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:1/22/2015)... Showcase, Hall E -   EyeLock Inc. , a market ... showcase its EyeLock ID technology integrated in a 3D printed ... Oak Ridge National Laboratory (ORNL) at the 2015 ... technology is being used to validate the driver and authorize ...
(Date:1/22/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) a ... the recent success of the Wocket™ smart wallet at CES 2015 in ... was named as one of the "11 Hot Products at CES" in ... At CES So Far" by Newseveryday.com and "The top 10 gadgets from ...
(Date:1/22/2015)... 2015 , Europe,s ... The European Patent Office to present a video retrospective of the ... be featured: Christofer Toumazou and Sophie Wilson   ... winners of the Award   Starting on 22 January ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3
... Central, the world,s largest open access publisher with over ... to add over 60,000 published articles into the latest ... "We are excited to introduce relationship-driven semantic searching of ... doing so, it is natural for us to incorporate ...
... National Institute of Standards and Technology (NIST) researcher Javier ... to simply, reliably and most of all, tightly, connect ... delivering liquids into the system. While pondering this one ... playing with them. As the magnets pulled apart and ...
... BETHESDA, Md. (Nov. 18, 2009) Strength training exercises using ... muscle, the large muscle which extends from the back of ... The exercises also improve the muscle,s ability to respond quickly ... tightness in the upper trapezius muscle. The results are the ...
Cached Biology News:Novel NIST connector uses magnets for leak-free microfluidic devices 25 exercises can reduce neck, shoulder pain of women office workers 25 exercises can reduce neck, shoulder pain of women office workers 3
(Date:3/3/2015)... -- Phillip Sharp, Institute Professor at the Massachusetts Institute of Technology ... the Koch Institute for Integrative Cancer Research, will receive the ... May 14, at the Chemical Heritage Foundation. Sharp is ... it was first awarded to Ralph Landau ... gave the scientific world a new view of the ...
(Date:3/2/2015)... 2015 Resilinc released online ... which summarizes and analyzes nearly 700 unique supply ... 24X7 global event monitoring and alert reporting service. ... free trial period of the email service to receive ... can negatively impact revenue, market share, customer satisfaction, and ...
(Date:3/2/2015)... 2015  Pfenex Inc. (NYSE MKT: PFNX), a ... biosimilar therapeutics, today announced that it will be ... in Miami, FL at the Loews Miami Beach Hotel.  Dr. ... Pfenex, will provide an overview of the company,s ... ET. A live audio webcast and archive of ...
(Date:3/2/2015)... 2, 2015 VG Life Sciences, Inc., ... autoimmune and infectious diseases, announced that the U.S. ... important new composition of matter patent covering methods ... of CLIP. U.S. Patent No. ... Life Sciences, VG1177, a synthetic peptide which has ...
Breaking Biology Technology:Phillip Sharp to Receive 2015 Othmer Gold Medal 2Phillip Sharp to Receive 2015 Othmer Gold Medal 3Resilinc Publishes 2014 EventWatch™ Supply Chain Disruption Annual Report 2Resilinc Publishes 2014 EventWatch™ Supply Chain Disruption Annual Report 3VG Life Sciences Granted Key Composition Of Matter Patent 2VG Life Sciences Granted Key Composition Of Matter Patent 3
... ... worst behind us. With only 308 job cuts announced in the pharmaceutical industry in March, 27,000 ... running, they may just be correct. , ... (Vocus) April 15, 2010 -- If the absence of bad news can be considered good news, ...
... ... TOLEDO announced attendance at the Partec/Powtech/WCPT6 on April 26-29 in Nuremberg, ... characterization product range including FBRM® C35, PVM® V819, and S400 laboratory ... be presenting three posters and one paper. FBRM® and PVM® technology ...
... biological systems such as cell membranes, and their ... as graphene. Now, Berkeley Lab scientists have made ... to date. This entirely new material mirrors the ... architecture needed for membranes or integration into functional ...
Cached Biology Technology:The MedZilla Report for April 2010 - Pharma Layoffs Drop Below 400 in March; Health Care Adds Another 27,000 Jobs 2The MedZilla Report for April 2010 - Pharma Layoffs Drop Below 400 in March; Health Care Adds Another 27,000 Jobs 3Track Particle Distribution in Real Time 2Track Particle Distribution in Real Time 3Berkeley Lab scientists create 'molecular paper' 2
IMAGEQUANT 100 WKSTN, 1 EA. Category: ImageQuant CCD Imagers....
The FlowTACS Apoptosis Detection Kit is designed specifically for in situdetection of apoptotic...
RayBio Human Cytokine Antibody Array 1.1 (4 array membranes) with Accessory, detects 20 cytokines (for lysate) Class: Antibody Array Products Product Group: Antibody Array...
HybriWell™ hybridization sealing system, 22 mm x 22 mm chamber, 0.15 mm deep *set of 100*...
Biology Products: