had made basking sharks a challenge to study. On top of the fact that they disappear for long periods of time, they also feed exclusively on plankton. That means they can't readily be captured with tradition
'/>"/>

Contact: Cathleen Genova
cgenova@cell.com
617-397-2802
Cell Press
Source:Eurekalert

Page: 1 2

Related biology news :

1. A Great Lakes mystery: The case of the disappearing species
2. Californias wildflowers are disappearing, new book by UCR ecologist cautions
3. The best both of worlds -- how to have sex and survive
4. Quantum weirdness, parallel worlds, dinosaur poop, and the ultimate fate of the universe...
5. 60 second test could help early diagnosis of common brain diseases
6. BIO-key Reports Second Quarter 2007 Results
7. Communication Intelligence Corporation Reports Second Quarter 2007 Financial Results
8. Weight gain between first and second pregnancies associated with increased odds of male second child
9. Decisions on the second round of the Excellence Initiative announced
10. Second genetic link to weight and obesity
11. A new analysis method allows to find out the sex of the baby from the second month of pregnancy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/29/2014)... climate warms and sea ice retreats, the North is ... increasingly open water which is predicted to extend across ... century. Storms thus have the potential to create Arctic ... and unpredictable element to the region. , A University of ... the middle of the Arctic Ocean, and detected house-sized ...
(Date:7/29/2014)... journey to the edge of science, Clment Vidal takes ... Beginning and the End: Does our universe have a ... we alone in the universe? What is the role ... in science and committed to philosophical rigor, the book ... life is not an accident, but may well be ...
(Date:7/29/2014)... have developed an easier method to create DNAprotein ... involved in diagnosing diseases. , DNA linked to ... partnership that can be used in diagnostic techniques, ... tag proteins with DNA can be used ... visualisation of biological material. The method also provides ...
Breaking Biology News(10 mins):Huge waves measured for first time in Arctic Ocean 2Huge waves measured for first time in Arctic Ocean 3Book: 'The Beginning and the End' 2New method provides researchers with efficient tool for tagging proteins 2
... in the FASEB Journal ( http://www.fasebj.org ) ... because scientists have moved closer toward correcting the root ... Specifically researchers identified a protein (G6PD protein) and its ... promote the growth of cells which produce and release ...
... pregnant and looking for an excuse to eat bacon and eggs, ... January 2010 print issue of the FASEB Journal ( ... shows that choline plays a critical role in helping fetal brains ... pork, as well as chicken eggs. "Our study in ...
... 2010) Autism Speaks applauds the consensus statement and ... (GI) disorders in children with autism spectrum disorders (ASD) ... in advancing physician awareness of unique challenges in the ... to see the publication of these consensus recommendations. Autism ...
Cached Biology News:New discovery by Harvard scientists aims to correct cellular defects leading to diabetes 2Finally, an excuse for pregnant women to eat bacon and eggs 2Pediatrics GI recommendations -- first step to guidelines for children with autism 2Pediatrics GI recommendations -- first step to guidelines for children with autism 3
(Date:7/30/2014)... While administrative claims and other data ... a relatively long period of time, there has ... of these ‘big data’ for comparisons of interventions ... powerful computer technology with the plethora of data ... significant promise for identifying optimal interventions for specific ...
(Date:7/30/2014)... NY (PRWEB) July 30, 2014 July ... (Twitter: @APDN), a biotechnology firm that provides DNA-based authentication ... E. Hogan, Ph.D. Vice President of Life Sciences, a ... , Dr. Hogan will lead APDN’s drive ... business relationships with biotech and healthcare customers, provide guidance ...
(Date:7/30/2014)... JUPITER, Fla. , July 30, 2014 /PRNewswire/ ... global biotechnology company whose patented and proprietary technologies ... enzymes and other proteins for the bioenergy, bio-based ... the appointment of Thomas "Tom" Dubinski as Vice ... responsible for leading the financial and information technology ...
(Date:7/30/2014)... IL (PRWEB) July 30, 2014 ... Arun Athmanathan will present his findings on corn ... Energy conference this week in Washington, D.C. ... of Energy conference is a testament to the ... John Caupert said. “Thanks to the foresight and ...
Breaking Biology Technology:Leveraging ‘Big Data’ - Methodological Considerations in Health Services Research, New Webinar Hosted by Xtalks 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 3Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 2NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 3
... that allow nanoparticles to assemble themselves into designer materials ... of Iowa State University and the Ames Laboratory reports ... Science . Travesset, an associate professor of physics ... of Energy,s Ames Laboratory, writes in the journal,s Perspectives ...
... today announced that Jeff Liter has been appointed as ... "Jeff,s diverse background in all aspects of corporate development ... Said Matt McManus, President and CEO, PrimeraDx.  "PrimeraDx,s strategy ... Plex system in the MDx market and define ...
... from the Faculty of Biology and Biotechnology at the ... of Biological Chemistry explaining why enzymes used for ... In collaboration with researchers from Berlin, they used spectroscopic ... that lead to the inactivation of the enzyme,s iron ...
Cached Biology Technology:Iowa State, Ames Lab physicist says nanoparticle assembly is like building with LEGOs 2PrimeraDx Appoints Jeff Liter as VP of Corporate Development 2If oxygen becomes the undoing of proteins 2
Request Info...
Immunogen: Recombinant full length protein. Storage: -20 C, Avoid Freeze/Thaw Cycles...
...
... Immunogen: Synthetic peptide derived from the ... bovine Math-2. Specificity: Specific for ... Rat (positive controls: human U251 A172 ... and rat brain homogenates)Storage: Store at ...
Biology Products: