Navigation Links
Animal magnetism: First evidence that magnetism helps salmon find home
Date:2/7/2013

When migrating, sockeye salmon typically swim up to 4,000 miles into the ocean and then, years later, navigate back to the upstream reaches of the rivers in which they were born to spawn their young. Scientists, the fishing community and lay people have long wondered how salmon find their way to their home rivers over such epic distances.

How do they do that?

A new study, published in this week's issue of Current Biology and partly funded by the National Science Foundation, suggests that salmon find their home rivers by sensing the rivers' unique magnetic signature.

As part of the study, the research team used data from more than 56 years of catches in salmon fisheries to identify the routes that salmon had taken from their most northerly destinations, which were probably near Alaska or the Aleutian Islands in the Pacific Ocean, to the mouth of their home river--the Fraser River in British Columbia, Canada. This data was compared to the intensity of the Earth's magnetic field at pivotal locations in the salmon's migratory route.

The Earth has a magnetic field that weakens with proximity to the equator and distance from the poles and gradually changes on a yearly basis. Therefore, the intensity of the magnetosphere in any particular location is unique and differs slightly from year to year.

Because Vancouver Island is located directly in front of the Fraser River's mouth, it blocks direct access to the river's mouth from the Pacific Ocean. However, salmon may slip behind Vancouver Island and reach the river's mouth from the north via the Queen Charlotte Strait or from the south via the Juan De Fuca Strait.

Results from this study showed that the intensity of the magnetic field largely predicted which route the salmon used to detour around Vancouver Island; in any given year, the salmon were more likely to take whichever route had a magnetic signature that most closely matched that of the Fras
'/>"/>

Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Parkinsons disease stopped in animal model
2. Study suggests why some animals live longer
3. Are we really a nation of animal lovers?
4. NOAA discovers way to detect low-level exposure to seafood toxin in marine animals
5. China poised to accept first-ever non-animal test method for cosmetics
6. Elephant seal tracking reveals hidden lives of deep-diving animals
7. Deep sea animals stowaway on submarines and reach new territory
8. T cells hunt parasites like animal predators seek prey, a Penn Vet-Penn Physics study reveals
9. Animal reservoir mystery solved
10. WALTHAM® demonstrates commitment to scientific dialogue and exchange at international human animal interaction conference
11. Environmental concerns increasing infectious disease in amphibians, other animals
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Animal magnetism: First evidence that magnetism helps salmon find home
(Date:10/30/2014)... Bacteria in the gastrointestinal tract fulfill many vital ... same bacteria can induce strong inflammatory responses by ... and enter the bloodstream. , Although acute inflammation ... chronic or systemic inflammation is linked to numerous ... involvement of inflammatory processes in the development of ...
(Date:10/30/2014)... 30 October 2014 Biological membranes are mainly composed ... adsorption of solution ions onto lipid membranes helps ... new study provides a quantitative description of the ... Joanna Kotyńska and Zbigniew Figaszewski from the University ... study describing these findings, just published in ...
(Date:10/29/2014)... and gas production are well over recommended levels in ... journal Environmental Health . High levels of benzene, ... the first to be based on community sampling by ... used to supplement official air-quality monitoring programs. , Unconventional ... readily flow to the surface. This is because they ...
Breaking Biology News(10 mins):Breakdown in gut barriers to bacteria may promote inflammation and craving in alcoholics 2Ion adsorption matter in biology 2Air quality and unconventional oil and gas sites 2Air quality and unconventional oil and gas sites 3
... in Northern Ireland, the number of people surviving the disease ... Each year there are between 50-60 men and women ... have died. The survival rates in Northern Ireland for ... the UK, and its patients are benefiting from improved treatment ...
... In 2012 Wiley-Blackwell, the Scientific, Technical, Medical, and Scholarly ... begin publishing 44 titles new to its journal program, ... collaboration with societies or other organizations. Brand new ... of 2012 include Advanced Healthcare Materials , ...
... 28, 2012) Abstracts are now being accepted for ... Diseases Society of America (IDSA), the Society for Healthcare ... and the Pediatric Infectious Diseases Society (PIDS). ... 2012, in San Diego, CA. With the theme Advancing ...
Cached Biology News:More people surviving cancer in Northern Ireland 2Wiley-Blackwell adds 44 titles to journal publishing program in 2012 2
(Date:10/31/2014)... 2014 ENVIRON , an ... today that Dr. Harvey Clewell III has rejoined ... work closely with senior professionals in ENVIRON’s Health ... serve at The Hamner Institutes for Health Sciences ... where he is Director, Center for Human Health ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 The report ... Chemicals), by Application (Cosmetics & Toiletries, and Soaps & ... to 2019”, has defined and segmented the Fragrance Ingredients ... trends in terms of value. The market has been ... North America, Europe, Asia-Pacific, Latin America, and Rest of ...
(Date:10/30/2014)... (PRWEB) October 30, 2014 2014 ... HCL Industry” is a professional and in-depth research ... provides basic Naltrexone HCL information, including its definition, ... as industry overview. This research covers the international ... as global industry analysis covering macroeconomic environment & ...
(Date:10/30/2014)... 2014 James Sherley says he has been ... stem cell technology since his days as a principal investigator ... the late 1990’s. Sherley founded the ASCTC as a ... all the intellectual property developed in Sherley’s research over the ... Institute of Technology (MIT), and more recently as a senior ...
Breaking Biology Technology:Internationally recognized health scientist Dr. Harvey Clewell renews association with ENVIRON 2Internationally recognized health scientist Dr. Harvey Clewell renews association with ENVIRON 3Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 2Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 3Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 4Fragrance Ingredients Market worth $17,104.21 Million by 2019 - New Report by MarketsandMarkets 5Naltrexone HCL Market & Nalbuphine HCL Industry Analysis for Global, China Regions Now at DeepResearchReports.com 2Naltrexone HCL Market & Nalbuphine HCL Industry Analysis for Global, China Regions Now at DeepResearchReports.com 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 2Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 3Boston’s Adult Stem Cell Technology Center, LLC Introduces A New Technology for Monitoring Previously Elusive Adult Stem Cells 4
... Inc. (Nasdaq: NSTK ) announced today that they ... leader in the production of,plasma products, to develop an ... administered by injection to control and prevent,bleeding in patients ... with our new global partner to evaluate the,feasibility of ...
... new, free white paper,addressing the challenges of ... awaiting combination products manufacturers, is now available,for ... combination products are experiencing dramatic growth, the,convergence ... of regulatory,challenges. Manufacturers must ensure their products ...
... Finesse Solutions, LLC,Santa Clara, CA, a manufacturer ... applications, announced the general release of its,TruBio(TM) IOQ ... guesswork,out of validation and to complement the fully ... of control systems can be expensive and time,consuming, ...
Cached Biology Technology:Nastech Enters Into Feasibility Study to Develop a Non-Injectable Dosage Form of Factor IX to Control Bleeding 2Free White Paper Addresses Challenges of New FDA Regulations Awaiting Combo Product Manufacturers 2Finesse Introduces TruBio(TM) IOQ 2
Request Info...
... Concentration Basement Membrane Extract Cultrex HC20+ ... vivo applications where higher protein concentrations ... strength, and elevated levels of tumor ... of lot-to-lot consistency and controlled protein ...
mitochondrial proteins (human heart) for SDS-polyacrylamide gel electrophoresis *2 mg/mL*...
...
Biology Products: