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:8/29/2014)... is available in German . ... between organisms is considered the oldest form of communication. ... conspecifics, for example, the sexual attraction between males and ... and to coordinate reproductive behavior in males and females. ... of the Algarve in Faro, Portugal, and at the ...
(Date:8/29/2014)... of the Tibetan plateau -- the largest topographic anomaly ... both its profound effect on climate and its reflection ... GSA Bulletin , Katharine Huntington and colleagues employ a ... modern and fossil snail shells to investigate the uplift ... , Views range widely on the timing of surface ...
(Date:8/28/2014)... reports that an expansion of marine protected areas is ... functions. According to investigators from the Wildlife Conservation ... have focused on saving the largest numbers of species, ... key and difficult-to-replace ecological functions. , Many ... fish species that also are food for millions of ...
Breaking Biology News(10 mins):Ready for mating at the right time 2Ready for mating at the right time 3Snails tell of the rise and fall of the Tibetan Plateau 2Snails tell of the rise and fall of the Tibetan Plateau 3Snails tell of the rise and fall of the Tibetan Plateau 4Snails tell of the rise and fall of the Tibetan Plateau 5Snails tell of the rise and fall of the Tibetan Plateau 6Snails tell of the rise and fall of the Tibetan Plateau 7Study finds marine protected areas inadequate for protecting fish and ocean ecology 2
... must outwit the immune system of the host. To ... transport channel located in the bacterial membrane. In some ... enabling them to inject virulence factors directly into the ... the Federal Institute for Materials Research and Testing have ...
... Molecular Biology (ASBMB) has announced that George R. ... Clinic,s Lerner Research Institute and emeritus professor of ... recipient of the society,s 2011 Herbert Tabor/ Journal ... The lectureship recognizes outstanding lifetime scientific achievements and ...
... Researchers at Texas A&M University College of Veterinary Medicine & ... delivery of a foal using oocytes from a live mare, ... the foal highlights Texas A&M,s long tradition of leading science ... the owner of the new foal., "I,ve always liked having ...
Cached Biology News:How bacteria make syringes 2Dr. George Stark receives 2011 Herbert Tabor/Journal of Biological Chemistry Lectureship from ASBMB 2Texas A&M veterinary researchers achieve cloning first 2Texas A&M veterinary researchers achieve cloning first 3
(Date:8/29/2014)... Due to a misstatement posted by the Family ... Technology Center, LLC ( ASCTC ) was reported as an ... might benefit ALS patients. Because of ASCTC's exclusive focus ... and therapeutic applications, FRC listed ASCTC as one of several ... wish not to support research that requires the death of ...
(Date:8/28/2014)... City, CA (PRWEB) August 28, 2014 ... sanitation products for the food processing industry, is asking ... a side-by side comparison of the E2 soap they’re ... E2 Sanitizing Foam Soap . Hand hygiene is ... in the food processing environment. Six key criteria are ...
(Date:8/28/2014)... Spin-charge converters are important devices in spintronics, an ... charge of electrons but also on their spin ... transformation of electric into magnetic signals and vice ... Sinova from the Institute of Physics at Johannes ... the UK, Prague, and Japan, has for the ...
(Date:8/28/2014)... 2014   SunTrust Robinson Humphrey (STRH) ... to its equity research team in biotechnology and ... in equity research demonstrates our commitment to providing ... enhance their investment decision making," said Biff ... continue to make significant investments in differentiated content ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2A new, tunable device for spintronics 2A new, tunable device for spintronics 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... PRINCETON, N.J., Oct. 9 Orchid Cellmark Inc.,(Nasdaq: ... identity DNA testing,services, today announced the appointment of ... Officer. Mr. Smith will report directly to,Thomas A. ... Mr. Smith, age 57, brings to Orchid ...
... Enables Researchers to Identify Pathways and ... Most Relevant to Metabolomic Data, REDWOOD CITY, ... of information solutions to help life science researchers,generate ... a complete solution within Ingenuity,Pathways Analysis to help ...
... Biomedtex Inc. (Pink,Sheets: BMDX.PK) ("The Company") a ... The Company,s mission is to identify, evaluate ... and healthcare solutions, and then,seek to capture and ... For more information visit us at http://WWW.BIOMEDTEX.COM ...
Cached Biology Technology:Orchid Cellmark Appoints James F. Smith Chief Financial Officer 2Orchid Cellmark Appoints James F. Smith Chief Financial Officer 3Ingenuity Systems Launches New Metabolomics Solution Within IPA 2
... Well BAC Prep; Ideal for ... 1.5ml 2xYT cultures; Provides high-quality ... sequencing for small to large ... which minimizes shearing and improves ...
Vesicular Glutamate Transporter 2 [VGLUT2]...
Mouse monoclonal [0.N.305] to G protein alpha - BSA and Azide free ( Abpromise for all tested applications). Antigen: Partially purified G protein alpha from rat brain. Entrez GeneID: 2778 ...
XIAP Antibody...
Biology Products: