Navigation Links
Tags reveal white sharks have neighborhoods in the north Pacific, say Stanford researchers
Date:11/3/2009

The white shark may be the ultimate loner of the ocean, cruising thousands of miles in a solitary trek, but a team of researchers has discovered that the sharks have maintained such a consistent pattern of migration that over tens of thousands of years the white sharks in the northeastern Pacific Ocean have separated themselves into a population genetically distinct from sharks elsewhere in the world.

"White sharks are a large, highly mobile species," said Salvador Jorgensen, a postdoctoral scholar at Stanford's Hopkins Marine Station. "They can go just about anywhere they want in the ocean, so it's really surprising that their migratory behaviors lead to the formation of isolated populations."

Scientists with the Tagging of Pacific Predators (TOPP) program combined satellite tagging, passive acoustic monitoring and genetic tags to study white sharks (Carcharodon carcharias) popularly known as great white sharks in the North Pacific. The team consisted of researchers from Stanford University, University of California-Davis, Point Reyes Bird Observatory and the Pelagic Shark Research Foundation, and the details of their study are to be published online Nov. 3 by the Proceedings of the Royal Society B.

The fact that the northeastern Pacific white sharks undergo such a consistent, large-scale migration, and that they are all closely related and distinct from other known white shark populations, suggests that it is possible to conduct long-term population assessment and monitoring of these animals.

Barbara Block, professor of marine sciences at Stanford and a coauthor of the paper, said, "Catastrophic loss of large oceanic predators is occurring across many ecosystems. The white sharks' predictable movement patterns in the northeastern Pacific provide us with a super opportunity to establish the census numbers and monitor these unique populations. This can help us ensure their protection for future generations."

'/>"/>
Contact: Louis Bergeron
louisb3@stanford.edu
650-725-1944
Stanford University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. $15 million stimulus award creates national consortium for revealing scientific resources
2. Inconspicuous leaf beetles reveal environments role in formation of new species
3. New study reveals first ever method to genetically identify all 8 tuna species
4. Migratory route of Eleonoras falcon revealed for first time
5. The food-energy cellular connection revealed
6. Banded rocks reveal early Earth conditions, changes
7. UT Knoxville and ORNL researchers reveal key to how bacteria clear mercury pollution
8. Researchers go underground to reveal 850 new species
9. Mechanism related to the onset of various genetic diseases revealed
10. Evolution coup: Study reveals how plants protect their genes
11. Genomes reveal bacterial lifestyles: Research
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tags reveal white sharks have neighborhoods in the north Pacific, say Stanford researchers
(Date:9/30/2014)... the environmental effects of moorland burning is published today ... with the aim of relieving tensions on both sides ... EMBER (Effects of Moorland Burning on the Ecohydrology of ... moorland, which is practised predominantly to support red grouse ... peat hydrology, peat chemistry and physical properties, river water ...
(Date:9/30/2014)... The most comprehensive assessment conducted by the Ocean ... out of 100 in overall health. In addition, ... Antarctic and the 15 ocean regions beyond national ... maintaining a healthy climate, safeguarding biodiversity and providing ... update of the index, a partnership led by ...
(Date:9/30/2014)... Calif. The National Institutes of Health (NIH) ... today to develop an electrode array system that ... brain works through unprecedented resolution and scale. , ... to support President Obama,s BRAIN (Brain Research ... research effort to revolutionize our understanding of the ...
Breaking Biology News(10 mins):Grouse moor burning causes widespread environmental changes 2Rating the planet's oceans 2Rating the planet's oceans 3NIH taps lab to develop sophisticated electrode array system to monitor brain act 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 3
... (ODS) at the National Institutes of Health (NIH) announces ... Bibliography of Significant Advances in Dietary Supplement Research. The ... by government, industry, and academic institutions, as well as ... of laboratory, human studies, and observational studies in the ...
... powerful antioxidant in green tea may prevent or delay ... Georgia researchers say. Researchers were testing EGCG, green ... 1 diabetes and primary Sjogren,s syndrome, which damages moisture-producing ... study focused on Sjogren,s syndrome, so learning that EGCG ...
... Washington, DCGeorgetown University Medical Center and Oak ... between the institutions that formalizes their research ... researchparticularly in the areas of structural biology, ... biology. The Comprehensive Research and Development ...
Cached Biology News:Annual Bibliography of Significant Advances in Dietary Supplement Research 2007 2Green tea may delay onset of type 1 diabetes 2Green tea may delay onset of type 1 diabetes 3GUMC and Oak Ridge National Labs announce unique research partnership 2GUMC and Oak Ridge National Labs announce unique research partnership 3
(Date:10/1/2014)... San Francisco, California (PRWEB) October 01, 2014 ... grant from the National Science Foundation to expand their ... approaches to build and modify DNA. The Small Business ... help commercialize the “j5” technology under exclusive license from ... the Joint BioEnergy Institute , an LBNL laboratory ...
(Date:9/30/2014)... 2014 Applying a well-known optical phenomenon called ... University has demonstrated the ability to "paint" ultra-thin ... holds promise for making future, flexible electronic devices, ... of next-gen rocket ships and spacecraft with extremely ... oil in water, it becomes iridescent, revealing a ...
(Date:9/30/2014)... 30, 2014 Shimadzu Scientific Instruments ... easy-to-use and highly precise tool for measuring displacement ... elongation. With 1000-mm maximum movement distance, the DSES-1000 ... a gauge length of 10 mm. In addition, ... above 50-mm stroke and within +/- 100 µm ...
(Date:9/30/2014)... 30, 2014  RegeneRx Biopharmaceuticals, Inc. (OTC: RGRX) ... has received a Canadian Patent for Inhibition or ... patent includes claims using thymosin beta 4, various ... for these purposes.  The patent will expire in ... ( www.regenerx.com ) RegeneRx is ...
Breaking Biology Technology:TeselaGen Receives $750k NSF SBIR Phase II Award 2TeselaGen Receives $750k NSF SBIR Phase II Award 3Taking thin films to the extreme 2Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2
... Ind. - Researchers are edging toward the creation ... of ultra-efficient transmission of light, with potential applications ... The metamaterial - layers of silver and titanium ... dramatically changes the properties of light. The light ...
... CRANBURY, N.J., May 25, 2012  Oncobiologics, Inc. announced ... positions with established biopharmaceutical industry experts. Stephen J. ... and Vincent J. Benn, Ph.D. has joined the ... The company also announced its new Scientific Advisory ...
... ANAHEIM, Calif., May 24, 2012 Questcor Pharmaceuticals, Inc. (NASDAQ: ... present at the Jefferies 2012 Global Healthcare Conference in New ... 8:00 a.m. ET. A live webcast and subsequent ... http://ir.questcor.com/events.cfm .  The replay will be available for approximately 90 ...
Cached Biology Technology:'Metamaterials,' quantum dots show promise for new technologies 2Oncobiologics Fills Key Leadership Positions and Names Scientific Advisory Board 2Oncobiologics Fills Key Leadership Positions and Names Scientific Advisory Board 3Questcor Pharmaceuticals to Present at Jefferies 2012 Global Healthcare Conference 2
This application changes sensitive keywords in an FCS file to remove patient information. It was contributed by Dr. David Miller....
... Anti-Natural Killer Cell Receptor-P1, clone ... Hybridoma produced by ... BALB/c mice immunized (BALB/c X ... cells and mouse myeloma cellline. ...
Phospho-SEK1/MKK4 (Thr261) Antibody...
Rabbit polyclonal to Warfarin ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule conjugated to KLH...
Biology Products: